protected void ShowData()
        {
            string id = Request["MenuId"];

            if (!string.IsNullOrEmpty(id))
            {
                UserMenuBll bll   = new UserMenuBll();
                UserMenu    model = bll.GetModel(Convert.ToInt32(id));
                if (model != null)
                {
                    this.txtMenuName.Text      = model.MenuName;
                    this.txtMenuAddress.Text   = model.MenuAddress;
                    this.txtMenuOrder.Text     = model.MenuOrder.ToString();
                    this.rdoList.SelectedValue = model.IsNavigation.ToString();
                    if (model.ParentId == 0)
                    {
                        this.ddlParent.Enabled = false;
                    }
                    else
                    {
                        this.ddlParent.SelectedValue = model.ParentId.ToString();
                    }
                }
            }
        }
        //保存
        protected void btnSave_Click(object sender, EventArgs e)
        {
            string      id    = Request["MenuId"];
            UserMenuBll bll   = new UserMenuBll();
            UserMenu    model = null;

            if (!string.IsNullOrEmpty(id))//如果是修改操作
            {
                model = bll.GetModel(Convert.ToInt32(id));
            }
            else //如果是新增操作
            {
                model = new UserMenu();
            }
            model.MenuName     = this.txtMenuName.Text.Trim();
            model.MenuAddress  = this.txtMenuAddress.Text.Trim();
            model.MenuOrder    = Convert.ToInt32(this.txtMenuOrder.Text.Trim());
            model.ParentId     = Convert.ToInt32(this.ddlParent.SelectedValue);
            model.IsNavigation = Convert.ToInt32(this.rdoList.SelectedValue);

            int n = 0;

            if (!string.IsNullOrEmpty(id))//如果是修改操作
            {
                n = bll.Update(model, null);
            }
            else //如果是新增操作
            {
                n = bll.Insert(model, null);
            }

            if (n > 0)
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('保存成功!');frameElement.lhgDG.curWin.location.reload();</script>");
            }
            else
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('保存失败!');frameElement.lhgDG.curWin.location.reload();</script>");//刷新,lhgDG是个第三方的JS弹出窗
            }
        }