partial void DeletetblSys_MenuChoice_Group_Matrix(tblSys_MenuChoice_Group_Matrix instance);
 private void detach_tblSys_MenuChoice_Group_Matrixes(tblSys_MenuChoice_Group_Matrix entity)
 {
     this.SendPropertyChanging();
     entity.tblSys_MenuChoice = null;
 }
 partial void InserttblSys_MenuChoice_Group_Matrix(tblSys_MenuChoice_Group_Matrix instance);