ASP.NET

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource2" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" ForeColor="Black" GridLines="Vertical" DataKeyNames="Program_ID" Width="387px">
    <Columns>
        <asp:BoundField DataField="Program_ID" HeaderText="Program ID" SortExpression="Program_ID" />
        <asp:TemplateField HeaderText="Image Files for Program">
            <ItemTemplate>
                <asp:FileUpload ID="fileUpload" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#CCCCCC" />
    <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
    <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
    <AlternatingRowStyle BackColor="#CCCCCC" />
</asp:GridView>

//Button Click
foreach (GridViewRow row in GridView2.Rows)
        {
            FileUpload fileUpload = (FileUpload)row.FindControl("fileUpload");
            //Response.Write(fileUpload.FileName);
            if (!String.IsNullOrEmpty(fileUpload.FileName.Trim()))
            {
                // use the first file name for all if checkbox is checked.
                if (chkImageFile.Checked)
                {
                    if (String.IsNullOrEmpty(tempFileName))
                    {
                        tempFileName = fileUpload.FileName;
                        fileUpload.SaveAs(Server.MapPath("~/"));
                    }
                }
                else
                    tempFileName = fileUpload.FileName;              
            }
        }