Admin/JinHuoSearch.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;

public partial class Admin_JinHuoSearch : System.Web.UI.Page
{
    Alert alert = new Alert();
    SqlHelper data = new SqlHelper();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DropDownList1.DataSource = data.GetDataReader("select * from  Class  ");
            DropDownList1.DataTextField = "Name";
            DropDownList1.DataValueField = "id";
            DropDownList1.DataBind();
            DropDownList1.Items.Add(new ListItem("所有类别", "0")); //动态添加新项

        }

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Redirect("InqueJinHuoList.aspx?name=" + txtname.Text + "&Code=" + TextBox1.Text + "&TypeName=" + DropDownList1.SelectedItem.Text + "");

    }
}