Problem
- Devexpress WPF GridControl Grouping Problem
- Problem WPF DXGrid with CollectionViewSource
- GridControl can't grouping
- WPF DataGrid through EF Can't support grouppoing
- DXGrid grouping problem with CollectionViewSource
- Devexpress WPF GridControl have problem with grouping
- Grouping Columns not working in dxg:GridControl
Solution
1- It has a simple, just add CollectionViewType to CollectionViewSource like below
<CollectionViewSource CollectionViewType="ListCollectionView" x:Key="X" />2- Don't use of CollectionViewSource and set directly the Grid ItemSource.
Reference
HelpLink: http://www.devexpress.com/Support/Center/p/Q382933.aspx
