WebUI/AdminM/Category/ek_categoryMutiManage.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using HModel;
using Bll;
using System.Data;

namespace WebUI.AdminM
{
    public partial class ek_categoryMutiManage : System.Web.UI.Page
    { 
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {

                DataTable dt = new DataTable();
                dt.Columns.AddRange(
                     new DataColumn[]{
                         new DataColumn("id"),
                         new DataColumn("name"),
                         });

                if(Request.QueryString["act"] != null)
                {

                    if (Request.QueryString["cid"] != null)
                    {
                        string cid = Request.QueryString["cid"].ToString();

                        ek_category cate = Bll_ek_category.GetEntityById(cid);
                        if (cate != null)
                        {
                            DataRow dr = dt.NewRow();
                            dr["id"] = cate.id;
                            dr["name"] = cate.title;
                            dt.Rows.Add(dr);
                        }
                        else {
                            DataRow dr = dt.NewRow();
                            dr["id"] = "0";
                            dr["name"] = "系统最高频道";
                            dt.Rows.Add(dr);
                        }

                        List<ek_category> list = Bll_ek_category.GetEntityListByWhere(ek_category._.parent_id == 0); //cid
                         
                        GetTree(list, dt);

                        txt_parent_id.DataSource = dt;
                        txt_parent_id.DataTextField = "name";
                        txt_parent_id.DataValueField = "id";
                        txt_parent_id.DataBind();

                        txt_parent_id.SelectedIndex = 0;
                    }