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Unplanned
Last Updated: 25 Apr 2025 13:12 by Stenly
MultiColumnComboBox: Add an option to prevent the removal of the selected item when pressing the Delete or Back key
Created by: Stenly
Comments: 0
Category: MultiColumnComboBox
Type: Feature Request
1
MultiColumnComboBox: Add an option to prevent the removal of the selected item when pressing the Delete or Back key
Currently, when an item is selected and the RadWatermarkTextBox (search box) is focused, pressing the Back or Delete key will remove the selected item. This logic is encapsulated, and it cannot be altered. We could add an option to control this behavior.
Unplanned
Last Updated: 25 Apr 2025 05:11 by Alexander
DragBehavior: GetPerMonitorDPIAwareScaleFactor throws an exception when the parameter visual is null and crashes the application
Created by: Alexander
Comments: 0
Category: UI for WPF
Type: Bug Report
0
DragBehavior: GetPerMonitorDPIAwareScaleFactor throws an exception when the parameter visual is null and crashes the application
GetPerMonitorDPIAwareScaleFactor throws an exception when the parameter visual is null and crashes the application.
Pending Review
Last Updated: 24 Apr 2025 15:09 by Darren
Visual Studio 2022 theme
Created by: Darren
Comments: 0
Category: UI for WPF
Type: Feature Request
1
Visual Studio 2022 theme

Are there any plans to release a Visual Studio 2022 theme for WPF?  The Winforms UI has this theme, and I would like to have it for WPF as well.

Are there other themes on the roadmap that you could share?

 

Thanks!

--Darren

In Development
Last Updated: 23 Apr 2025 14:25 by ADMIN
Buttons: A System.FormatException is raised when using the RadDropDownButton element with DropDownPlacement="Top" and Windows 11 theme is applied with the culture being set to "ar-EG"
Created by: Stenly
Comments: 0
Category: Buttons
Type: Bug Report
1
Buttons: A System.FormatException is raised when using the RadDropDownButton element with DropDownPlacement="Top" and Windows 11 theme is applied with the culture being set to "ar-EG"
When the DropDownPlacement property of the RadDropDownButton element is set to Top and the Windows 11 theme is used, a Setter in the default ControlTemplate tries to set the VerticalOffset of the drop-down Popup element. This is done via a converter (of the type of MultiplyValueConverter), to which a "-1" is passed as a ConverterParameter. In the Convert method of the converter, the native System.Convert.ToDouble method tries to convert the ConverterParameter to the type of double. Internally, the Convert.ToDouble method uses the current culture when converting a string to a double.

This is observed when using a different culture, for example, "ar-EG".
Unplanned
Last Updated: 23 Apr 2025 13:37 by ADMIN
VirtualGrid: Wrong column is filtered when a new ItemPropertyInfo is inserted in the DataProvider at runtime
Created by: Martin Ivanov
Comments: 6
Category: VirtualGrid
Type: Bug Report
2
VirtualGrid: Wrong column is filtered when a new ItemPropertyInfo is inserted in the DataProvider at runtime
The FilteringControl of a column filters a wrong column when an ItemPropertyInfo is inserted at runtime. The newly inserted property info should create a column placed between other columns (not at the end of the view). The new column filtering is wrong.
In Development
Last Updated: 23 Apr 2025 13:22 by ADMIN
SyntaxEditor: Wrong tagging/coloring of multiline comments with the CSharpTagger
Created by: Martin Ivanov
Comments: 0
Category: SyntaxEditor
Type: Bug Report
0
SyntaxEditor: Wrong tagging/coloring of multiline comments with the CSharpTagger
The CSharpTagger matches the following character combination as a multiline comment start - / * (slash and a start with a whitespace between). This causes wrong tags creation in scenarios where the * character is a part of a single line comment. The correct comment start and end should be /* and */.

In the following example, the beginning of the first single line comment is considered a multiline comment start, but since nothing closes it, the entire text is tagged and colored as a comment.

