Bueno ya lo he conseguido aqui pongo en codigo html y vb.net para el que lo necesite:
codigo html:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>VISOR DE FOTOS</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button3" runat="server" Style="left: 146px; position: absolute; top: 14px"
Text="PROCESAR" Width="100px" />
<asp:GridView ID="GridView1" Runat="server"
DataSource='<%# GetData() %>' AutoGenerateColumns="False"
BorderWidth="1px" BackColor="White" CellPadding="3" BorderStyle="None"
BorderColor="#CCCCCC" Font-Names="Arial" style="left: 88px; position: absolute; top: 51px">
<FooterStyle ForeColor="#000066" BackColor="White"></FooterStyle>
<PagerStyle ForeColor="#000066" HorizontalAlign="Left"
BackColor="White"></PagerStyle>
<HeaderStyle ForeColor="White" Font-Bold="True"
BackColor="#006699"></HeaderStyle>
<Columns>
<asp:BoundField HeaderText="ARCHIVO" DataField="ARCHIVO"></asp:BoundField>
<asp:ImageField DataImageUrlField="IMAGENURL"></asp:ImageField>
</Columns>
<SelectedRowStyle ForeColor="White" Font-Bold="True"
BackColor="#669999"></SelectedRowStyle>
<RowStyle ForeColor="#000066"></RowStyle>
</asp:GridView>
</div>
</form>
</body>
</html>
CODIGO VB.NET
Imports System.IO
Imports System.DATA
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click
Page.DataBind()
End Sub
Function GetData() As DataTable
Dim dt As New DataTable()
Dim VALOR As Integer
dt.Columns.Add(New DataColumn("IMAGENURL", GetType(String)))
dt.Columns.Add(New DataColumn("ARCHIVO", GetType(String)))
Dim f As String()
f = System.IO.Directory.GetFiles(Server.MapPath("FOTOS"), "*.jpg")
For Each i As String In f
Dim x As New System.IO.FileInfo(i)
i = x.Name
Dim dr As DataRow = dt.NewRow()
dr("IMAGENURL") = ResolveUrl("~/FOTOS/" & i)
dr("ARCHIVO") = i
dt.Rows.Add(dr)
Next
Return dt
End Function
End Class
Saludos y gracias a todos por haberme ayudado.
