public void MyBind()
 {
     Type_Drop.DataSource = nodeBll.Sel();
     Type_Drop.DataBind();
     Type_Drop.Items.Insert(0, new ListItem("无所属节点", "0"));
     Type_Drop.SelectedValue = ParentID.ToString();
     if (PaperID > 0)
     {
         M_Exam_PaperNode model = nodeBll.SelReturnModel(PaperID);
         TypeName_T.Text         = model.TypeName;
         Order_T.Text            = model.OrderID.ToString();
         Type_Drop.SelectedValue = model.Pid.ToString();
     }
 }
        protected void Save_Btn_Click(object sender, EventArgs e)
        {
            M_Exam_PaperNode model = new M_Exam_PaperNode();

            model.TypeName = TypeName_T.Text;
            model.ID       = PaperID;
            model.AdminID  = B_Admin.GetLogin().AdminId;
            model.CDate    = DateTime.Now;
            model.Remind   = Remind_T.Text;
            model.OrderID  = DataConverter.CLng(Order_T.Text);
            model.Pid      = DataConverter.CLng(Type_Drop.SelectedValue);
            if (PaperID > 0)
            {
                nodeBll.UpdateByID(model);
            }
            else
            {
                nodeBll.Insert(model);
            }
            function.WriteSuccessMsg("保存成功!", "Paper_Class_Manage.aspx");
        }