I am using the EnableHeaderCheckBox to have a "Select All" checkbox in the header of my boolean column. I have the radgridview.EnableSorting = true and they work just fine, but when I click the "Select All" header checkbox and then try to sort any column, they do not sort at all. It does nothing. I am using Telerik UI for Winforms version 2017.2.502. Can someone please help?