[Solved] Suppress: Error! Upload failed. Unexpected server response - see console.

[Greg Robbins]

Implementing server side validation for file size and file type, and using return Content("Error"); 
if there's an issue.  

Then in the OnError client event I'm displaying my error message.

However, after my error message displays another one pops up:
Error! Upload failed. Unexpected server response - see console.
Prevent this page from creating additional dialogs.

I've also tried the onComplete event with the same results.

Can I prevent the Telerik error from displaying?


Thanks for your assistance.

[T. Tsonev]

Hi Greg,

The documentation isn't particularly clear about this, but you can prevent the error message by cancelling the event:

<script type="text/javascript">
    function onError(e) {
        // Array with information about the uploaded files
        var files = e.files;

        if (e.operation == "upload") {
            alert("Failed to uploaded " + files.length + " files");
        }

        // Suppress default error message
        e.preventDefault();
    }
</script>

I hope this helps.

Regards,
Tsvetomir Tsonev
the Telerik team

[Greg Robbins]

Thanks, that's exactly what I needed!

I didn't find that line in the documentation.