如何在没有数据字段的gridview中制作超链接？

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" DataSourceID="SqlDataSource1">
    <Columns>
        <asp:HyperLinkField DataNavigateUrlFormatString="http://example.com?id={0}" DataTextField="ProductName" HeaderText="Product Name" />
        <asp:BoundField DataField="Category" HeaderText="Category" />
        <asp:BoundField DataField="Price" HeaderText="Price" />
    </Columns>
</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:YourConnectionString %>"
    SelectCommand="SELECT ProductID, ProductName, Category, Price FROM Products"></asp:SqlDataSource>