private void BtnDelete_Click(object sender, EventArgs e)
 {
     try
     {
         var rslt = MessageBox.Show(Resources.msgUserGroupDeleteConfirm, Resources.AppName,
                                    MessageBoxButtons.YesNo, MessageBoxIcon.Question);
         if (rslt == DialogResult.Yes)
         {
             using (var dc = new DBAuditDataContext())
             {
                 dc.ProDeleteUserGroup(ComboName.Text);
             }
             MessageBox.Show(Resources.MsgUserGroupDeleted, Resources.AppName, MessageBoxButtons.OK,
                             MessageBoxIcon.Information);
             Close();
             new FrmModifyUserGroup().Show();
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }