Hi
Pravin, Thank you for your interest in Syncfusion products. Please refer the below code and image to select multiple columns. We cannot select multiple columns like multiple record selection using row header because the column header click is used for sorting purpose. Hence, this is the possible way to select multiple columns. Code Example : this.gridGroupingControl1.TableOptions.ListBoxSelectionMode = System.Windows.Forms.SelectionMode.None;
this.gridGroupingControl1.TableOptions.AllowSelection = GridSelectionFlags.Any;
Thanks,
AL.Solai.