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KeyTipService with single RadRibbonTab
Hello, 

My application uses a RadRibbonView with a single tab in which I hide the header. I would like to add KeyTips to every RadRibbonButton but I don't want to have to give a KepTip to the tab the buttons are part of. 

Basically, when a user presses the Alt key, I want the KeyTips to appear for all of the RadRibbonButtons in the RadRibbonView such that the user doesn't have to select the RadRibbonTab they are a part of.

Thanks,
Jason
RibbonView and RibbonWindow
Kiril Vandov
Telerik team
 answered on 01 Mar 2016
1 answer
267 views
MVVM Filtered + Filtering Event

Hi, when using the GridViewSelectColumn filters, it deselects the selecteditems. So I use this bit of code to fix it 

 

private void LoanGrid_OnFiltered(object sender, GridViewFilteredEventArgs e)
{
    LoanGrid.SelectedItems.AddRange(SelectedLoans);
}
         
public BindableCollection<LoanDTO> SelectedLoans { get; set; }
         
private void LoanGrid_OnFiltering(object sender, GridViewFilteringEventArgs e)
{
    SelectedLoans = new BindableCollection<LoanDTO>();
    foreach (var selectedItem in LoanGrid.SelectedItems)
    {
        SelectedLoans.Add((LoanDTO)selectedItem);
    }
}

That works perfectly fine, but I'm trying to have it be in MVVM format using caliburn.

on xaml side,     cal:Message.Attach="[Filtered] = [Filtered];[Filtering] = [Filtering] "

ViewModel

 

private BindableCollection<LoanDTO> _oldLoans = new BindableCollection<LoanDTO>();
 
public void Filtered()
{
    SelectedLoans = new BindableCollection<LoanDTO>(Items.Where(x => _oldLoans.Any(y => y.Id == x.Id)));
}
 
public void Filtering()
{
    _oldLoans = new BindableCollection<LoanDTO>();
    foreach (var selectedItem in SelectedLoans)
    {
        _oldLoans.Add(selectedItem);
    }
}

 

The selecteditems get cleared using the MVVM methods. Any thoughts?

GridView
Stefan
Telerik team
 answered on 01 Mar 2016
5 answers
107 views
TileView
I'm using telerik tile view in my application, when I mouse over the minimize and maximize the button on the tile, it displayed the message correctly in "en", What should I do to make the text(Minimize, Maximize) as localized
General Discussions
sheik
Top achievements
Rank 1
 answered on 01 Mar 2016
2 answers
674 views
Problem while styling the RadComboBox

Hello, I am trying to stylize a combo box to look like the "Combo.png" image, but I am facing some problems.

The image "Combo atual.png" shows the farest I could go, but there's some problems:
- There is no border;
- I can only open the combo box popup, by clicking on the DropDownIcon, and I would like to opent it, by clicking on the entire component.


So, I would like a transparent/white combobox that I can open and close the popup, by clinking wherever I want inside the component, like the non stylized telerik combobox.



Notice that the gi:GIComboBox, is a component of mine that inherits the RadComboBox. So, it is the same as use "telerik:RadComboBox".

Can anyone help me to figure it out?

Here is my code:

<ResourceDictionary
    xmlns:System="clr-namespace:System;assembly=mscorlib"
    xmlns:Telerik_Windows_Controls_MaskedTextBox="clr-namespace:Telerik.Windows.Controls.MaskedTextBox;assembly=Telerik.Windows.Controls.Input"
    xmlns:Telerik_Windows_Controls_Chromes="clr-namespace:Telerik.Windows.Controls.Chromes;assembly=Telerik.Windows.Controls"
    xmlns:Telerik_Windows_Controls_MaskedInput="clr-namespace:Telerik.Windows.Controls.MaskedInput;assembly=Telerik.Windows.Controls.Input"    
    xmlns:Chromes="clr-namespace:Telerik.Windows.Controls.Chromes;assembly=Telerik.Windows.Controls"
    xmlns:gi="clr-namespace:NL.GI.ComponentesWPF.Cliente">
 
