请教datagrid问题

怎么动态啊
<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %><html><head>   <script runat="server">      ICollection CreateDataSource() 
      {
         DataTable dt = new DataTable();
         DataRow dr;         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
         dt.Columns.Add(new DataColumn("PriceValue", typeof(Double)));
       
         for (int i = 0; i < 3; i++) 
         {
            dr = dt.NewRow();            dr[0] = i;
            dr[1] = (Double)i * 1.23;            dt.Rows.Add(dr);
         }         DataView dv = new DataView(dt);
         return dv;
      }      void Page_Load(Object sender, EventArgs e) 
      {
         MyDataGrid.DataSource = CreateDataSource();
         MyDataGrid.DataBind();
      }   </script></head><body>   <form runat="server">      <h3>HyperLinkColumn Example<h3>      <asp:DataGrid id="MyDataGrid" 
           BorderColor="black"
           BorderWidth="1"
           GridLines="Both"
           AutoGenerateColumns="false"
           runat="server">         <HeaderStyle BackColor="#aaaadd"/>         <Columns>            <asp:HyperLinkColumn
                 HeaderText="Select an Item"
                 DataNavigateUrlField="IntegerValue"
                 DataNavigateUrlFormatString="detailspage.aspx?id={0}"
                 DataTextField="PriceValue"
                 DataTextFormatString="{0:c}"
                 Target="_blank"/>
           
         </Columns>      </asp:DataGrid>   </form></body>
</html>