Application Page Not dispaying as a popup

Question

Hi,
My requirement is
To call the application page post clicking on hyperlink on the webpart.
For this i have written code as below.
Problem here is I am able to browse application page through http://servername:portno/sites/sitename
But getting message as 'The webpage cannot be found' on the popup,after clicking hyperlink on the webpart.
//VisualWebPart1.ascx
<script type="text/javascript">
    var options = {    
        url: "/_layouts/TestPopup/testpage.aspx",
        title: "test page",
        allowMaximize: true,
        showClose: true,
        width: 625,
        height: 525,
        dialogReturnValueCallback: silentCallback
    function open() { SP.UI.ModalDialog.showModalDialog(options); }
    function silentCallback(dialogResult, returnValue) {
    function refreshCallback(dialogResult, returnValue) {
        SP.UI.Notify.addNotification('Operation Successful!');
        SP.UI.ModalDialog.RefreshPage(SP.UI.DialogResult.OK);
</script>
<a href="javascript:open()">Click Here</a>
//testpage.aspx
<asp:Content ID="PageHead" ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">
</asp:Content>
<asp:Content ID="Main" ContentPlaceHolderID="PlaceHolderMain" runat="server">
</asp:Content>
<asp:Content ID="PageTitle" ContentPlaceHolderID="PlaceHolderPageTitle" runat="server">
Application Page
</asp:Content>
<asp:Content ID="PageTitleInTitleArea" ContentPlaceHolderID="PlaceHolderPageTitleInTitleArea" runat="server" >
My Application Page
</asp:Content>
Regards,
Sudheer
Thanks & Regards, Sudheer

Answer 1

Hi Sudheer ,
EmailDataMapping.Add("$$siteprocess$$", string.Format("<a target=\"_blank\" href=\"{0}/_layouts/GfK_Level3Communication/SiteSurvey.aspx?List={1}&ID={2}&IsDlg=0&FromMail=Yes\">{3}</a>", workflowProperties.WebUrl, workflowProperties.TaskListId,
siteSurveyTask_ListItemId, "Click Here."));
you can pass the parameters to your  webpart.
Regards,
Sunita.
Thanks&Regards, Sunitha.