<asp:GridView ID="gvDisplay" runat="server" AllowPaging="True" 
            AutoGenerateColumns="False" DataKeyNames="Id" DataSourceID="ObjectDataSource1">
            <Columns>
                <asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />
                <asp:BoundField DataField="Sex" HeaderText="Sex" SortExpression="Sex" />
                <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
                <asp:BoundField DataField="Age" HeaderText="Age" SortExpression="Age" />
                <asp:BoundField DataField="Address" HeaderText="Address" 
                    SortExpression="Address" />
                <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" 
                    ShowSelectButton="True" />
            </Columns>
        </asp:GridView>
        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" 
            DataObjectTypeName="Model.Person" DeleteMethod="Delete" InsertMethod="Insert" 
            SelectMethod="SelectAll" TypeName="BLL.Bll_Person" UpdateMethod="Update">
        </asp:ObjectDataSource>