Hey pytte,

In order to handle different uploaded files my suggestion is to configure your Upload Wrapper like:

@(Html.Infragistics().Upload()
        .ID("upload1")
        .ControlId("upload1")
        .MultipleFiles(false)

         .Mode(UploadMode.Multiple)
        .AutoStartUpload(false)
        .Render()
    )

Just set MultipleFiles to be false and Mode to be Multiple. Now the event will fire for each uploaded file and you can return different message for each of them.

I finally got it to work. Thanks for your example. The problem was in my web.config, it pointed to an older version of Infragistics.Web.Mvc.dll that i had referenced.

The next question is, how can i trigger file specific error messages when i upload multiple files?

If i want to upload 10 different files and 2 files generates two different errors, how can i show the specific message to just that file? 

Hello Pytte,

Let me correct myself, this issue is fixed and available in the last Service Release. I am attaching you a sample that is showing how to throw a custom error and show it in your view.

I hope that you will glad this approach.

Please have a look and let me know if you have any further questions.

Hello,

Now I understand you correctly.

In order to pass custom exception you will need to do it on FinishingUpload event for example.

internal static void igUpload_FinishingUpload(object sender, UploadFinishingEventArgs e)
        {
            e.ServerMessage = "My Custom Error";
            e.Cancel = true;
        }

And in your view you can handle onError client event:

@(Html.Infragistics().Upload()
        .ID("upload1")
        .ControlId("upload1")
        .MultipleFiles(false)
        .Mode(UploadMode.Single)
        .AutoStartUpload(false)
        .Render()
    )
 
 
    <div id="error-message" style="color: #FF0000; font-weight: bold;"></div>
    
    <script type="text/javascript">
        $(function () {
            $("#upload1").bind({
                iguploadonerror: function (e, args) {
                    alert(args.errorMessage);
                    $("#error-message").html(args.errorMessage).stop(true, true).fadeIn(500).delay(3000).fadeOut(500);
                }
            });
        });
    </script>

This should work, although there is an issue with that approach that is already fixed and should be available in the next service release (Future projection October 10, 2014).

I have implemented that callback, maybe i was a bit unclear in my first question but i was unable to get this to work properly.

How do i throw an custom error in the controller so it cant be shown in the client?

For an example, i want to check the resolution of a png file and run viruscheck after the file is uploaded.

If there is a working example of this scenario of this?