kh_list.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 kh_list : System.Web.UI.Page
{
    public string lx, lxtxt;

    protected void Page_Load(object sender, EventArgs e)
    {
        lx = Request.QueryString["lx"].ToString().Trim();
        if (lx == "1")
        {
            lxtxt = "供应客户";
        }
        else
        {
            lxtxt = "采购客户";
        }

        if (!IsPostBack)
        {
            string sql;
            sql = "select * from kh where lx='"+lxtxt+"' order by id desc";
            getdata(sql);
        }
    }

    private void getdata(string sql)
    {
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                DataGrid1.DataSource = result.Tables[0];
                DataGrid1.DataBind();
            }
            else
            {
                DataGrid1.DataSource = null;
                DataGrid1.DataBind();
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string sql;
        sql = "select * from kh where lx='"+lxtxt +"'";
        if (xm.Text.ToString().Trim() != "")
        {
            sql = sql + " and xm like '%"+xm.Text.ToString().Trim()+"%'";