// ***********************************************************************
// some other content here
// some other content here
// ***********************************************************************

public class TestClass
{
}

Unplanned
Last Updated: 23 Apr 2025 13:02 by Martin Ivanov
WebCam: MF_E_SHUTDOWN exception may occur on unload or initialize of RadWebCam
Created by: Martin Ivanov
Comments: 0
Category: WebCam
Type: Bug Report
0
WebCam: MF_E_SHUTDOWN exception may occur on unload or initialize of RadWebCam

MF_E_SHUTDOWN error occurs in some cases when the camera MediaFoundation resources get released. This may happen on unloaded or initialized of the RadWebCam control.

Here is one of the exception stacktraces that may be observed:

Description: The process was terminated due to an unhandled exception.
Exception Info: System.Exception: Stop failed: MF_E_SHUTDOWN
   at Telerik.Windows.MediaFoundation.MediaFoundationHelper.ThrowOnHResultError(HResult hr, HResult expected, String message)
   at Telerik.Windows.MediaFoundation.BaseMediaFoundationPresenter.StopSession()
   at Telerik.Windows.Controls.RadWebCam.<Stop>b__38_0()

In Development
Last Updated: 23 Apr 2025 11:58 by ADMIN
GridView: NullReferenceException when automation peers creation goes over the MaxCachedPeersSize value (10,000) and the item type that populates the ItemsSource uses the 'record' modifier
Created by: Martin Ivanov
Comments: 0
Category: GridView
Type: Bug Report
4
GridView: NullReferenceException when automation peers creation goes over the MaxCachedPeersSize value (10,000) and the item type that populates the ItemsSource uses the 'record' modifier

NullReferenceException occurs when the the automation peers creation for the rows goes over 10,000 peers (the MaxCachedPeersSize setting of the GridViewDataControlAutomationPeer). The exception occurs only when the 'record' modifier is used in the class definition. For example:

public record class MyClass(int Id)
{
}

The exception stacktrace is:

System.NullReferenceException: 'Object reference not set to an instance of an object.'
peer was null.
Telerik.Windows.Controls.GridView.dll!Telerik.Windows.Automation.Peers.GridViewDataControlAutomationPeer.ClearPeer(Telerik.Windows.Automation.Peers.DataItemAutomationPeer peer)   Telerik.Windows.Controls.GridView.dll!Telerik.Windows.Automation.Peers.GridViewDataControlAutomationPeer.GetOrCreateItemPeer(object item, int index) Line 288 C#  Telerik.Windows.Controls.GridView.dll!Telerik.Windows.Automation.Peers.GridViewRowAutomationPeer.FindDataItemAutomationPeer(System.Collections.Generic.List<System.Windows.Automation.Peers.AutomationPeer> childPeers) Telerik.Windows.Controls.GridView.dll!Telerik.Windows.Automation.Peers.GridViewRowAutomationPeer.GetChildrenCore()

.

To work this around use the "class" modifier instead of "record". For example, instead of:

public record class MyClass(int Id)
{
}

Use:

public class MyClass
{
    public int Id { get; set; } 
}

 Or alternatively, increase the MaxCachedPeersSize value.

 

In Development
Last Updated: 23 Apr 2025 09:42 by ADMIN
ADMIN
PdfViewer: Glyph widths are not matched correctly when there is Differences array in simple font encoding
Created by: Tanya
Comments: 0
Category: PDFViewer
Type: Bug Report
3
PdfViewer: Glyph widths are not matched correctly when there is Differences array in simple font encoding 
As a result, the glyphs are not measured and positioned properly. The issue applies to the TrueType and Type1 fonts.
Unplanned
Last Updated: 23 Apr 2025 05:47 by Martin Ivanov
ComboBox: Initial selection doesn't work when SelectedValuePath is set with a Style DataTrigger which uses converter in its Binding and RadComboBox is placed in a DataTemplate
Created by: Martin Ivanov
Comments: 0
Category: ComboBox
Type: Bug Report
0
ComboBox: Initial selection doesn't work when SelectedValuePath is set with a Style DataTrigger which uses converter in its Binding and RadComboBox is placed in a DataTemplate
The initial selection doesn't work when RadComboBox is placed in a DataTemplate (examples: ContentControl.ContentTemplate, GridViewDataColumn.CellTemplate) and the SelectedValuePath property of the control is set in a Style DataTrigger. To reproduce this the Binding of the DataTrigger should use a converter.

