default.aspx.cs

ASP.net+Access数据库源码数据库源码

using System;
using System.Data;
using System.Configuration;
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.Data.OleDb;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            OleDbConnection con = DB.mycon();
            con.Open();
            OleDbCommand cmm = new OleDbCommand("select distinct bmID,bmName from bmTable", con);
            OleDbDataReader ddr = cmm.ExecuteReader();
            this.DropDownList1.DataSource = ddr;
            this.DropDownList1.DataTextField = "bmName";
            this.DropDownList1.DataValueField = "bmID";
            this.DropDownList1.DataBind();
            ddr.Close();

            OleDbCommand com = new OleDbCommand("select bsID,bsName from bmTable where bmID = '" + DropDownList1.Text.ToString().Trim() + "'", con);
            OleDbDataReader ddrr = com.ExecuteReader();
            this.DropDownList2.DataSource = ddrr;
            this.DropDownList2.DataTextField = "bsName";
            this.DropDownList2.DataValueField = "bsID";
            this.DropDownList2.SelectedIndex = -1;
            this.DropDownList2.DataBind();
            ddrr.Close();

            OleDbCommand come = new OleDbCommand("select telperson as 技术负责,telnumber as 电话号码 from telph where bmID = '" + DropDownList1.Text.ToString().Trim() + "' and bsID = '" + DropDownList2.Text.ToString().Trim() + "'", con);
            OleDbDataReader dr = come.ExecuteReader();
            this.GridView1.DataSource = dr;
            this.GridView1.DataBind();
            dr.Close();
            con.Close(); 
        }  
    }
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        OleDbConnection con = DB.mycon();
        con.Open();
        OleDbCommand com = new OleDbCommand("select bsID,bsName from bmTable where bmID = '" + DropDownList1.Text.ToString().Trim() + "'", con);
        OleDbDataReader ddrr = com.ExecuteReader();
        this.DropDownList2.DataSource = ddrr;
        this.DropDownList2.DataTextField = "bsName";
        this.DropDownList2.DataValueField = "bsID";
        this.DropDownList2.DataBind();
        this.DropDownList2.SelectedIndex = -1;
        ddrr.Close();
        con.Close();
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        OleDbConnection con = DB.mycon();
        con.Open();
        OleDbCommand come = new OleDbCommand("select telperson as 技术负责,telnumber as 电话号码 from telph where bmID = '" + DropDownList1.Text.ToString().Trim() + "' and bsID = '" + DropDownList2.Text.ToString().Trim() + "'", con);
        OleDbDataReader dr = come.ExecuteReader();
        this.GridView1.DataSource = dr;
        this.GridView1.DataBind();
        dr.Close();
        con.Close();
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        Response.Redirect("adlogin.aspx");
    }
    protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
    {
        OleDbConnection con = DB.mycon();
        con.Open();
        OleDbCommand come = new OleDbCommand("select telperson as 技术负责,telnumber as 电话号码 from telph where bmID = '" + DropDownList1.Text.ToString().Trim() + "' and bsID = '" + DropDownList2.Text.ToString().Trim() + "'", con);
        OleDbDataReader dr = come.ExecuteReader();
        this.GridView1.DataSource = dr;
        this.GridView1.DataBind();
        dr.Close();
        con.Close();
    }
}