I have a problem , I trying to prevent Back history after I singed out my site , how to handle this problem

Put this code in page which should not access using back button.

protected override void OnPreRender(EventArgs e)
{
        base.OnPreRender(e);
    string sb ;
    sb = "<script language=javascript>\n";
    sb += "window.history.forward(1);\n";
    sb += "\n</script>";
    Page.RegisterClientScriptBlock("clientScript",sb);
}

ad this script on ur page to prevent user moving back tot he previous visted page:

<script language="javascript">
 window.history.forward();
</script>

and restrict caching of the pages that only member can access:

Response.Expires = -1
Response.AddHeader "pragma", "no-cache"
Response.CacheContr ol = "no-cache"

write this code in page_load

Regards,
Rashida Jabeen
http://www.akaas.net