//双击Grid的列,弹出修改框
        protected void GridDBClick(object sender, DirectEventArgs e)
        {
            userinfoMgr mgr  = new userinfoMgr();
            userinfo    user = mgr.FindById_userinfo(int.Parse(e.ExtraParams["id"]));

            if (user != null)
            {
                TxtUserName.Text = user.username;
                TxtTel.Text      = user.telephone;
                TxtEmail.Text    = user.email;
                cboRole.Value    = user.roleid;
                TxtAddress.Text  = user.address;
                Hid.Text         = user.userid.ToString();
                WinUser.Show();
            }
        }