FileFilter for RadAsyncUpload not working

[Manoj]

Filefilter is not working at the first time.

When i add a invalid file. it display the file name in red.
  
then i remove and try to add another file.

Now the FileFilter works fine

[Peter Filipov]

Hi Manoj,

We are aware of the mentioned issue but unfortunately it is out of our scope of control. The file filtering is available with Silverlight and Flash module only. There is a problem with the initialization of the Silverlight/Flash object caused by the plugins. Regardless of the incorrect file filtering, the file validation is working properly.

Regards,
Peter Filipov
the Telerik team