private void InitialiseGroupPanel()
 {
     GroupPanelData = new GroupPanelData()
     {
         allowColumnDragging = true,
         emptyPanelText      = "Drag a column header here to group by that column",
         visible             = true
     };
 }
 public void SetGroupPanelDataOption(GroupPanelData groupPanelData)
 {
     option("groupPanel", Utils.ToJSObject(groupPanelData));
 }