StartUpload does not work with multiple files selection

[Mohamed]

Dear support,

RadControls for Silverlight Q2 2011,
I am using the RadUpload control and I am trying to start the Upload process programmatically after the files is selected in he FileDialog
this is working fine when I attempt to upload on file, but when selecting multiple files it is not work fine all the time, sometimes it works fine and sometimes it display the pause button like if something is being uploaded but infact nothing is uploaded and the progress bar does not move. I checked the RadUpload's Items.Count property before upload and it has the number of files that I selected. Kindly tell me if I have to do something before calling StartUpload().

Mo

[Petar Mladenov]

Hi Mohamed,

 Currently, we are not aware of such existing issue in the RadUpload control. Are you able to reproduce this in this demo? On the other hand, we would highly appreciate if you can send us a runnable sample demonstrating your problem, this way we would investigate it better and provide you with an advice or workaround. Thank you for your cooperation.

Best wishes,
Petar Mladenov
the Telerik team

[Mohamed]

Hi Petar,

Solved,
I created a Telerik support ticket with attached sample and the answer is: 
You have to slow down the invocation of StartUpload a little like so:
privatevoiduxRadUpload_FilesSelected(objectsender, FilesSelectedEventArgs e)
 {
     Dispatcher.BeginInvoke(()=> uxRadUpload.StartUpload());
}
and this solved the problem. also DispatcherTimer can help if this doesn't solve.

Thanks Petar

[Nathan]

I had a similar issue.
Please vote to get this RadUpload StartUpload issue resolved:

http://www.telerik.com/support/pits.aspx#/details/Issue=9384