//修改会员
 private void btnUpdateMember_Click(object sender, EventArgs e)
 {
     if(dgvMemmber.SelectedRows.Count > 0)
     {
         //获取选中行的id
         //根据id去数据库查询
         int id = Convert.ToInt32(dgvMemmber.SelectedRows[0].Cells[0].Value.ToString());
         //去查询数据库数据
         MemberInfoBLL bll = new MemberInfoBLL();
         mea.Obj = bll.GetMemmberInfoByMemmberId(id);
         ShowFrmUpdateMemberInfo(2);
     }
     else
     {
         MessageBox.Show("请选择要修改的行");
     }
     
 }