Add the Filter Row filter mode functionality to VirtualGrid similar to the GridView.

The Multiple and Extended selection modes allow you to select and deselect multiple items. The deselection of items doesn't work.

Add an event (for example named QueryCursor) to the RadVirtualGrid control, that is invoked each time the control tries to replace the Mouse.OverrideCursor static property's value. The event should give information about the new cursor (also possibly for the old one) and it should allow the developer to replace the cursor with its own instance. 

Add a vertical text alignment option for the text in the cells and headers of RadVirtualGrid.

Add the option for the user to be able to double click on the resize handle displayed when the mouse is between two headers. On double click, the associated column should auto-resize so that its width fits the header text's length.

This feature is available in RadGridView for WPF.

Expose a MemberName property that gets the memberName value assigned in the ColumnSortDescriptor's constructor. At first sight it seems that the option should be read-only, but we can explore the options to allow setting it as well.