Last Updated: 23 May 2024 18:40 by Alexandre

Hello, I tried to implement the sample application from your docs. (https://docs.telerik.com/devtools/winui/controls/raddatagrid/row-details)

But it seems to be not working, the detail area is not displayed completely. Only one column.

I have a similar behavior on another application.


  • .NET 7
  • Windows 11 Pro Version 23H2 (22631.3155)
  • Telerik WinUI 2.9.0

In Development
Last Updated: 15 May 2024 11:08 by ADMIN
When the RadPropertyGrid control displays nested objects and grouping is applied, expanding the inner group for the first time collapses the parent one. On a second expansion of the inner object, the parent group is not collapsed.
Last Updated: 07 May 2024 20:01 by ADMIN
Release 2.10.0 (2024 Q2)
Created by: Martin Ivanov
Comments: 0
Category: Chat
Type: Bug Report
A memory leak occurs when scrolling messages. Because of the UI virtualization the message visual gets reloaded on scrolling up and down, which subscribes them to a specific event, but the unsubscription doesn't always happen which brings the memory issue.
Last Updated: 07 May 2024 20:01 by ADMIN
Release 2.10.0 (2024 Q2)
The status indicator of the inline message is positioned on the left side of the message. It should be positioned below it. 
Last Updated: 13 Mar 2024 09:40 by ADMIN
Release 2.9.0
The touch pointer capture is never released when you swipe an item in order to show its swipe content. Because the touch capture is never released, the pointer released action is never fired and the drag/drop operation cannot finish. This leads to glitches in the item. Clicking in swipe content can make it disappear. Also, if you are on a device that support both mouse and touch, you can notice the issue by swiping with touch and then mouse move. The mouse/touch device is captured and you will see that item moves on mouse move even if the left button is not pressed.
Last Updated: 11 Mar 2024 09:07 by ADMIN
Created by: Stenly
Comments: 2
Category: NumericBox
Type: Bug Report
The RadNumericBox control does not accept decimal values.
Last Updated: 11 Mar 2024 09:04 by ADMIN
Created by: Stenly
Comments: 2
Category: NumericBox
Type: Bug Report
The RadNumericBox control prevents the user from inputting negative values.
Last Updated: 15 Feb 2024 15:34 by Martin Ivanov

The field filters in the DataGridNumericalFilterControl of DataGridNumericalColumn are using RadNumericBox controls for the input visuals. By default RadNumericBox is limited to values between 0 and 100, which means you cannot enter values outside of this range.

To work this around, you can re-template the DataGridNumericalFilterControl in order to set the Minimum and Maximum properties of the RadNumericBox element to NaN.

    xmlns:local="using:App3" xmlns:telerikDataGrid="using:Telerik.UI.Xaml.Controls.Grid.Primitives" xmlns:telerikInput="using:Telerik.UI.Xaml.Controls.Input">
                <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
                <ResourceDictionary Source="ms-appx:///Telerik.WinUI.Controls/Themes/Generic.xaml"/>

            <Style TargetType="telerikDataGrid:DataGridNumericalFilterControl">
                <Setter Property="Template">
                        <ControlTemplate TargetType="telerikDataGrid:DataGridNumericalFilterControl">
                                    <RowDefinition Height="Auto"/>
                                    <RowDefinition Height="Auto"/>
                                <ComboBox x:Name="PART_OperatorCombo"
                                          ItemsSource="{Binding OperatorsList}"
                                          SelectedItem="{Binding FilterDescriptor.Operator, Mode=TwoWay, Converter={StaticResource FilterOperatorConverter}}"
                                <telerikInput:RadNumericBox x:Name="PART_ValueBox"
                                              Value="{Binding FilterDescriptor.Value, Mode=TwoWay}"
                                              Grid.Row="1" Margin="0 10 0 0"/>

Last Updated: 07 Feb 2024 11:21 by Martin Ivanov

Dynamically changing the Header of a RadDataGrid column is clearing the header visual's content. This means that you no longer see the header. To reproduce this the SizeMode of the column should be set to Fixed.

