源代码/GuaHao.aspx.cs

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using System;
using System.Data;
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;

public partial class GuaHao : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
          
            
                string SQL = "select  * from View_1 ";
                DataSet result = new DataSet();
                result = DBHelper.GetDataSet(SQL);
                this.GridView1.DataSource = result;
                this.GridView1.DataBind();
                  SQL = "select * from TB_KeShi";
                DataSet ds1 = DBHelper.GetDataSet(SQL);
                this.DropDownList1.DataSource = ds1;
                this.DropDownList1.DataTextField = "KeShi";
                this.DropDownList1.DataValueField = "ID";
                this.DropDownList1.DataBind();
                this.DropDownList1.Items.Insert(0, "请选择");
            
          
        }
    }


    protected void Button1_Click(object sender, EventArgs e)
    {
        string SQL = "select  * from View_1 where  1=1";
        if (this.DropDownList1.SelectedIndex != 0)
        {
            SQL = SQL + " and KeShi='" + this.DropDownList1.SelectedItem.Text + "'";
        }
        if (!string.IsNullOrEmpty(this.TextBox2.Text))
        {
            SQL = SQL + " and XingMing='" + this.TextBox2.Text + "'";
        }
        DataSet result = new DataSet();
        result = DBHelper.GetDataSet(SQL);
        this.GridView1.DataSource = result;
        this.GridView1.DataBind();
            
    }
}