Questions on UI for WPF Forum

3 answers

99 views

Hi Progress Team,

I added a RadCalendar component to my project but when changing the base week of this 2x2 grid calendar the weeknumbers stay the same all the time. Have I missed something here? How do they update? I used the following code for the XAML definition:

<telerik:RadCalendar

Grid.Column="0"

Margin="36,10,10,10"

AreWeekNamesVisible="True"

AreWeekNumbersVisible="True"

CalendarWeekRule="FirstFourDayWeek"

Columns="2"

Culture="de-DE"

DateSelectionMode="Day"

FirstDayOfWeek="Monday"

Foreground="White"

Rows="2"

SelectionMode="Extended"

ViewsHeaderVisibility="Visible">

</telerik:RadCalendar>

Calendar

answered on 16 Jul 2019

1 answer

228 views

Menu Items not visible in designer

Hello!

We've recently started replacing standard WPF controls with their Telerik counterparts in our project and we've noticed that Telerik menu items are not visible at design time where the standard WPF menu items are. Is this a bug?

Menu

answered on 16 Jul 2019

2 answers

671 views

ContextMenu in ItemTemplate

I am working on some legacy code, I have RadTreeView with Item template which expand the hierarchy at doubleclick, I want to add a contextmenu which expand the hierarchy in the same way, problem is that there is no command to bind to expand nodes. How can I have the context menu work in the same way as the itemtemplate?

 <telerik:RadTreeView Grid.Row="2" Background="White" BorderBrush="DarkGray" BorderThickness="1" VerticalAlignment="Stretch" 

Name="ResultSetReportTreeView" 

IsVirtualizing="True" 

ItemDoubleClick="RadTreeViewItemDoubleClick" 

                                         Width="{Binding ElementName=GuideControl, Path=ActualWidth}"<

br

>                                         ItemContainerStyle="{StaticResource ResourceKey=HierarchyTreeViewStyle}"<

br> SelectedItem="{Binding Path=SelectedNode, Mode=TwoWay}" 

ItemsSource="{Binding ResultSetReportNodes}" 

SelectionMode="Single" > 

 <telerik:RadTreeView.Resources> 

<Style TargetType="{x:Type telerik:RadTreeViewItem}"> 

<Setter Property="IsExpanded" Value="{Binding Path=IsExpanded, Mode=TwoWay}" /> 

</Style> 

</telerik:RadTreeView.Resources> 

<telerik:RadTreeView.ItemTemplate> 

<HierarchicalDataTemplate ItemsSource="{Binding Path=Children}"> 

<StackPanel Orientation="Horizontal" Background="Transparent" ToolTip="{Binding Path=Name, Mode=OneWay}"> 

<Image Style="{StaticResource ResourceKey=IconStyle}" VerticalAlignment="Center" Margin="5,0,0,0"/> 

<TextBlock Text="{Binding Path=Name}" ToolTip="{Binding Path=Name, Mode=OneWay}" Margin="5,0,0,0"/> 

 

<StackPanel.ContextMenu> 

<ContextMenu>   <MenuItem Header="{localization:Resx ResxName=Palantir.CommonResources.ButtonLabels, Key=Expand}" Command=

"{Binding Path=PlacementTarget.Tag.ExpandAllDescendantFoldersCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ContextMenu}}, Mode=OneWay}"

> 

</MenuItem> 

</ContextMenu> 

</StackPanel.ContextMenu> 

</StackPanel> 

 

</HierarchicalDataTemplate> 

</telerik:RadTreeView.ItemTemplate> 

</telerik:RadTreeView> 

</Grid> 

</telerik:RadExpander> 

ContextMenu

answered on 15 Jul 2019

4 answers

1.7K+ views

Add new row and set focus to second cell on gridview keyboard focus

Hello,

I have the following requirements:

When the user enters from outside the grid into the empty grid a new row should be created and the second cell should be selected in edit mode.
When the user enters from outside the grid into a grid with existing rows, the second cell should be selected in edit mode.

