Hi,
Please use the ListBoxSelection mode to make the Grid selectable only by rows and prevent selecting cells.
this.gridGroupingControl1.TableOptions.ListBoxSelectionMode = SelectionMode.MultiExtended;// Multiple rows can be selected
this.gridGroupingControl1.TableOptions.ListBoxSelectionMode = SelectionMode.One;// allow to select only one row at a time
Please let me know if you have any concerns
Regards,
Kalai