GridView动态绑定

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 Sale_Test : System.Web.UI.Page
{
    ICollection CreateDataSource()
    {
        DataTable dt = new DataT