Returns the column index (if any) for a key.
Returns the column index (if any) for a key.
If the key is a duplicate header then a FlatFileReaderException.DuplicateHeaders exception is throw.
Returns the column index (if any) for a key.
Returns the column index (if any) for a key.
If the key is a duplicate header then a FlatFileReaderException.DuplicateHeaders exception is throw.
Is there a column for this key?
Is there a column for this key?
Note: duplicate columns (-1, FlatFileReaderException.DuplicateHeaders) return false