Hi James,
To clear the grid without modifying the underlying datasource, you can call the GridColumnDescriptorCollection.Clear method
//For the Clear the Column collection in a grid.
this.grid.TableDescriptor.Columns.Clear();
//Reset the Column collection in a grid.
this.grid.TableDescriptor.Columns.Reset()
Sample:
http://www.syncfusion.com/Support/user/uploads/GGCUpdate_74da1a58.zipBest Regards,
Haneef