The following code shows how to group by two columns (“Country” and “City”).
((GridViewDataColumn)ASPxGridView1.Columns["City"]).GroupBy(); ASPxGridView1.GroupBy(ASPxGridView1.Columns["Country"], 0);
To Ungroup:
((GridViewDataColumn)ASPxGridView1.Columns["City"]).UnGroup(); ASPxGridView1.UnGroup(ASPxGridView1.Columns["Country"], 0);
