Left.ascx.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 Left : System.Web.UI.UserControl
{
    SqlHelper data = new SqlHelper();
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            dlLink.DataSource = data.GetDataReader("select * from  FUrl  order by  id desc ");
            dlLink.DataBind();
            DlSoftType.DataSource = data.GetDataReader("select * from  SoftType  order by  TypeID desc ");
            DlSoftType.DataBind();
           

            DlGoodsType.DataSource = data.GetDataReader("select * from  GoodsType  order by  id desc ");
            DlGoodsType.DataBind();
            
        }
        
    }
   
}