The dialog and the watermark stating that no license is found are displayed, even when the license key is installed properly. This happens in addin projects, like Excel VSTO Add-in.
To workaround this use the TelerikLicensing.Register method to install your license script key.
public MyWpfUserControl()
{
TelerikLicensing.Register("your-script-key");
InitializeComponent();
}
In your Demo select PivotGrid - OLAP Support
1. sort rows by "Reseller Order Quantity"
2. reopen sorting panel
-> another option will be selected
In the sorting options dialog, the selected column in the sorting options appears to be set to a wrong value upon reopening the dialog.
In your demo select PivotGrid - Olap Support
1. add "Exchange Rates: Average Rate" to values
2. sort rows by "Reseller Order Quantity"
-> The grid will be empty
If the list is filtered by "Total Reseller Order Quantity != 0", results will show again. Thus, sorting by a column which contains rows without values seems to be faulty.
Currently filtering with virtualized RadComboBox is not supported as the filtering feature works with the containers (changes their Visibility).
The following exception is raised when adding a ColumnGroupDescriptor to the GroupDescriptors property of a RadGridView. This bug is data specific and I've only been able to duplicate it with a large data set but the issue seems like it could be addressed without the actual data, given that the code causing the issue is apparently passing a pixelWidth < 0.
System.ArgumentOutOfRangeException: 'The parameter value must be greater than zero.
Parameter name: pixelWidth'
Exception when resizing column with width set to star and min-width set to 0.
Set the properties to the above and resize a column to 0 and then to the original width -> an exception occurs.
The operating system region and language needs to be set to Japanese.
RichTextBox seems to have several issues with Japanese, but being locked from visibility or edit is the biggest one.
To recreate, start typing in Japanese, push the "right" arrow after selecting the IME option desired, then hit "spacebar." This seems to duplicate the text, then when trying to continue to type into the text field the text is no longer visible (yet the IME does display).
The native WPF RichTextBox has no issues (and also supports partial selection, etc.).
I've attached a video to show the behavior with 2025 Q1 telerik.
*note:* This is on a machine with NVIDIA graphics. I mention this as there may be some issues with RichTextBox and the hardware... When I'm in a virtual machine with a completely Japanese environment and virtual graphics driver, there is NO text visible at all when trying to type into the RichTextBox. Works fine with other controls and wpf RichTextBox.
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()
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>
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.
// ***********************************************************************
// some other content here
// some other content here
// ***********************************************************************
public class TestClass
{
}