Currently when RadGridView contains multiple header rows and its layout is being saved, after loading it the grid shows "No data to display" although it is binded to a data source. Add a functionality to support saving the layout when RadGridView contains multiple header rows
Duplicate of: http://feedback.telerik.com/Project/154/Feedback/Details/112135-add-radgridview-save-and-load-layout-to-work-in-all-view-definitions