To work this around avoid using a binding in a DataTrigger to set the SelectedValuePath. Set the property directly on the RadComboBox instance, or use another technique based on your requirements.
In Development
Last Updated: 22 Apr 2025 08:23 by ADMIN
MultiColumnComboBox: Glyph on the close button on the SearchAutoCompleteBoxItem element is not visible with the Material theme with Xaml assemblies
Created by: Stenly
Comments: 0
Category: MultiColumnComboBox
Type: Bug Report
0
MultiColumnComboBox: Glyph on the close button on the SearchAutoCompleteBoxItem element is not visible with the Material theme with Xaml assemblies
When using the Xaml version of our assemblies and the Material theme is set through the StyleManager, the glyph on the close button of each SearchAutoCompleteBoxItem element is not visible.
Declined
Last Updated: 22 Apr 2025 05:25 by ADMIN
RichTextBox: NullReferenceException on measure of the RadDocument after table rows were removed using the table.Rows.Remove method
Created by: Martin Ivanov
Comments: 1
Category: RichTextBox
Type: Bug Report
1
RichTextBox: NullReferenceException on measure of the RadDocument after table rows were removed using the table.Rows.Remove method

NullReferenceException is thrown when the document gets updated after TableRow objects were removed with the Remove method of the parent Rows collection of the Table.

The table.Rows.Remove method is not properly removing some of the rows.

Stacktrace:

Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.TableGridMeasurer.CalculateTableCellMinMaxWidths(Telerik.Windows.Documents.Model.TableCell cell, float availableWidth) Line 137 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.TableGridMeasurer.CalculateTableMinMaxWidths(Telerik.Windows.Documents.Model.Table table, float availableWidth) Line 165 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.TableGridMeasurer.MeasureAutoFit(Telerik.Windows.Documents.Model.Table table, float availableWidth) Line 229 C#
  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.Table.RecalculateColumnWidths(float measureWidth) Line 1151 C#
  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.Table.RecalculateTableGrid(float measureWidth) Line 1249 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.TableLayoutBox.MeasureOverride(Telerik.Windows.Documents.Model.SizeF availableSize) Line 265 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(Telerik.Windows.Documents.Model.SizeF availableSize) Line 933 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.Measure(Telerik.Windows.Documents.Model.SizeF availableSize) Line 836 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.SectionLayoutBox.MeasureOverrideInternal(Telerik.Windows.Documents.Model.SizeF availableSize) Line 721 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.SectionLayoutBox.MeasureOverride(Telerik.Windows.Documents.Model.SizeF availableSize) Line 468 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(Telerik.Windows.Documents.Model.SizeF availableSize) Line 933 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.Measure(Telerik.Windows.Documents.Model.SizeF availableSize) Line 836 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.DocumentLayoutBox.MeasureOverrideInternal(Telerik.Windows.Documents.Model.SizeF availableSize) Line 223 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.DocumentLayoutBox.MeasureOverride(Telerik.Windows.Documents.Model.SizeF availableSize) Line 150 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(Telerik.Windows.Documents.Model.SizeF availableSize) Line 933 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Layout.LayoutElement.Measure(Telerik.Windows.Documents.Model.SizeF availableSize) Line 836 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.Model.RadDocument.Measure(Telerik.Windows.Documents.Model.SizeF measureSize) Line 1515 C#  Telerik.Windows.Documents.dll!Telerik.Windows.Documents.UI.DocumentPrintLayoutPresenter.MeasureOverride(System.Windows.Size availableSize) Line 714 C#

To work this around, use the DeleteTableRow method of the RadDocumentEditor.

RadDocumentEditor documentEditor = new RadDocumentEditor(document);
documentEditor.DeleteTableRow(row);

In Development
Last Updated: 17 Apr 2025 12:57 by ADMIN
TreeListView: DataFormatString property of the columns is not applied on child rows
Created by: Stenly
Comments: 2
Category: TreeListView
Type: Bug Report
4
TreeListView: DataFormatString property of the columns is not applied on child rows

Currently, the DataFormatString property of the columns is applied only to the top-level rows and not to the child ones.

To work this around, create a new DataTemplate for the CellTemplate property of the column and set the StringFormat property of the Binding instance for the element that will be used to display the cell's value in view mode.

