DATAGRID为何不显示？

<asp:DataGrid id=DataGrid1 style="Z-INDEX: 104; LEFT: 52px; POSITION: absolute; TOP: 176px" runat="server" Height="126px" Width="298px" DataSource="<%# dataSet11 %>">private void Page_Load(object sender, System.EventArgs e)
{
this.sqlDataAdapter1.Fill(this.dataSet11);
}