Display Image from Folder (Directory) in GridView ImageField in ASP.Net

My code

Can’t display image in GridView

My image path is Images/img.jpg. Please help fix this code

I would prefer image field because i want to use it to pass the value id to another page  via  DataNavigateUrlFormatString="CustomerDetails.aspx?Id={0}".The image cant perform this function

<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="Data Source=edu\SQLEXPRESS01;Initial Catalog=School;Integrated Security=True"
ProviderName="System.Data.SqlClient"
SelectCommand="SELECT [Id], [Name], [Photo], [RollNo] FROM [tbl_class] ">
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Id"
DataSourceID="SqlDataSource2" AllowPaging="True" AllowSorting="True"
style="margin-right: 1px" Width="676px" BackColor="White"
BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px" CellPadding="4">
<Columns>
    <asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False"
        ReadOnly="True" SortExpression="Id" />
    <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
    <asp:BoundField DataField="Photo" HeaderText="Photo" SortExpression="Photo" />
    <asp:BoundField DataField="RollNo" HeaderText="RollNo"
        SortExpression="RollNo" />
    <asp:HyperLinkField DataNavigateUrlFields="Id,Name"
        DataNavigateUrlFormatString="CustomerDetails.aspx?Id={0}&Name={1}"
        Text="Pass Single Value" />
    <asp:ImageField DataImageUrlFormatString="~/Images/img.jpg" >
    </asp:ImageField>
</Columns>
</asp:GridView>