When you place a DataTrigger whithin a CellTemplate, it is being ignored by RadGridView for WPF

Workaround ( until fixed ) - set the ContentTemplate of the cell via Style in a static resource instead.

The sort index will not be displayed when applying a custom sorting without adding a SortDescriptor, You can consider implementing Custom Sorting using the IComparable interface instead. As an example please refer to the Custom Sorting with IComparable WPF Demo. Using a generic SortDescriptor would also be an option. 
Please check our online documentation for a further reference: http://docs.telerik.com/devtools/wpf/controls/radgridview/sorting/custom

We are using Radgridview in our wpf application which is autogenerated using Class Models. When the number of columns are quite huge(more than 35-40 columns), the performance of the horizontal scrollbar is quite poor and even worst when the data on the Grid is huge. Infact the experience it gives while scrolling seems as if the scrollbar is continuously growing. I have tried the following settings on the RadGridView in the xaml but there is no significant improvement in the performance:

EnableColumnVirtualization="True" EnableRowVirtualization="True" VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.VirtualizationMode="Recycling" ScrollViewer.CanContentScroll="False" ScrollMode="Deferred"

GridView ColumnGroup Header does not refresh when bound to view model

This Style is not applied when Windows8 Theme is set for the GridView (only) - it works if an ApplicationTheme is set. 
<telerik:RadGridView  telerik:StyleManager.Theme="Windows8" Name="clubsGrid" .../>

<Style TargetType="telerik:GroupHeaderRow" telerik:StyleManager.BasedOn="Windows8">

<Setter Property="ShowGroupHeaderColumnAggregates" Value="True" />

<Setter Property="Background" Value="Red"/>

</Style>

ViewRow's background is not correctly colored when RadGridView is within RadBusyIndicator and it is busy. There is no problem if your are using GridViewLoadingIndicator.

1. Set RadGridView's setting DragElementAction="ExtendedSelect". 
2. Open a window on selecting a row.
3. Close the window, the RadGridView becomes ExtendedSelect.

Note: Most probably this problem is actually caused by a limitation in the Silverlight platform. Once a Window is shown, there is no way to detect that the mouse is released.

Hello Telerik  Team!

Are there any new informations concerning the below BUG?
(UniqueName-Property is causing binding errors) 
Is this fixed in one of the current versions? What are proper workarounds?

Identical Problem for Sylverlight:
http://www.telerik.com/community/forums/silverlight/gridview/gridviewdatacolumn-data-binding-to-uniquename---why.aspx

Regards Daniel
(DevCraft Customer)