Currently, the ControlPanelItem expose only standard CLR properties. Make them DependencyProperties so they can be data bound.

The exception message is: "... is not a valid metadata type for type filtering operations. Type filtering is only valid on entity types and complex types." The exception is observed when using AggregateFunctions and setting up the data with EntityFramework. 

PropertyChanged event is called for a cell with nullable value when is in edit mode and click on another cell

Provide option to enable changing the column display index when dragging group cell into the header row.

Available in the 2017 R1 Release (2017.1.117).

Please provide a property that will allow a message to be displayed to users when RadGridView is empty. 
Some users perception is that the program is not working properly when there is no data in the grid view so displaying a user-friendly message can be a useful way of preventing inquires and complaints.

The problem occurs from 2014 Q2.  It should be resolved with lib version 2014.3.1319.

See this thread for more info:
http://www.telerik.com/forums/alternaterowbackground-doesn't-merged-with-rowstyle

It's  really common scenario, because a standard WPF DataGrid works like this.

 

Available in LIB version 2016.3.1128, it will be also available in the 2017 R1 Release.

If you have the following model, the columns that show the Test and Date properties (in the derived class) cannot be sorted or filtered.

 

To work this around, set the IsCustomSorting property of the corresponding columns and implement a custom sorting in the Sorting event of RadGridView.

Implement a way to group columns cells vertically.

Using SearchPanel and getting search results highlighted is a very usefull feature. However at the moment it is only possible to change the color of the highlight-portion of HighlightTextBlock. It would be nice if I have more formatting options like:

• HighlightFontWeight
• HighlightFontStyle

etc. So if I search for "find" I get results like "find me"

Version 2016.3.1024.45 (from nuget packages, if that matters)
Adding a new row with the "Add new row" button and then clicking the row indicator results in an extra row. Demo: http://recordit.co/Nn8y2z2YpI

Available in the R1 2017 SP1 Release.