I am using the enter-key to move to the next field in a particular viewmodel, instead of the tab-key.

How can I accomplish this, I tried searching a solution but couldnt find anything that accomplish this when entering the grid from outside?

Any help would be greatly appreciated.

Marcel

GridView

answered on 15 Jul 2019

4 answers

3.9K+ views

Set background color when disabled

Hi,

I'm trying to set the background color for a disabled MultiColumnComboBox using a style, without succes. Here's my code

<Style x:Key="DefaultTelerikRadMultiColumnComboBoxStyle" TargetType="telerik:RadMultiColumnComboBox" BasedOn="{StaticResource RadMultiColumnComboBoxStyle}">

<Setter Property="FontFamily" Value="{StaticResource DefaultFont}"/>

<Setter Property="FontSize" Value="{StaticResource DefaultFontSize}"/>

<Setter Property="FontWeight" Value="{StaticResource DefaultFontWeight}"/>

<Setter Property="MinHeight" Value="{StaticResource DefaultMinimumHeight}"/>

<Setter Property="KeepDropDownOpen" Value="False"/>

<Setter Property="CloseDropDownAfterSelectionInput" Value="True"/>

<Setter Property="SelectionBoxesVisibility" Value="Visible"/>

<Setter Property="Validation.ErrorTemplate" Value="{StaticResource ErrorTemplate}"/>

<Style.Triggers>

<Trigger Property="IsEnabled" Value="True">

<Setter Property="Background" Value="{StaticResource DefaultTextBoxBackgroundColor}"/>

</Trigger>

<Trigger Property="IsEnabled" Value="False">

<Setter Property="Background" Value="WhiteSmoke"/>

</Trigger>

<Trigger Property="IsFocused" Value="True">

<Setter Property="Background" Value="{StaticResource DefaultTextBoxIsFocusedBackgroundColor}"/>

</Trigger>

</Style.Triggers>

</Style>

<Style TargetType="{x:Type telerik:RadMultiColumnComboBox}" BasedOn="{StaticResource DefaultTelerikRadMultiColumnComboBoxStyle}"/>

Any ideas ?

Regards
Hans

MultiColumnComboBox

answered on 15 Jul 2019

6 answers

3.6K+ views

RadComboBox with checkbox with multi select (using MVVM)

I have a radcombobox that has a list of checkboxes that has multiselect.

-- template for the checkbox

<UserControl.Resources>

<DataTemplate x:Key="MultiSelectComboTemplate">

<Grid>

<Grid.RowDefinitions>

<RowDefinition/>

</Grid.RowDefinitions>

<StackPanel Orientation="Horizontal">

<CheckBox x:Name="checkbox" IsChecked="{Binding IsSelected}" Command="{Binding ElementName=_cboTeams, Path=DataContext.SelectCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type telerik:RadComboBox}}}"/>

<TextBlock Text="{Binding Name}" Margin="5 0 0 0"/>

</StackPanel>

</Grid>

</DataTemplate>

<CollectionViewSource x:Key="teams" Source="{Binding Teams}"/>

</UserControl.Resources>

-- radcombobox

<telerik:RadComboBox x:Name="_cboTeams" Grid.Row="1" Grid.Column="2" Margin="5 0 5 0" Width="120"

SelectedValuePath="Id"

ItemsSource="{Binding Teams}"

AllowMultipleSelection="True"

ItemTemplate="{StaticResource MultiSelectComboTemplate}"

DropDownClosed="_cboTeams_DropDownClosed"

Command="{Binding ElementName=_cboTeams, Path=DataContext.SelectCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Self}}">

</telerik:RadComboBox>

Two questions.