To work this around, instead of changing the Header of the column, you can assign the Header initially to a visual element - like TextBox - and change its content (like the Text property). Or alternatively, avoid the Fixed SizeMode.

Last Updated: 26 Jan 2024 14:32 by Martin Ivanov
A memory leak occurs and the memory constantly increases each time the ItemsSource of the RadCartesianChart's series is set to another collection.
Last Updated: 16 Jan 2024 11:22 by Mike
Reordering columns via drag and drop throws an exception.
Last Updated: 02 Jan 2024 11:32 by Stenly
Created by: Stenly
Comments: 0
Category: Map
Type: Bug Report

Exception is raised when zooming is performed.

Last Updated: 21 Sep 2023 15:07 by Martin Ivanov
This can be reproduced if you place a ComboBox in the RowDetailsTemplate which selection is bound to a property of the data row's model. Changing the selection in the ComboBox for one row and then expanding another row, will set the selection property of the previous row model to the value from the new model.
Last Updated: 18 Sep 2023 16:27 by Rick

Hi friends,


  my custom tooltips never work on the first bar only of the BarSeries, here is a simple example showing this behavior.  There is important data for me in that column, so let's hope it's possible to resolve this.  Many thanks!

Last Updated: 13 Sep 2023 15:01 by Martin Ivanov

Remove the space reserved for the sort indicator in the column header, when CanUserSort is False and therefore the sort indicator is not displayed. The current behavior prevents the user to easily center the header text.

To work this around, you can edit the ControlTemplate of DataGridColumnHeader. In the template, you can update the Visibility of the TextBlock with x:Name set to "SortIndicator" when CanUserSort is False.

Last Updated: 05 Sep 2023 15:03 by Martin Ivanov
If you change the current date and then click on the time segment of the control that allows you to select the time, the date segment is lost. The opposacite is true also - the selected time is lost if you click in the date segment.
To set the correct DateTime, you should first select the date or time, click OK, open the drop down again, select the other component (date or time) and click OK again.
Last Updated: 25 Aug 2023 15:04 by ADMIN
Created by: wu
Comments: 1
Category: UI for WinUI
Type: Bug Report

when the datagrid group the column ,the group header indent,but the general row don't indent .

look the following file.

Last Updated: 07 Jul 2023 13:21 by ADMIN
Release 2.7.0
Created by: Rick
Comments: 11
Category: TimeBar
Type: Bug Report


  I am planning to build one of the pages of my software around the amazing Timebar control but I experience many issues.  With this code:

<Grid Height="200">
    <tcontrols:RadTimeBar x:Name="timeBar" Height="150">
            <tdataViz:YearInterval />
            <tdataViz:MonthInterval />
            <tdataViz:WeekInterval />
            <tdataViz:DayInterval />

            <tdataViz:RadLinearSparkline x:Name="timeSparkline"/>
Many issues happen:

1. The control crashes if the height is too small
2. The control crashes in Visual Studio hot Reload if one of the width or height is changed (so the value becomes 0 or small when the int number is deleted or changed)
3. The control crashes the software if my MainWindow automatically navigates to a page with the TimeBar control in it.  (Frame.Navigate(typeof(Views.PageWithTimeBar));).  The workaround was to add a 200ms delay in the page load...
4. The control crashes if there is no width, so it prevents me to make it full width of my grid which is what I need to keep my software dynamically responsive.  Hard coding a width in the control defeats the purpose of the Grid layout auto width capabilities and will be a problem with devices with different resolution.

The TimeBar is really an amazing and very original control.  I have bought Telerik in big part for it, I really hope that you will be able to address these issues quickly as my software launch date is approaching.  Thank you very much!
Last Updated: 12 Jun 2023 06:17 by ADMIN
Release 2.7.0
When the RadDataGrid is placed inside a Grid's RowDefinition with Auto Height, the row for the last item from the ItemsSource is not rendered. 
Under Review
Last Updated: 09 Jun 2023 14:21 by ADMIN

Hi Support


I'm using RadDataGrid on several pages in my application. There a pages where the scrollbar does not appear. On some pages it works.

The structure of the pages is similar. What are your suggestions to look for.




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