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="/NL.GI.ComponentesWPF.Cliente;component/Themes/System.Windows.xaml" />
        <ResourceDictionary Source="/NL.GI.ComponentesWPF.Cliente;component/Themes/Telerik.Windows.Controls.xaml" />
        <ResourceDictionary Source="/NL.GI.ComponentesWPF.Cliente;component/Themes/Telerik.Windows.Controls.Input.xaml" />
        <ResourceDictionary Source="/NL.GI.ComponentesWPF.Cliente;component/Themes/Telerik.Windows.Controls.GridView.xaml" />
        <ResourceDictionary Source="/NL.GI.ComponentesWPF.Cliente;component/Themes/GIBase.xaml"/>
    </ResourceDictionary.MergedDictionaries>
 
    <Style x:Key="GIComboBoxStyle" TargetType="{x:Type gi:GIComboBox}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type gi:GIComboBox}">
                    <Grid x:Name="VisualRoot">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Content">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.5"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.5"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="#FF8D8D8D"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderEnabled" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>False</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.6"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="DisabledBorder">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="MouseOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderMouseOver" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>True</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="DropDownOpen">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="FocusStates">
                                <VisualState x:Name="Focused"/>
                                <VisualState x:Name="Unfocused"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Border Background="{TemplateBinding Background}" CornerRadius="1" IsHitTestVisible="False"/>
                        <telerik:RadToggleButton x:Name="PART_DropDownButton" BorderBrush="Black" ClickMode="Press" Foreground="{TemplateBinding Foreground}" IsTabStop="False" InnerCornerRadius="0" Margin="0" Padding="0">
                            <telerik:StyleManager.Theme>
                                <telerik:Office_BlackTheme/>
                            </telerik:StyleManager.Theme>
                            <telerik:RadToggleButton.Template>
                                <ControlTemplate TargetType="{x:Type telerik:RadToggleButton}">
                                    <ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}"/>
                                </ControlTemplate>
                            </telerik:RadToggleButton.Template>
                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <Border x:Name="DisabledBorder" BorderBrush="#FF989898" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Opacity="0"/>
                                <Chromes:ButtonChrome x:Name="ButtonChrome" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsDropDownOpen}" RenderFocused="{TemplateBinding IsFocused}" RenderEnabled="{TemplateBinding IsEnabled}">
                                    <telerik:StyleManager.Theme>
                                        <telerik:Office_BlackTheme/>
                                    </telerik:StyleManager.Theme>
                                </Chromes:ButtonChrome>
                                <Border Background="{TemplateBinding Background}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Margin="1"/>
                                <ContentControl x:Name="DropDownIcon" Background="White" Grid.Column="1" Foreground="Black" IsTabStop="False">
                                    <ContentControl.Template>
                                        <ControlTemplate TargetType="{x:Type ContentControl}">
                                            <Grid Margin="5,0">
                                                <Path x:Name="BackgroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Background}" Height="3" Margin="0,2,0,0" Stretch="Fill" Width="5"/>
                                                <Path x:Name="ForegroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Foreground}" Height="3" Margin="0,1" Stretch="Fill" Width="5"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </ContentControl.Template>
                                </ContentControl>
                                <ContentPresenter x:Name="Content" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" Content="{TemplateBinding SelectionBoxItem}" Grid.Column="0" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="False" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                            </Grid>
                        </telerik:RadToggleButton>
                        <Popup x:Name="PART_Popup">
                            <Grid x:Name="PopupRoot">
                                <Border x:Name="PART_ResizeBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="White" CornerRadius="1" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding MinDropDownWidth}">
                                    <Grid>
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="Auto"/>
                                            <RowDefinition Height="*"/>
                                        </Grid.RowDefinitions>
                                        <telerik:RadButton x:Name="PART_ClearButton" Content="{TemplateBinding ClearSelectionButtonContent}" InnerCornerRadius="0" Margin="-1,-1,-1,0" Grid.Row="0" Visibility="{TemplateBinding ClearSelectionButtonVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                        </telerik:RadButton>
