private void RequestRoleMenuAuthoritiesData()
 {
     try
     {
         this.gcRoleMenuAuthority.DataSource = null;
         this.gcRoleMenuAuthority.DataSource = _bll.GetRoleMenuAuthorities(new RoleMenuAuthoritiesVM {
             RoleName = this.teQueryRole.Text.Trim(), MenuName = this.teQueryMenu.Text.Trim()
         });
     }
     catch (Exception ex)
     {
         XtraMessageBox.Show(ex.ToString(), "提示", MessageBoxButtons.OK);
     }
 }