//Used to update the cell value immediately upon changing the value.
this.gridGroupingControl1.TableDescriptor.Fields["ColumnName"].ForceImmediateSaveValue = true;
this.gridGroupingControl1.GetTableDescriptor("ChildTable").Fields["ColumnName"].ForceImmediateSaveValue = true;
Please let us know if you have any other concern.
Regards,
Adhi.