public void call_center_delete(int ID)
 {
     call_center.Delete(ID);
     Insert_call_center_GridView.DataBind();
     Update_call_center_GridView.DataBind();
     Delete_call_center_GridView.DataBind();
 }
 public call_center call_center_insert()
 {
     call_center.address_id       = Convert.ToInt32(Insert_address_id_txt.Text);
     call_center.call_center_name = Insert_call_center_name_txt.Text;
     call_center = call_center.Insert(call_center);
     Insert_call_center_GridView.DataBind();
     Update_call_center_GridView.DataBind();
     Delete_call_center_GridView.DataBind();
     return(call_center);
 }
 public call_center call_center_update(int ID)
 {
     call_center = call_center.Select(ID);
     call_center.call_center_id   = Convert.ToInt32(Update_call_center_id_txt.Text);
     call_center.address_id       = Convert.ToInt32(Update_address_id_txt.Text);
     call_center.call_center_name = Update_call_center_name_txt.Text;
     call_center.Update(call_center);
     Insert_call_center_GridView.DataBind();
     Update_call_center_GridView.DataBind();
     Delete_call_center_GridView.DataBind();
     return(call_center);
 }