ListBox数据源过滤 重新绑定

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using System.Collections.Generic;

namespace Sgcyc.GysPt
{

    public class CbxLbx
    {
        private string arg;

        private CheckBox cbx;

        private ListBox lbx;

        public string Arg
        {
            get { return this.arg; }

            set { this.arg = value; }
        }

        public CheckBox Cbx
        {
            get { return this.cbx; }

            set { this.cbx = value; }
        }

        public ListBox Lbx
        {
            get { return this.lbx; }

            set { this.lbx = value; }
        }

        public void BindListBox(DataView view)
        {
            if (this.cbx.Checked)
            {
                this.lbx.DataSource = view;
                this.lbx.DataTextField = this.arg;
                this.lbx.DataBind();
                
                if (this.arg == "mqjb")
                    foreach (ListItem item in this.lbx.Items)
                    {
                        switch (item.Text)
                        {
                            case "11":
                                item.Text = "油井";
                                break;

                            case "31":
                                item.Text = "水井";
                                break;

                            case "4S":
                                item.Text = "蒸汽驱";
                                break;
                            default:
                                break;
                        }
                    }
            }
            else
            {
                this.lbx.Items.Clear();
            }
        }

        public CbxLbx(string arg, CheckBox cbx, ListBox lbx)
        {
            this.arg = arg;
            this.cbx = cbx;
            this.lbx = lbx;

        }

    }

    public partial class GysCxXt : System.Web.UI.Page
    {
        private List<CbxLbx> clList = new List<CbxLbx>();

        protected void Page_Load(object sender, EventArgs e)
        {
            this.clList.Add(new CbxLbx("mqjb", this.CheckBox1, this.ListBox1));
            this.clList.Add(new CbxLbx("qkdy", this.CheckBox2, this.ListBox2));
            this.clList.Add(new CbxLbx("km", this.CheckBox3, this.ListBox3));
            this.clList.Add(new CbxLbx("jlzh", this.CheckBox4, this.ListBox4));
            this.clList.Add(new CbxLbx("jh", this.CheckBox5, this.ListBox5));

            foreach (CbxLbx cl in this.clList)
            {
                cl.Lbx.SelectedIndex = -1;
                cl.Cbx.CheckedChanged += new EventHandler(Cbx_CheckedChanged);
                cl.Lbx.SelectedIndexChanged += new EventHandler(Lbx_SelectedIndexChanged);
            }

            if (!IsPostBack)
            {
                ListBoxTimeSetup();
                Sgcyc.DAL.DateAccess dataAccess
                    = new Sgcyc.DAL.DateAccess();

                string command = "select jh,qkdy,km,jlzh,mqjb from daa01 where wstbz=0";
                DataView view = dataAccess.GetDataviewByCommand(command);

                SessionView = view;
            }

        }

        void Lbx_SelectedIndexChanged(object sender, EventArgs e)
        {
            //throw new NotImplementedException();
            foreach (CbxLbx cl in this.clList)
            {
                cl.BindListBox(this.SessionView);
            }
        }

        void Cbx_CheckedChanged(object sender, EventArgs e)
        {
            //throw new NotImplementedException();
            foreach (CbxLbx cl in this.clList)
            {
                DataTable dt = this.SessionView.Table;
                string filter = string.Format(
                    "{0}={1}",
                    cl.Arg,
                    cl.Lbx.SelectedValue
                    );
                DataRow[] rows = dt.Select(filter);
                DataTable newTable = new DataTable();
                newTable.Rows.Add(rows);
                DataView newView = newTable.DefaultView;
                cl.BindListBox(newView);
                this.SessionView = newView;
            }
        }

        public DataView SessionView
        {
            get { return this.Session["view"] as DataView; }
            set { this.Session["view"] = value; }
        }

        private void ListBoxTimeSetup()
        {
            DateTime now = DateTime.Now;
            int nowYear = now.Year;
            int nowMonth = now.Month;
            int nowDay = now.Day;

            int beginYear = nowYear - 40;

            ListItem item = null;
            for (int year = beginYear; year <= nowYear; year++)
            {
                item = new ListItem(year.ToString());
                this.lbxBeginYear.Items.Add(item);
                this.lbxEndYear.Items.Add(item);
            }

            for (int month = 1; month <= 12; month++)
            {
                item = new ListItem(month.ToString());
                this.lbxBeginMonth.Items.Add(item);
                this.lbxEndMonth.Items.Add(item);
            }
            this.lbxEndMonth.SelectedValue = item.Text;

            for (int day = 1; day <= 31; day++)
            {
                item = new ListItem(day.ToString());
                this.lbxBeginDay.Items.Add(item);
                this.lbxEndDay.Items.Add(item);
            }
            this.lbxEndDay.SelectedValue = item.Value;

        }

    }
}