                                        <ScrollViewer x:Name="PART_ScrollViewer" BorderThickness="0" CanContentScroll="True" Foreground="{TemplateBinding Foreground}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" Padding="0,1,0,0" Grid.Row="1" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                            <ItemsPresenter/>
                                        </ScrollViewer>
                                    </Grid>
                                </Border>
                            </Grid>
                        </Popup>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Setter Property="EditableTemplate">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type gi:GIComboBox}">
                    <Grid x:Name="VisualRoot">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="Border">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="#FF989898"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="MouseOverVisual">
                                            <LinearDoubleKeyFrame KeyTime="0:0:0.05" Value="0"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MouseOverVisual">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0.05">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Collapsed</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderEnabled" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>False</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimation Duration="0" To="0.6" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_EditableTextBox"/>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="#FF8D8D8D"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="Background">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="#FFE0E0E0"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Background">
                                            <LinearDoubleKeyFrame KeyTime="0" Value="0.6"/>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Normal">
                                    <Storyboard>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="MouseOverVisual">
                                            <LinearDoubleKeyFrame KeyTime="0:0:0.15" Value="0"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MouseOverVisual">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0.15">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Collapsed</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="MouseOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderActive" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>True</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="MouseOverVisual">
                                            <LinearDoubleKeyFrame KeyTime="0:0:0.115" Value="1"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MouseOverVisual">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="DropDownOpen">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="Border">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                                                        <GradientStop Color="#FF282828"/>
                                                        <GradientStop Color="#FF5F5F5F" Offset="1"/>
                                                    </LinearGradientBrush>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="MouseOverVisual">
                                            <LinearDoubleKeyFrame KeyTime="0:0:0.05" Value="0"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="MouseOverVisual">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0.05">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Collapsed</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisual">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="FocusStates">
                                <VisualState x:Name="Focused">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderFocused" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>True</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="FocusVisual">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0.15">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Unfocused"/>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="WatermarkStates">
                                <VisualState x:Name="WatermarkVisible">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Watermark">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="WatermarkInvisible"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Border x:Name="Background" Background="White" Grid.Column="0" CornerRadius="1,0,0,1" IsHitTestVisible="False"/>
                        <Border Background="{TemplateBinding Background}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Margin="1"/>
                        <Border x:Name="Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False"/>
                        <Border x:Name="MouseOverVisual" BorderBrush="#FFFFC92B" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Opacity="0" Visibility="Collapsed"/>
                        <TextBox x:Name="PART_EditableTextBox" BorderBrush="Transparent" BorderThickness="0" Background="Transparent" Grid.Column="0" Foreground="{TemplateBinding Foreground}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{TemplateBinding IsReadOnly}" Margin="1,1,0,1" Padding="{TemplateBinding Padding}" VerticalAlignment="Center" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}">
                            <TextBox.Template>
                                <ControlTemplate TargetType="{x:Type TextBox}">
                                    <Grid>
                                        <ScrollViewer x:Name="PART_ContentHost" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" IsTabStop="False" Padding="{TemplateBinding Padding}" VerticalScrollBarVisibility="Auto" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                        </ScrollViewer>
