ZhuangJia.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 ZhuangJia : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            
                DataSet ds = DBHelper.GetDataSet("select * from TB_ZhuanJia");
                this.GridView1.DataSource = ds.Tables[0];
                this.GridView1.DataBind();

                string 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 TB_ZhuanJia where 1=1";
        if (this.DropDownList1.SelectedIndex != 0)
        {
            SQL = SQL + " and KeShi='"+this.DropDownList1.SelectedItem.Text+"'";
        }

        DataSet ds = DBHelper.GetDataSet(SQL);
        this.GridView1.DataSource = ds.Tables[0];
        this.GridView1.DataBind();
    }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        DataSet ds = DBHelper.GetDataSet("select * from TB_ZhuanJia");
        this.GridView1.DataSource = ds.Tables[0];
        this.GridView1.DataBind();
    }
}