I think a Code explains it very well. I want to Add Custom Error Messages in a Zend_Form_Element_File-Field. In a Zend_Form_Element_Text this is no Problem and works well with $form->txtelementname->addError( 'custom message' )

But it doesn't work with Zend_Form_Element_File. Here's a example code (copied from my controller)

I needed this because i want to check the filemime with my function. (Please ask not why because i think that's irrelevant)

 
<?php

// inner action function

require_once( FORM_PATH . 'AdminDownloadUpload.php' );
$form = new Frm_AdminDownloadUpload();

if( $this->getRequest()->isPost() ) {
            
            $fileValid = false;
            if( $form->file->isValid( $this->getRequest()->getPost() ) ) {
               if( !$form->file->receive() ) {
                    $form->file->addError( 'admin.download.lblFileUploadFailed' );
                }

                if( !$form->isErrors() && $form->file->isUploaded() && $form->file->isReceived() ) {
                    // check for valid mime
                    $check = Frames::getInstance()->checkMime( null, $form->file->getFileName() );
                    if( !$check ) {
                        $form->file->addError( 'admin.download.lblFileUploadFailedMimeType' );
                        @unlink( $form->file->getFileName() );
                    } else {
                        $fileValid = true;
                    }
                }
            }
            if( $form->isValid( $this->getRequest()->getPost() ) ) {
                $post = $form->getValues();
                
                // works?!              
                var_dump( $post );
                die;
            } else {
                // delete file again because form isn't valid
                if( $fileValid ) {
                    $form->file->addError( 'admin.download.lblFileUploadFailedFormNotValid' );
                    if( file_exists( $form->file->getFileName() ) ) @unlink( $form->file->getFileName() );
                }
            }
        }

        $this->view->assign( 'form', $form );

?>