Is there any other way that I can just check the size of a file before upload? The requirement is if the file exceeded the limit, the form mustn't submit. If it's not, I have to do the ordinary upload using the form and I don't have to exactly upload the file to the server using Flash.
Is there any other way that I can just check the size of a file before upload?
Not in JavaScript, the file size is not in the DOM.
when instantiating SWFUpload, there are two parameters you need to pass: file_size_limit, and file_queue_error_handler:
new SWFUpload({
file_size_limit: "10 MB",
file_queue_error_handler: queueErrorHandler,
[...]
})
and then:
function queueErrorHandler(file, errorCode) {
if (errorCode == SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT) {
alert("File exceeds the 10MB limit!");
}
}
this checks if the file size is within limits before starting the upload
with the W3C FileAPI (implemented at least by Firefox 3.6) you can.
See this link for details
http://hacks.mozilla.org/2009/12/w3c-fileapi-in-firefox-3-6/
Cheers
Checking the file size through the SWFUpload control is possible. Just put the SWFUpload control outside of the Web form tags. Tell the user click on the SWFUpload button and point to his upload file. Use javascript to determine the file size, then utilize this information as you see fit such as populating a validation function. Then your main form will need to ask the user to point to their upload file again, and it is this field which will do the actual uploading of the file. When the form is submitted, the SWFUpload control will be completely ignored since it's not part of the main form.
Related
I would like the browser to download file on button click of blade page. The following is used in controller and and added in provider file, but its showing in browser console but not downloading file.
use PDF;
// this controller
function sensorChartPDF(){
$pdf = PDF::loadView('sensorchartpdf');
return $pdf->download('invoice.pdf')->header('Content-Type','application/pdf');;
}
///// sensorchartpdf.blade.php this is view ///
https://canvasjs.com/javascript-charts/multi-series-spline-chart/
chart static code appened in this file
To signify to the web browser that the file should be downloaded and not displayed in line you have to specify the content-disposition header with a value of attachment.
Your question, however, does not appear to be purely a question regarding Dompdf. With Dompdf you would merely use the following:
$dompdf->stream("output.pdf", array('Attachment' => 1));
I'm providing this for anyone looking for similar issue when working with the library directly.
Since you're not using Dompdf directly but via another library so you'll need to specify exactly which library or framework you're using before somebody can provide an accurate answer.
Am tryng to automatically generate pdfs using html2pdf class. I got the following code which is working fine, only that someone has to save the pdf manually. However, Whenever a new product is added, I would like to automatically save the pdf to some folder without user intervention, and store this value in a database for future reference.
How do I go about saving the pdf 'silently' i.e. in the background without showing any popups or requiring the user to intervene?
Thanks in advance.
include('pdf_content.php');
$content = ob_get_clean();
// convert to PDF
require_once('html2pdf/html2pdf.class.php');
try
{
$html2pdf = new HTML2PDF('P', 'A4', 'en');
$html2pdf->pdf->SetDisplayMode('fullpage');
$html2pdf->setDefaultFont('Arial');
$html2pdf->writeHTML($content, isset($_GET['vuehtml']));
//$html2pdf->Output($file_name.'_'.date("dmY").'.pdf');
$html2pdf->Output($product_id.'_'.$file_name.'_'.date("dmY").'.pdf');
You can try calling this script everytime a new product is added, although then you wouldn't really do it in the "background"...
For more information, please note the question "How can I run a PHP script in the background after a form is submitted?"
EDIT:
If you wish to save the file on the server instead of outputting it to the browser, you can use different parameters. See also the html2pdf-wiki. Be aware that you cannot save the file on the user's computer unnoticed!
$html2pdf->Output('directory/file_xxxx.pdf', 'F');
We are using dojo's dojox.form.uploader.FileList in our application to show the progress of file upload. But it shows the name of the file, type extension by default. We could not see any settings to hide it or getting a handle to that. Is it possible to get a handle to that object which has file name, size and extension? Could you please help us?
I have an ASP application that uses ASPImage.Image to resize the uploaded image and then save the file to the server and save it in the database. However, it appears that if a user uploads a corrupted file the resulting image is blank white image.
I need a way to check if the file is corrupted before the image is passed to ASPImage.Image, that will then inform the user that the file is corrupted.
Can this be done with javascript, vbscript or ASPImage.Image itself?
Any assistance would be greatly appreciated.
Best Regards,
Paul Jacobs
There is no way to detect a corrupt image in either javascript or vbscript - you will need to try using ASPImage.Image directly.
It has an Error property, this will probably have an error detailing that a corrupt file has been loaded - did you try that? That is, if it is populated, chances are that the file was corrupt.
Additionally, the LoadImage method returns a boolean - I assume it will return false if the image couldn't be loaded due to corruption.
You can use the code here: http://forums.aspfree.com/code-bank-54/pure-asp-upload-script-with-additional-features-94647.html
Then check the image Width and Height - if 0 it means the uploaded file was not a valid image.
This is pure classic ASP code without third party components.
I have a selenium test I am creating. The application creates a pdf for the user. I want to know how to test that a url returns a pdf file. I don't really care what is in the pdf, just that one got created.
FYI - The url does not container .pdf
http://www.url.com/printp/something.php?pld=b8eiub9w6ar2am1i
Alternatively, make a HEAD request first to check if the url is created, then inspect content_length header, which should be nonzero size, or whatever is reasonable minimum size in your case.
Can you test if //meta[contains(#http-equiv,Content-Type)][contains(#content,pdf)] exists!
I did not test !