Questions on UI for WPF Forum

6 answers

444 views

[Solved] Scrolling problem in TreeListView when drag-and-drop enabled

In your standard TreeListView sample program, ExpandItemsIntoView, scrolling stops working if I add drag-and-drop parameters as follows:

<telerik:RadTreeListView x:Name="RadTreeListView1"

GroupRenderMode="Flat"
ItemsSource="{Binding}"
Grid.Row="1"
telerik:DragDropManager.AllowDrag="True"
telerik:DragDropManager.AllowCapturedDrag="True">

Is that a problem with the control, or is something else needed to ensure scrolling works? I have this problem in a much more complex example, but I was able to reproduce it in your sample.

TreeListView

answered on 16 Jul 2019

4 answers

268 views

[Solved] Get column and row size in order to center shape in a spreadsheet

Hello

I'm trying to add a picture to a spreadsheet. There is not problement to add the picture, but I'm trying to center it into a merge cell and I can't get the size.

I did the code bellow :

Private Sub addLogo(ByRef worksheet As Worksheet, ByVal columnCount As Integer, ByVal rowCellIndex As Integer, ByVal columnCellIndex As Integer)

Dim image As New FloatingImage(worksheet, New CellIndex(columnCellIndex, rowCellIndex), 0, 0)

Using stream As Stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(String.Concat(Assembly.GetExecutingAssembly().GetName().Name, ".MyLogo.png"))

image.ImageSource = New ImageSource(stream, "png")

image.LockAspectRatio = True

Dim ratio As Double = worksheet.Rows(rowCellIndex).GetHeight().Value.Value / image.Height

image.Height = image.Height * ratio

image.Width = image.Width * ratio

image.OffsetX = worksheet.Columns(columnCellIndex, columnCellIndex + columnCount - 1).GetWidth().Value.Value - image.Width

End Using

worksheet.Shapes.Add(image)

End Sub

the worksheet.Rows(rowCellIndex).Getheight().Value.Value return 20 each time, unless the row is highter

and the worksheet.Columns(columnCellIndex, columnCellIndex + columnCount - 1).GetWidth().Value.Value return 65 each time, for one or more column.

So I don't know the right command to get the height and width of my merge cell, could you help me ?

Thanks

J-Christophe

Spreadsheet

answered on 16 Jul 2019

1 answer

214 views

How to disable Boundind Box for selected Shape

Hi team,

Let's say I have a set of shapes selected, a unique bounding box including all selected shapes is rendered.
is it possible to hide the bounding box? Or is it possible to customize the highligh of the single selected shapes?

I attached a sample picture (taken from powerpoint)

Thanks in advance

Diagram

answered on 16 Jul 2019

3 answers

129 views

Weeknumbers won't update

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

268 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

722 views

[Solved] 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

1.8K+ views

[Solved] 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

4.1K+ 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

3.7K+ 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

168 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