valid

The valid property indicates if the validation passed. valid is false if, for example:

• A file was not selected, or was selected but not uploaded, in cases where the file is required.
• A file's type is not supported.
• A file's size is not within the allowed limit.
• There was a failed attempt to upload a file that passed input validation checks to the Media Manager with uploadFiles(). This could happen, for example, if the Internet connection is not stable. In this case, the fileNotUploaded validity property is also set to false.