private void llAdd_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
     using (var mForm = new 添加消费卡())
     {
         mForm.ShowDialog();
         dgvCards.DataSource = new T_CardsTableAdapter().GetData();
     }
 }
 private void dgvCards_CellContentClick(object sender, DataGridViewCellEventArgs e)
 {
     if (e.RowIndex < 0)
     {
         return;
     }
     if (e.ColumnIndex == dgvCards.Columns["ColDel"].Index)//删除
     {
         if (MessageBox.Show("确认删除该消费卡?", "警告", MessageBoxButtons.OKCancel) == DialogResult.OK)
         {
             var adapter = new T_CardsTableAdapter();
             int ret     = 0;
             ret = adapter.MyDelete(Convert.ToInt64(dgvCards.Rows[e.RowIndex].Cells["idDataGridViewTextBoxColumn"].Value));
             if (ret > 0)
             {
                 MessageBox.Show("删除成功");
                 return;
             }
             else
             {
                 MessageBox.Show("删除失败");
                 return;
             }
         }
     }
     if (e.ColumnIndex == dgvCards.Columns["ColModify"].Index)//修改
     {
         using (var mForm = new 添加消费卡())
         {
             mForm.mId  = Convert.ToInt64(dgvCards.Rows[e.RowIndex].Cells["idDataGridViewTextBoxColumn"].Value);
             mForm.Text = "修改消费卡";
             mForm.ShowDialog();
             dgvCards.DataSource = new T_CardsTableAdapter().GetData();
         }
     }
 }