search.aspx.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class reg : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataSet dsbid = SqlHelper.ExecuteforDataSet("select * from productType");
            ddlbid.DataSource = dsbid;
            ddlbid.DataTextField = "tname";
            ddlbid.DataValueField = "tid";
            ddlbid.DataBind();
            ddlbid.Items.Insert(0, new ListItem("---全部---", "0"));


        }
    }

    /// <summary>
    /// 搜索
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Button1_Click(object sender, EventArgs e)
    {
        if ( ddlbid.SelectedValue == "0" &&   TextBox1.Text == "" && TextBox2.Text == "" && txt_bname.Text=="")
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "<script>alert('至少要填写一项！');</script>");
            return;
        }

        Response.Redirect("list.aspx?tid=" + ddlbid.SelectedValue +   "&p1=" + TextBox1.Text + "&p2=" + TextBox2.Text+"&k="+Server.UrlEncode(txt_bname.Text));
    }

}