                                    </Grid>
                                </ControlTemplate>
                            </TextBox.Template>
                        </TextBox>
                        <Border x:Name="FocusVisual" BorderBrush="#FFFFC92B" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Visibility="Collapsed">
                            <Border BorderBrush="Transparent" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="0"/>
                        </Border>
                        <telerik:RadToggleButton x:Name="PART_DropDownButton" ClickMode="Press" Grid.Column="1" IsTabStop="False" InnerCornerRadius="0" Margin="0" Padding="0">
                            <telerik:StyleManager.Theme>
                                <telerik:Office_BlackTheme/>
                            </telerik:StyleManager.Theme>
                            <telerik:RadToggleButton.Template>
                                <ControlTemplate TargetType="{x:Type telerik:RadToggleButton}">
                                    <ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}"/>
                                </ControlTemplate>
                            </telerik:RadToggleButton.Template>
                            <Grid>
                                <Chromes:ButtonChrome x:Name="ButtonChrome" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="0,1,1,0" RenderMouseOver="{Binding IsMouseOver, ElementName=PART_DropDownButton}" RenderPressed="{TemplateBinding IsDropDownOpen}" RenderFocused="{TemplateBinding IsKeyboardFocusWithin}" RenderActive="{TemplateBinding IsMouseOver}" RenderEnabled="{TemplateBinding IsEnabled}">
                                    <telerik:StyleManager.Theme>
                                        <telerik:Office_BlackTheme/>
                                    </telerik:StyleManager.Theme>
                                </Chromes:ButtonChrome>
                                <ContentControl x:Name="DropDownIcon" Background="White" Grid.Column="1" Foreground="Black" IsTabStop="False">
                                    <ContentControl.Template>
                                        <ControlTemplate TargetType="{x:Type ContentControl}">
                                            <Grid Margin="5,0">
                                                <Path x:Name="BackgroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Background}" Height="3" Margin="0,2,0,0" Stretch="Fill" Width="5"/>
                                                <Path x:Name="ForegroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Foreground}" Height="3" Margin="0,1" Stretch="Fill" Width="5"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </ContentControl.Template>
                                </ContentControl>
                            </Grid>
                        </telerik:RadToggleButton>
                        <TextBlock x:Name="Watermark" HorizontalAlignment="Left" IsHitTestVisible="False" Margin="5,0,0,0" Opacity="0.5" Text="{TemplateBinding EmptyText}" Visibility="Collapsed" VerticalAlignment="Center"/>
                        <Popup x:Name="PART_Popup">
                            <Grid x:Name="PopupRoot">
                                <Border x:Name="PART_ResizeBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="White" CornerRadius="1" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding MinDropDownWidth}">
                                    <Grid>
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="Auto"/>
                                            <RowDefinition Height="*"/>
                                        </Grid.RowDefinitions>
                                        <telerik:RadButton x:Name="PART_ClearButton" Content="{TemplateBinding ClearSelectionButtonContent}" InnerCornerRadius="0" Margin="-1,-1,-1,0" Grid.Row="0" Visibility="{TemplateBinding ClearSelectionButtonVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                        </telerik:RadButton>
                                        <ScrollViewer x:Name="PART_ScrollViewer" BorderThickness="0" CanContentScroll="True" Foreground="{TemplateBinding Foreground}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" Padding="0,1,0,0" Grid.Row="1" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                            <ItemsPresenter/>
                                        </ScrollViewer>
                                    </Grid>
                                </Border>
                            </Grid>
                        </Popup>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Setter Property="NonEditableTemplate">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type gi:GIComboBox}">
                    <Grid x:Name="VisualRoot">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Content">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.5"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.5"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="#FF8D8D8D"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderEnabled" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>False</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="0.6"/>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="DisabledBorder">
                                            <DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="MouseOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderMouseOver" Storyboard.TargetName="ButtonChrome">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <System:Boolean>True</System:Boolean>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="DropDownOpen">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="Black"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="DropDownIcon">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <SolidColorBrush Color="White"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="FocusStates">
