What do you mean by "get at the files"? Can you explain a bit more about your scenario?

Also, if you have a sample project you're working on, can you send it to me at chrish at krystalware dot com so I can take a look? 

Hi Chris,

I tried to email you my sample but i got a bounce back saying:

Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

Your message did not reach some or all of the intended recipients.

      Subject:    RE:asp.net mvc ajax upload without update panel

      Sent: 10/18/2010 11:07 AM

The following recipient(s) cannot be reached:

      'chrish@krystalware.com' on 10/18/2010 11:07 AM

            Server error: '550 5.7.1 Unable to relay for chrish@krystalware.com'

ahh, there we go, very strange. set it from my gmail.    change the extension from .zipper to .zip.

I have received it. I'm doing some testing to see if there is a way to do what you want. This will be built in to SlickUpload 6 but requires some contortions to do in SlickUpload 5. I should have an answer for you in the next day or two.

Here's a solution. Basically, we'll create a second server side handler that the client side code on your upload page can call to get the upload status after an upload is complete. This will retrieve the uploaded file information. You can also add any server side code you might want to use to record or manipulate the files here.

Add an UploadComplete.aspx to your project (the handler name doesn't matter, but I'll be referring to it as "UploadComplete.aspx" here). Add the following content:

<%@ Page Language="C#" %>
<%@ Import Namespace="Krystalware.SlickUpload" %>
<%@ Import Namespace="Krystalware.SlickUpload.Controls" %>
<%@ Import Namespace="Krystalware.SlickUpload.Status" %>

<%
    UploadStatus status = UploadConnector.GetUploadStatus();

    Response.ContentType = "text/plain";
%>

<status>
    <% if (status != null) { %>
    <state><%=status.State.ToString() %></state>
    <reason><%=status.Reason.ToString() %></reason>
    <files>
        <% foreach (UploadedFile file in status.GetUploadedFiles()) { %>
        <file>
            <name><%=file.ClientName %></name>
        </file>
        <% } %>
    </files>
    <% } %>
</status>

You can add whatever other information you need here. Also, you'll probably want to change the content-type to "text/xml" -- I used "text/plain" so it pops up easily when accessed.

Then, in your page, set AutoPostBackAfterUpload=false, set OnClientUploadEnded="onUploadEnded", and add an OnUploadEnded handler like the following:

        function onUploadEnded(data)
        {
            kw.get("<%=SlickUpload1.ClientID %>").clear();

            $.post("<%=ResolveUrl("~/UploadComplete.aspx") %>",
                {
                    kw_uploadId : document.getElementById("kw_uploadId").value,
                    kw_uploadExecution : (data.isSuccessful ? "Attempted" : "Cancelled")
                },

                function(data, textStatus)
                {
                    alert(data);

    // TODO: actually do something with the data here
                });
        }

I apologize for all the contortions you have to go through here -- SlickUpload 6 will make this process much more straightforward.

Let me know if you have any questions.

I think i figured it out:

I have an action like this:

Function UploadResult(ByVal kw_uploadId As String, ByVal kw_uploadExecution As String) As ActionResult
       
        Dim status As UploadStatus = UploadConnector.GetUploadStatus
        Dim files = status.GetUploadedFiles
        Dim returnList As IList(Of String) = New List(Of String)
        For Each thing In files
            returnList.Add(thing.ClientName)
        Next
        Return (Json(returnList))
    End Function

and it seems to be returning the right files. 

will this work if i have multi users uploading files at the same time?

I can put together a sample for you.

Which view technology are you using? WebForms? MVC? Razor?

So it now basically works on the first upload (i only allow one upload in a session and close the jquery-popup after it).

If the user reopenes the popup, the next upload doesnt start. Logging with kw.debug = true says:

state=complete, status=error, errorType=ServerUnavailable, percentComplete=100, timeRemaining=0, ...

The first file is uploaded correctly and the ajax-callback works fine.

The code:

function onSessionEnd(data) {
                        DoAjaxPostRequest('<%=WebTools.GetAjaxPostUrl( EAjaxPostRequestType.SaveAttachment ) %>',
                            { "<%=Constants.AJAX_UPLOAD_DESCRIPTION %>": $('#<%= tb_PopUp_Description_Upload.ClientID %>').val()},
                                function(data){
                                    kw("attachmentFileSelector").clear();
                                    ClosePopup('#<%= AttachmentPopup.ClientID %>');
                                    $('#attachmentUploadPanel').html(data.ControlHtml);
                            });
                    }

kw(function () {
                        var uploadConnector = new kw.UploadConnector(
                        {
                            id: "attachmentUploadConnector",
                            uploadHandlerUrl: "<%=ResolveUrl("~/SlickUpload.axd") %>",
                            completeHandlerUrl: "<%= WebTools.GetAjaxUploadHandlerUrl( EUploadType.Attachment ) %>",
                            uploadProfile: "wcfUpload",
                            autoUploadOnSubmit: false,
                            autoCompleteAfterLastFile: true,
                            onUploadSessionEnded: onSessionEnd,
                            onUploadSessionStarted: onSessionStarted,
                            onClientUploadSessionProgress: onUploadSessionProgress
                        });

                        var fileSelector = new kw.FileSelector(
                        {
                            id: "attachmentFileSelector",
                            uploadConnector: "attachmentUploadConnector",
                            onFileAdded: onFileSelectionChanged,
                            onFileRemoved: onFileSelectionChanged,
                            maxFileSize: 256000,
                            maxFiles: 1,
                            showDropZoneOnDocumentDragOver: false
                        });

                        var fileList = new kw.FileList(
                        {
                            id: "attachmentFileList",
                            templateElement: "attachmentFileList_template",
                            fileSelector: "attachmentFileSelector"
                        });

                        var progressDisplay = new kw.UploadProgressDisplay(
                        {
                            id: "attachmentProgressDisplay",
                            uploadConnector: "attachmentUploadConnector"
                        });


                    });