Questions on UI for WPF Forum

1 answer

94 views

I'm having an issue where I sometimes get two groups with a key of empty string when I add a grouping to my data.

It's really important that these group keys be unique because I'm doing some fairly complicated grid navigation in hierarchical grids and I rely on that key being unique so I can programatically make decisions about where to move focus.

Is there a grouping maximum or something that I'm missing, or is this a Telerik bug?

GridView

answered on 16 Jul 2019

4 answers

163 views

Set the AutoCompleteMode in a style generates an error in my XAML

Hi,

I have following style applied for all my RadMultiColumnComboBox controls (in the app.xaml):

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

<Setter Property="AutoCompleteMode" Value="Search"/>

<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="Red"/>

</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}"/>

With this style applied, I get this error in my XAML files (see attached file): The element "[RadMultiColumnComboBox]" could not be displayed because of a problem with System.Windows.StaticResourceExtension: CollectionView must have value. Parameter name: collectionView.

The error is provoced by the setter of the AutoCompleteMode. The error disappears when this setter is deleted.

Setting the AutoCompleteMode directly on a RadMultiColumnComboBox (with the style applied) does not cause any problems.

Any ideas ??

Regards,
Hans

MultiColumnComboBox

answered on 16 Jul 2019

6 answers

422 views

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

245 views

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

201 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

115 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

253 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

692 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?

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

Name="ResultSetReportTreeView"<br>

IsVirtualizing="True" <br>

ItemDoubleClick="RadTreeViewItemDoubleClick"<br>

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

br

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

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

ItemsSource="{Binding ResultSetReportNodes}"<br>

SelectionMode="Single" ><br>

<br> <telerik:RadTreeView.Resources><br>

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

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

</Style><br>

</telerik:RadTreeView.Resources><br>

<telerik:RadTreeView.ItemTemplate><br>

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

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

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

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

<br>

<StackPanel.ContextMenu><br>

<ContextMenu><br> <br> <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}"

><br>

</MenuItem><br>

</ContextMenu><br>

</StackPanel.ContextMenu><br>

</StackPanel><br>

<br>

</HierarchicalDataTemplate><br>

</telerik:RadTreeView.ItemTemplate><br>

</telerik:RadTreeView><br>

</Grid><br>

</telerik:RadExpander><br></p>

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

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