编译成功,但是显示一片空白!这是啥原因啊,请指教!代码如下! public class index : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid dg; private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
OleDbConnection Conn=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;"+"Data Source="+Server.MapPath("gbook.mdb"));
String strSQL="select * from grade";
OleDbCommand Comm=new OleDbCommand(strSQL,Conn);
OleDbDataAdapter da=new OleDbDataAdapter();
da.SelectCommand=Comm;

Conn.Open();

DataSet ds = new DataSet();
da.Fill(ds,"grade");

DataView s=new DataView(ds.Tables["grade"]);
dg.DataSource=s;
dg.DataBind();
Conn.Close();
}.aspx 页<asp:DataGrid id="dg" style="Z-INDEX: 101; LEFT: 72px; POSITION: absolute; TOP: 56px" runat="server"></asp:DataGrid>