In Development
Last Updated: 06 Mar 2026 15:02 by Alex
Scheduled for 2026 Q2
If you focus an item, you can resize it with "Ctrl+Arrow keys". If you for example press "Ctrl+Arrow up", the items vertical size shrinks. If you do that repeatedly, it becomes less than 0. If you want to increase the size again, you first have to undo all that negativity, before the items grows again. Ideally, the code should only reduce "ColSpan" and "RowSpan" if its current value is greater than 1.
In Development
Last Updated: 05 Mar 2026 15:56 by Kris
Scheduled for 2026 Q2

There is an undocumented breaking change in the selection behavior of the v13.0.0 TreeView component that prevents us from upgrading from v12.3.0.

In v12.3.0, selecting a TreeView checkbox does change the TreeView item selection or trigger the selection change events. In v13.0.0, checking an item does also change the selection. The v12.3.0 behavior is important for our implementation because selecting a TreeView item in our application fetches data from a database and we do not want the performance overhead of those calls when checking an item---we want the user to be able to select multiple items and only then explicitly fetch the data for all of them.

I've created a minimal example here: https://blazorrepl.telerik.com/cqYdEePd40Zq3ava43. You can see the behavior differences when switching between versions.

Please let me know if there's any additional information we can provide. A workaround to this behavior would be appreciated. Thank you!

In Development
Last Updated: 26 Feb 2026 07:02 by ADMIN
Scheduled for 2026 Q2
In our serverside blazor application we use the Telerik's DateTimePicker. When we type values in to the date time picker control, it jumps to the next section or to the end before completing the currect section. We use the format 'yyyy-MM-dd HH:mm'

It does not happen always and I think it is happenning when the internet connection is slow and it shows a Javascript error as well (screenshots below)
In Development
Last Updated: 20 Feb 2026 14:50 by ADMIN
Scheduled for 2026 Q2
Created by: Michal
Comments: 3
Category: UI for Blazor
Type: Bug Report
0

Hello,

 at version 12.3.0 TelerikFilter is crashing "at load". Prior this version, same markup = ok.

Error: System.InvalidOperationException: Object of type 'Telerik.Blazor.Components.TelerikFilter' does not have a property matching the name 'ValueChanged'.

also in demo:

https://www.telerik.com/blazor-ui/documentation/components/filter/integration

usage:

<TelerikFilter @bind-Value="@AdvancedFilterValue">
	<FilterFields>
		@foreach (var it in GridDef.ColStore.Where(x => x.Verejny == true))
		{
			<FilterField Name="@it.FldName" Type="@it.FldType" Label="@it.VerejnyNazev"></FilterField>
		}
	</FilterFields>
</TelerikFilter>