It is fired when event onload(of XmlHttpRequest) is fired. This event will be fired only if the browser supports HTML5 file API. Function takes arguments evt and ui. Use ui.fileId to get unique identifier of the file. Use ui.xhr to get reference to the original XMLHttpRequest object. Use ui.fileInfo to get reference to the fileInfo object - containing information for fileName, fileSize, serverMessage(if returned from the server-side), etc. Use ui.owner in order to access the igUpload widget object.
Target Platforms: Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