1. I find that I need to get the most current item selected. With that said, how do I get the most current row(either by Id or by Index)

2. Second, my radcombobox has two types of "events" i need to worry about. One is when the row is clicked and highlighted and another one when user clicks the checkbox itself. If I click the row , I manually search for the item on the Viewmodel and mark the item checked to check the checkbox of that row. My issue is, if the user clicks the checkbox, I can trigger the command of the viewmodel and I will pass the s

private void OnSelect(object sender)

{

if (sender is CheckBox)

{

var obj = sender as CheckBox;

var team = (LabeledValueCheckBox)obj.DataContext;

if (team.IsSelected)

{

if (team.Id == 0)

{

foreach (var t in this.Teams)

{

t.IsSelected = true;

}

else

{

foreach (var t in this.Teams)

{

t.IsSelected = false;

}

else

{

var obj = sender as RadComboBox;

var contxt = (AddFirmViewModel)obj.DataContext;

var selectedTeams = obj.SelectedItems;

if(obj.SelectedItems == null)

{

foreach(LabeledValueCheckBox t in obj.ItemsSource)

{

if (t.IsSelected)

{

selectedTeams.Add(t);

}

if (selectedTeams != null)

{

if (selectedTeams.Contains(contxt.Teams[0]))// select all

{

foreach (var t in contxt.Teams)

{

t.IsSelected = true;

selectedTeams.Add(t);

}

else

{

foreach (var t in contxt.Teams)

{

var exists = selectedTeams.Contains(t);

if (exists)

{

t.IsSelected = true;

}

else

{

t.IsSelected = false;

}

SelectPressed?.Invoke(this, new EventArgs());

}

ComboBox

answered on 15 Jul 2019

2 answers

139 views

Cannot edit Dockresizer

Hi,

I'm trying to change the borderbrush of the Dockresizer.

What I found out, is that the dockresizer is part of the RadSplitContainer.

I cannot create a template copy of that control because Blend throws an error (btw. I can create copies of other telerik controls like documentmanager).

Any ideas?

Docking

answered on 15 Jul 2019

1 answer

104 views

Only list entries for the RadAutoCompleteBox

Is it possible to allow only list entries for the RadAutoCompleteBox? As Items Source I have bound an ObservableCollection.

AutoCompleteBox

answered on 14 Jul 2019

1 answer

278 views

Custom command in context menu of PDF viewer (MVVM)

Hello,
I would like to ask about context menu of PDF viewer.

So, I have PDF viewer (which is located in some UserControl), it works fine. In my app I allow to user creating of custom bookmarks - just some name and page number. One of the ways, how can user create own bookmark - right click and choose create bookmark in context menu. To create this I would like to use custom RelayCommand, which is in ViewModel of MainWindow and also uses some properties from ViewModel of MainWindow.

So, there is some problem. Since PdfViewer has it own DataContext (Command Descriptors), I can't use PlacementTarget to get some information from Window/UserControl DataContext (I tried relative source - it doesn't work). I found a solution - I created addition class with own RelayCommand, that works with STATIC variables (instance of PDF viewer to get current page) and methods (to create bookmark) from ViewModel. But I really dont like it really this solution.

So, I would like to ask you, how can I use my custom command from ViewModel in context menu of Pdf viewer? Or at least how can I pass CurrentPageNumer as argument, when I click on my custom menu item (command from custom class, which is initialized as static resource) in contextmenu of PDFviewer?

Now it looks like that:
<telerik:RadMenuItem Header="Create Custom Bookmark" Command="{Binding SomeCommand, Source={StaticResource customClass}}"
Visibility="Visible" >

Thank you in advance!
Best regards,
Alexander

PDFViewer

answered on 12 Jul 2019

1 answer

94 views

How to use custom operators?

Hi guys,

I want to make ExpressionEditor supports custom operators, and use those operators to replace existing one. For example, I want to use "!=" instead of "<>" for "not equal", and use "&&", "||" accordingly. I read the documentation and know how to customize the nodes in the tree, but how about features related to parsing? How to let the parser know the custom operators we defined?

PS: I'm using the latest WPF controls.

ExpressionEditor

answered on 11 Jul 2019