                                <VisualState x:Name="Focused"/>
                                <VisualState x:Name="Unfocused"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Border Background="{TemplateBinding Background}" CornerRadius="1" IsHitTestVisible="False"/>
                        <telerik:RadToggleButton BorderBrush="Black" x:Name="PART_DropDownButton" ClickMode="Press" Foreground="{TemplateBinding Foreground}" IsTabStop="False" InnerCornerRadius="0" Margin="0" Padding="0">
                            <telerik:StyleManager.Theme>
                                <telerik:Office_BlackTheme/>
                            </telerik:StyleManager.Theme>
                            <telerik:RadToggleButton.Template>
                                <ControlTemplate TargetType="{x:Type telerik:RadToggleButton}">
                                    <ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}"/>
                                </ControlTemplate>
                            </telerik:RadToggleButton.Template>
                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <Border x:Name="DisabledBorder" BorderBrush="#FF989898" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Opacity="0"/>
                                <Chromes:ButtonChrome x:Name="ButtonChrome" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" CornerRadius="1" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsDropDownOpen}" RenderFocused="{TemplateBinding IsFocused}" RenderEnabled="{TemplateBinding IsEnabled}">
                                    <telerik:StyleManager.Theme>
                                        <telerik:Office_BlackTheme/>
                                    </telerik:StyleManager.Theme>
                                </Chromes:ButtonChrome>
                                <Border Background="{TemplateBinding Background}" Grid.ColumnSpan="2" CornerRadius="1" IsHitTestVisible="False" Margin="1"/>
                                <ContentControl x:Name="DropDownIcon" Background="White" Grid.Column="1" Foreground="Black" IsTabStop="False">
                                    <ContentControl.Template>
                                        <ControlTemplate TargetType="{x:Type ContentControl}">
                                            <Grid Margin="5,0">
                                                <Path x:Name="BackgroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Background}" Height="3" Margin="0,2,0,0" Stretch="Fill" Width="5"/>
                                                <Path x:Name="ForegroundIcon" Data="M0,0L2,0 1,1z" Fill="{TemplateBinding Foreground}" Height="3" Margin="0,1" Stretch="Fill" Width="5"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </ContentControl.Template>
                                </ContentControl>
                                <ContentPresenter x:Name="Content" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" Content="{TemplateBinding SelectionBoxItem}" Grid.Column="0" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="False" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                            </Grid>
                        </telerik:RadToggleButton>
                        <Popup x:Name="PART_Popup">
                            <Grid x:Name="PopupRoot">
                                <Border x:Name="PART_ResizeBorder" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="White" CornerRadius="1" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding MinDropDownWidth}">
                                    <Grid>
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="Auto"/>
                                            <RowDefinition Height="*"/>
                                        </Grid.RowDefinitions>
                                        <telerik:RadButton x:Name="PART_ClearButton" Content="{TemplateBinding ClearSelectionButtonContent}" InnerCornerRadius="0" Margin="-1,-1,-1,0" Grid.Row="0" Visibility="{TemplateBinding ClearSelectionButtonVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                        </telerik:RadButton>
                                        <ScrollViewer x:Name="PART_ScrollViewer" BorderThickness="0" CanContentScroll="True" Foreground="{TemplateBinding Foreground}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" Padding="0,1,0,0" Grid.Row="1" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
                                            <telerik:StyleManager.Theme>
                                                <telerik:Office_BlackTheme/>
                                            </telerik:StyleManager.Theme>
                                            <ItemsPresenter/>
                                        </ScrollViewer>
                                    </Grid>
                                </Border>
                            </Grid>
                        </Popup>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
        <Setter Property="MinHeight" Value="22"/>
        <Setter Property="Padding" Value="4,0"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="BorderBrush" Value="#FF848484"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
        <Setter Property="SnapsToDevicePixels" Value="True"/>
        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
        <Setter Property="Cursor" Value="Hand" />
    </Style>
 
