EquipmentManagement/Admin/sel_sbbh.aspx.cs

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using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
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 Data_Control;

public partial class sel_sbbh : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string[] strsql;
            strsql = new string[2];
            strsql[0] = "Select EquiStyleID as bm,EquiStyleName as nr From EquiStyle";
            strsql[1] = "Select EquiSortID as bm,EquiSortName as nr from EquiSort";
            DropDownList[] ddl;
            ddl = new DropDownList[2];
            ddl[0] = DDL_Sbzl;
            ddl[1] = DDL_Sblb;
            for (int i = 0; i <= 1; i++)
            {
                DDL_BindData(strsql[i], ddl[i]);
            }
        }
    }

    private void DDL_BindData(string strSQL, DropDownList DDL)
    {
        AddEquiDB addEquiDB = new AddEquiDB();
        SqlConnection conn = addEquiDB.GetConn();
        conn.Open();
        SqlCommand cmd = new SqlCommand(strSQL, conn);
        SqlDataReader da = cmd.ExecuteReader();
        DDL.DataSource = da;
        DDL.DataTextField = "nr";
        DDL.DataValueField = "bm";
        DDL.DataBind();
        DDL.Items.Insert(0, new ListItem("全部", ""));
        conn.Close ();
    }

    protected void DDL_Sblb_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			string sbzl_my = DDL_Sbzl.SelectedValue;
			if(sbzl_my!="")
			{
				string strsql = "Select EquiSortID as bm,EquiSortName as nr from EquiSort where EquiStyleID="+Convert.ToInt32(sbzl_my)+"";
				DDL_BindData(strsql,DDL_Sbzl);
			}
			else
			{
				string strsql = "Select EquiSortID as bm,EquiSortName as nr from EquiSort";