<telerik:GridViewDataColumn.CellTemplate>
    <DataTemplate>
        <TextBlock Text="{Binding MyPropertyValue, StringFormat=N2}"/>
    </DataTemplate>
</telerik:GridViewDataColumn.CellTemplate>

 

Unplanned
Last Updated: 16 Apr 2025 09:36 by Stenly
GridView: CellTemplate can sometimes not get applied when changing the columns display indexes and applying grouping
Created by: Stenly
Comments: 0
Category: GridView
Type: Bug Report
1
GridView: CellTemplate can sometimes not get applied when changing the columns display indexes and applying grouping

In the case where some of the columns are hidden and all of the columns' display indexes are changed, applying grouping could result in some of the cells from the columns that have custom CellTemplate to not receive it.

To work this around, you could manually change the widths of the columns by iterating the Columns collection as shown below:

foreach (var column in this.GridView.Columns)
{
    GridViewLength length = column.Width;

    if (length.IsAbsolute)
    {
        column.Width = new GridViewLength(length.Value + 0.00001);
    }
}

In Development
Last Updated: 16 Apr 2025 09:04 by ADMIN
Map: Add Language property support in AzureMapProvider
Created by: Stenly
Comments: 2
Category: Map
Type: Feature Request
1
Map: Add Language property support in AzureMapProvider
Add language property support for AzureMapProvider

Workaround:
Create a custom provider with a custom source, and on the GetTile method of the custom source, you can override the query to contain the language parameter.
Unplanned
Last Updated: 15 Apr 2025 09:26 by Martin Ivanov
VirtualGrid: Allow auto-fit for the column headers on double click on the column resize handle
Created by: Martin Ivanov
Comments: 0
Category: VirtualGrid
Type: Feature Request
0
VirtualGrid: Allow auto-fit for the column headers on double click on the column resize handle
Add the option for the user to be able to double click on the resize handle displayed when the mouse is between two headers. On double click, the associated column should auto-resize so that its width fits the header text's length.

This feature is available in RadGridView for WPF.
Unplanned
Last Updated: 15 Apr 2025 09:16 by Martin Ivanov
VirtualGrid: Add vertical alignment option for the texts in the data and header cells
Created by: Martin Ivanov
Comments: 0
Category: VirtualGrid
Type: Feature Request
0
VirtualGrid: Add vertical alignment option for the texts in the data and header cells
Add a vertical text alignment option for the text in the cells and headers of RadVirtualGrid.
Unplanned
Last Updated: 14 Apr 2025 14:48 by Stenly
GridView: Applying grouping, filtering, and sorting, prevents selection of rows when SelectionMode="Extended" and SelectionUnit="Mixed"
Created by: Stenly
Comments: 0
Category: GridView
Type: Bug Report
1
GridView: Applying grouping, filtering, and sorting, prevents selection of rows when SelectionMode="Extended" and SelectionUnit="Mixed"
When a RadGridView is filtered, grouped, and sorted, some of the rows cannot be selected when the SelectionMode is set to Extended and the SelectionUnit is set to Mixed.
Declined
Last Updated: 14 Apr 2025 12:30 by ADMIN
GridView: Placing a RadGridView inside a RadDocking that has its theme set to Windows 11 causes the cells to look merged after editing them
Created by: Stenly
Comments: 1
Category: GridView
Type: Bug Report
0
GridView: Placing a RadGridView inside a RadDocking that has its theme set to Windows 11 causes the cells to look merged after editing them

If a RadDocking has its theme set to Windows 11 via the StyleManager.Theme attached property, placing a RadGridView inside (styled with a different theme, such as Office_Black, Summer, etc.) will cause its cells to look merged after performing an edit operation.

As a workaround, the RowHeight and the FontSize properties of the RadGridView instance can be used to resolve this.

Duplicated
Last Updated: 14 Apr 2025 07:55 by ADMIN
ChartView: Add WaterfallSeries
Created by: Stenly
Comments: 0
Category: ChartView
Type: Feature Request
0
ChartView: Add WaterfallSeries
Currently, the RadChartView component does not have a waterfall series similar to the one that is provided by the Telerik UI for WinForms. We could add support for this type of series.
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