How to save the file to the default location of FileReference download in flex!

Reference: ActionScript 3.0 API manual

The browse () method opens an operating system dialog box, prompting the user to select a file to upload. The FileReference.browse () method allows the user to select a file; The FileReferenceList.browse () method allows users to select multiple files. After successfully calling the browse () method, call the FileReference.upload () method to upload one file at a time. The FileReference.download () method prompts the user to provide the storage location of the file and starts downloading from the remote URL.

The FileReference class and FileReferenceList class are not allowed to set the default file location for the dialog box generated by browse () or download (). The default location displayed in the dialog box is the recently browsed folder (if the location can be determined) or the desktop. These classes are not allowed to read or write transferred files. They also do not allow the SWF file that initiated the upload or download to access the uploaded or downloaded file or its location on the user's disk.

The FileReference class and FileReferenceList class also do not provide authentication methods. For servers that need authentication, you can use Flash? The player browser plug-in downloads files, but uploading (on all players) and downloading (on stand-alone players or external players) will fail. Listening to the FileReference event can determine whether the operation completed successfully and handle the error.