/// <summary>
        /// 添加会员按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnCreateMember_Click(object sender, EventArgs e)
        {
            Form05_MemberInfo frmMemberInfo = checkFormIsOpened("Form05_MemberInfo") as Form05_MemberInfo;

            if (frmMemberInfo == null)
            {
                frmMemberInfo = new Form05_MemberInfo(1, string.Empty);
            }

            frmMemberInfo.ShowDialog();
        }
        /// <summary>
        /// 修改会员按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnModifyMember_Click(object sender, EventArgs e)
        {
            string memberKey = this.gridViewMembers.GetRowCellDisplayText(this.gridViewMembers.FocusedRowHandle, "Member_ID");
            if (string.IsNullOrEmpty(memberKey))
            {
                ShowInfoMsgBox(MessageConst.errMsg_noSelect);
                return;
            }

            using (Form05_MemberInfo form05MemberInfo = new Form05_MemberInfo(2, memberKey))
            {
                form05MemberInfo.ShowDialog();
            }
        }
        /// <summary>
        /// GridView行双击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridViewMembers_RowClick(object sender, RowClickEventArgs e)
        {
            if (e.Clicks == 2)
            {
                // 主键
                string memberKey = this.gridViewMembers.GetRowCellDisplayText(e.RowHandle, "Member_ID");
                if (string.IsNullOrEmpty(memberKey))
                {
                    ShowWarnMsgBox(MessageConst.errMsg_DataError);
                    return;
                }

                Form05_MemberInfo f05 = checkFormIsOpened("Form05_MemberInfo") as Form05_MemberInfo;
                if (f05 != null)
                {
                    f05.Close();
                }

                f05 = new Form05_MemberInfo(2, memberKey);
                f05.ShowDialog();

            }
        }