Datagrid with image on Web

How to work with Datagrid on the WEB and the column should be defined as an image.
The image will be brought from the database (.DAT).
I use Microfocus Cobol with Visual Cobol and use native database.


I tried ... but something is wrong


In .ASP, I wrote this code

  <asp:TemplateField HeaderText="Foto">
        <asp:Image ID="img" runat="server"
            ImageUrl=<%#Eval("wfoto") %> Width="100px" Height="100px" />     


In .asp.cbl (COBOL), this one


    declare Dt as type System.Data.DataTable
    invoke Dt::Columns::Add("wfoto",type System.Type::GetType::ToString())

   move "http://localhost:49955/Images/A30E.jpg" to wfoto

           move 1 to wind
           perform until wind > 10
               invoke Dt::Rows::Add(wfoto)
               add 1 to wind
           set GridView1::DataSource to Dt
           invoke GridView1::DataBind()


Someone can help me, please?