protected void Page_Load(object sender, EventArgs e) { if (Session["Usermanager"] == null) { Response.Redirect("~/Login.aspx"); } else { if (!IsPostBack) { //填充DropDownlist控件 this.ddlCarrieCompany.DataSource = ComMan.GetAllCarrieCompany(); this.ddlCarrieCompany.DataTextField = "CoName"; this.ddlCarrieCompany.DataValueField = "Cid"; ddlCarrieCompany.DataBind(); //传过来的id不为空执行删除功能 if (Request.QueryString["Rid"] != null) { txtDate.Visible = true; string Rid = Request.QueryString["Rid"].ToString(); RegisterTB Regg = new RegisterTB(); Regg = regMan.GetAllTBByRid(Rid); ddlCarrieCompany.SelectedValue = Regg.Cid.ToString(); txtBeginNo.Text = Regg.BeginNo.ToString(); txtEndNo.Text = Regg.EndNo.ToString(); txtDate.Text = Regg.Buydate.ToString(); txtRemark.Text = Regg.Remark; } //清空控件 else { txtDate.Visible = false; txtBeginNo.Text = ""; txtEndNo.Text = ""; txtDate.Text = ""; txtRemark.Text = ""; } lblmessage.Visible = false; lblok.Visible = false; } } }