</ResourceDictionary>

 

 

Thank you

ComboBox
Masha
Telerik team
 answered on 01 Mar 2016
3 answers
123 views
DataFormValidationSummary.Errors is no longer settable

Just installed UI for WPF Q1 217 SP1 and received this error.

error MC3080: The property 'DataFormValidationSummary.Errors' cannot be set because it does not have an accessible set accessor.

We have been using the DataFormValidationSummary outside of the DataForm for years.  This is a serious breaking change for us.  Can you provide a work around?

Thanks in advance,

Steve

DataForm
Steve
Top achievements
Rank 1
 answered on 29 Feb 2016
2 answers
348 views
GroupDescriptor custom DataFormatString

Hi,

I have a GridView for a DesktopAlert. It is like the example in your demos. 

For the grouping by email received datetime I have used the same example: 

 

var dateGroupDescriptor = new Telerik.Windows.Data.GroupDescriptor<Message, DateTime, DateTime>();
 
           dateGroupDescriptor.GroupingExpression = email => email.Received.Value.Date;
           this.gridView.GroupDescriptors.Add(dateGroupDescriptor);
 
           var dateSortDescriptor = new SortDescriptor<Message, DateTime>();
           dateSortDescriptor.SortingExpression = item => item.Received.Value;
           dateSortDescriptor.SortDirection = System.ComponentModel.ListSortDirection.Descending;
           this.gridView.SortDescriptors.Add(dateSortDescriptor);

 

It works succesfull, however the format of the group header is "mm/dd/yyyy" and I need other date formart. 

How do I change the date format string?

 

Thanks!

GridView
Fernan
Top achievements
Rank 1
 answered on 29 Feb 2016
1 answer
150 views
RadGridView : Merged Cells adding custom style

Hi,

I would like to use RadGridView for merge cell feature. I have requirement that it should display icon along with Text which will come from database. Icons will dynamic icons based on condition. 

Can you please help me out for how to add icon in Merged cell? I have attached sample image from Telerik Demo by adding my requirement how i want it.

Thanks

GridView
Stefan
Telerik team
 answered on 29 Feb 2016
1 answer
149 views
The BC date
How does Timeline Control deal with the BC date?
TimeLine
Dinko | Tech Support Engineer
Telerik team
 answered on 29 Feb 2016
1 answer
144 views
Width of GroupHeaders

Hi,

is there a way to prevent the vertical weekview from showing horizontal scrollbars by narrowing the groupheaders to the available space? I also realized, that when you put a lot of appointments into one slot, this group gets more space than the others.

What I want is, that every column has the exact same width and they use only the space available in the current window without horizontal scrolling.

Thanks

Matthias

ScheduleView
Yana
Telerik team
 answered on 29 Feb 2016
1 answer
228 views
TreeView, virtualization, style triggers, and DefaultImageSrc

Recently, when we enabled UI virtualization for RadTreeView in our application, our icons for the RadTreeViewItems disappeared.

We set the icons (DefaultImageSrc) in DataTrigger setters in a style, as follows:

 

<UserControl ...>
    <UserControl.Resources>
        <Style x:Key="TreeViewItemStyleBase" TargetType="{x:Type telerik:RadTreeViewItem}">
            ... 
            <Style.Triggers>
                <DataTrigger Binding="{Binding ...}">
                    <DataTrigger.Value>...</DataTrigger.Value>
                    <Setter Property="DefaultImageSrc" Value="/Our App;component/Resources/Icons/grid.png" />
                </DataTrigger>
 
                <DataTrigger Binding="{Binding ...}">
                    <DataTrigger.Value>...</DataTrigger.Value>
                    <Setter Property="DefaultImageSrc" Value="/Our App;component/Resources/Icons/bargraph.png" />
                </DataTrigger>
 
            </Style.Triggers>
        </Style>

 

        <Style TargetType="{x:Type telerik:RadTreeViewItem}" BasedOn="{StaticResource TreeViewItemStyleBase}" />
 
    </UserControl.Resources>
 
    <telerik:RadTreeView
                         IsVirtualizing="True" telerik:TreeViewPanel.VirtualizationMode="Hierarchical"
                         ... >
        ...
    </telerik:RadTreeView>
</UserControl>

 

This is with UI for WPF v. 2015.2.0401

 

It looks like this is the known bug described here and here.   That is, the problem is that DefaultImageSrc is non-functional in virtualized trees.

1) Can I get a confirmation that this bug is indeed causing our difficulty, please?  Is there anything else you see that would cause it?

2) It looks like you all have declined to fix this bug in the past.  Still declining? :)

3) I could recommend that the documentation for UI Virtualization with RadTreeView here be updated, please, to to include some very obvious notes, a) that enabling virtualization will disable DefaultImageSrc and ExpandedImageSrc (and any other TreeView features that don't work with virtualization?), and b) that workarounds are necessary.

 

Thanks!

 

-David

 

 

TreeView
Petar Mladenov
Telerik team
 answered on 29 Feb 2016
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