public static bool IsChordsFileValid(HttpPostedFileBase chordsFileHandler, SongFileType fileType, out IList <IBar> bars, out string errorMessage)
{
bars = null;
errorMessage = null;
try
{
// build a stream reader for reading the chord progression
StreamReader streamReader = new StreamReader(chordsFileHandler.InputStream);
bars = CompositionContext.ReadChordsFromFile(streamReader);
// reset stream origin seek to beginning
chordsFileHandler.InputStream.Position = 0;
// no errors found while parsing the file
return(true);
}
catch (Exception ex)
{
// if this is a chord file validation, return any found errors if such exist
if (fileType == SongFileType.ChordProgressionFile)
{
errorMessage = ex.Message;
return(false);
}
// if this is a check for midi file, no need to fail on chords
return(true);
}
}