public function __construct($caption, $fieldName, $editControl, $dataset, $allowSetToNull = false, $allowSetToDefault = false, $targetFolderTemplate = '', $fileExtension = '')
{
parent::__construct($caption, $fieldName, $editControl, $dataset, $allowSetToNull, $allowSetToDefault);
$this->targetFolderTemplate = $targetFolderTemplate;
$this->OnCustomFileName = new Event();
$this->useThumbnailGeneration = false;
$this->replaceUploadedFileIfExist = true;
}