Uploading using Input=file

foreground, the target of the form points to the IFRAME

            <form action= "/emailhandler.ashx?action=upload" id= "Form1" Name= "Form1" enctype= "Multipart/form-data" method= " Post "target=" Hidden_frame ">                <div class=" Up_file "id=" Up_file ">                    <input type=" file "class=" fl  h_20 w_300 "id=" file "multiple=multiple name=" upload "onchange=" fileselected () "/>                    <input type=" Submit "value=" Upload "/>                </div>                <iframe name= ' hidden_frame ' id=" hidden_frame "style= ' Display:none ' > </iframe>                <div id= "FileInfo" ></div>            </form>

// Post-Upload callback method        function Callback (msg) {            document.getElementById ("file"). outerHTML = document.getElementById ("file"). outerhtml;            $ (' #attr_url '). Val (msg);            document.getElementById (' FileInfo '). InnerHTML + = "<p> upload success </p>"        }

Background:

 Case "Upload":                    #regionUploading files                    {                        stringPath =""; if(Context. Request.Files.Count >0) {httpfilecollection files= Context. Request.Files;//Accept File                            if(Files. Count >0)                            {                                foreach(stringIinchfiles) {Httppostedfile file=Files[i]; stringFileName = path.getfilename (file. FileName);//Get file name                                    stringFileext = Path.getextension (fileName);//Get file Type                                    if(! Directory.Exists (context. Server.MapPath ("/emailfiles/")) {directory.createdirectory (context. Server.MapPath ("/emailfiles/")); }                                                                        stringDircstr ="/emailfiles/"+ Emp.uid +"/"; if(!directory.exists (context. Server.MapPath (DIRCSTR)) {Directory.createdire Ctory (Path.getdirectoryname) (context.                                    Server.MapPath (DIRCSTR)); }                                    stringName =dircstr+ datetime.now.year+"-"+datetime.now.month+"/"; if(!directory.exists (context. Server.MapPath (name))) {Directory.createdirecto Ry (Path.getdirectoryname) (context.                                    Server.MapPath (name))); }                                    stringFileloadname = name +datetime.now.day.tostring () +datetime.now.hour.tostring () +datetime.now.minute.tostring () + DateTime.Now.Second.ToString () +Fileext; File. SaveAs (context.                                    Server.MapPath (Fileloadname)); Path+ = Fileloadname +','; }} Path= path. TrimEnd (','); Context. Response.Write ("<script>parent.callback ('"+ Path +"') </script>");//Call the foreground callback method} Break; }                    #endregion

Uploading using Input=file