Does KUpload+ 2.0 has a way to filter the size of the file before its uploaded?
Yes. This is possible with KUpload+ 2.0. KUpload+ checks total upload size. You can limit total upload size in KUpload+ using setting in web.config file. If user try to upload file more than allowed size, KUpload+ will throw an exception. Developer can handle this exception and display user friendly message to user. For more information, please refer Topic Features-> Size validation in HTML help document. This document you will find in Demo. Click here to download KUpload+ demo.