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Please do not post code, scripts or snippets. Required Invalid Email Address. Security code:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Can I use jQuery to create a file and its content dynamically? Asked 9 years ago.
Active 9 years ago. Viewed 23k times. Alexander Here are some examples:. The browser responds by opening up a file download dialog or ribbon for the user to download the file. The response from a file download error is generally no different from a normal HTML response, the only difference here is that is has an error message as HTML content.
The browser will now happily replace your existing page and address with the new error message. Not only have we now displayed an ugly error message to the user but we have also caused them to leave whatever page they were on.
Imagine you have created a nearly exclusively Ajax site like Gmail. A response like this from the server will cause your entire DOM to be replaced by an error message. Imagine this happening to you in Gmail and having to load up everything all over again. Well how the heck does that work?
The answer is:. I have to rely on Web. An iframe which is generally a mortal sin of modern web development can exist in a DOM but in most respects is treated like an entirely different window. By dynamically inserting a hidden iframe into the DOM and setting its location to the desired file path we can initiate a file download just like it was occurring in the main application window.
This directly gets us around one of the nasties of file downloads — if an error occurs the user has now been forced off of the page they were on which may contain an Ajax application like Gmail to see an ugly error message.
Like a normal file download in the main window an iframe will never fill with content when a successful file download occurs. It simply contains an empty DOM. Well how do we detect what is going on if nothing happens when the file download is successful.
Well this is where the cookie comes in:. Since the creation of cookies exists in HTTP headers, which is standard fare for all web requests and responses, we can actually write a cookie to indicate that a file download has been initiated properly instead of an error page. The response from the web server will now look something like this:.
Once a download is initiated on the iframe a configurable duration poll of cookies and the iframe contents occurs. If the iframe fills with contents then we know a file download has occurred in most cases, make sure to set a MIME type! Use of the very simple approach only protects you from the page changing in the event of a file download error. This alone is pretty useful.
This will result in an alert dialog telling you a file download initiation has just occurred for the specified URL. If a failure occurred it will display the attempted URL and error message in a dialog. You can see this one running at the top of the demo page.
In order for the below code to work for you, you will also need jQuery UI installed and an image if you want as a downloading spinner. This demo does almost the same thing as above but handles the modals manually by using the callbacks and it uses modal HTML that already exists on the page. Only the MVC 3 server code has been tested. Actually if you want to see it running just head over to the demo page. If you are using a Controller Action to serve up your files I hope you are!
There you will find additional Info to that Topic: johnculviner. Read More here on that Topic: johnculviner. Find More here on that Topic: johnculviner. Any help would be enormously appreciated!
Great site. Lots of useful information here. And obviously, thanks for your sweat! Wow, this piece of writing is nice, my younger sister is analyzing such things, so I am going to tell her. Hi I have to servers abc. Please stay us up to date like this.
Thanks for sharing. Fantastic site. Plenty of helpful information here. I am sending it to several pals ans additionally sharing in delicious. And naturally, thank you to your effort! Is there a way so that I can do this in ASP.
NET Application. There is certainly a great deal to know about this topic. I like all the points you have made. Good blog you have here..
I truly appreciate individuals like you! Take care!! Hmm is anyone else encountering problems with the pictures on this blog loading? I am regular reader, how are you everybody? This article posted at this website is genuinely good. You ought to be a part of a contest for one of the most useful blogs on the net. Thanks a lot! Your method of explaining all in this article is genuinely good, every one be capable of effortlessly be aware of it, Thanks a lot.
I got this working on my local machine Win 7 using ASP. I can see in the Internet Explorer F12 developer tool that I am indeed returning the required cookie. I am using your attribute code to decorate my controller method. Any ideas? Any workarounds other than disabling this flag for all my cookies? Hi, its good article concerning media print, we all know media is a impressive source of information.
Is it possible to use this for multiple links on a same page? Hi, I am receiving next exception when trying to download a big csv file from my instance DOMException: Blocked a frame with origin "" from accessing a cross-origin frame. My brother recommended I might like this web site. He was entirely right. This post actually made my day. Hey there! Do you know if they make any plugins to help with SEO? If you know of any please share. Buying medicines from an online pharmacy is a perfect solution for you when you are unable to reach out to the local drug store due to health problems or any hectic schedule of yours.
You can contact the CIPA to check that the pharmacy you are thinking of using truly is a member of their association. Hi, I want to implement jquery. NET Webform project. I am trying for last few days but it is not working.
IF any body has done it before, please share sample code. Thanks in Advance. I recently fixed a bug in our web app that required me changing your code. When abort is called and the browser is Internet Explorer the file still downloads to the browser. It would be nice if you include this in your code base for the benefit of others and in case our team upgrades our version of your code one day.
Unfortunately in the last couple of days I had some problems with very large files over 2 GB. Is this a limit of the plugin or what can I do to make it support larger files? Just some more info you may need: web application uses java 7, runs on tomcat 7 and the file is a zip built dinamically starting from files in a given directory.
I noticed the zip had a size according to log of bytes which is the max integer value in Java even though fileLength field is defined as long in my class , the real size of the zip was in fact some MB more than that, so I guess its value was cut due to some hidden conversion from long to int. Can you suggest any way to avoid this problem? I think you should use file stream instead of file download, like the example from this link.
Filestream writes the file directly to the disk, so i has better performance. I am about to move forward with the jquery. FileDownload plugin and am anticipating larger files on our production site. ToInt16 Request. SelectRecords Base. Report ID, Server. Write string. RequestCompleted ; document. Earnings plays a major function in any type of kind of mortgage, and also generally, home loan lenders do not desire you investing a good deal of your revenue on your house payment.
But where some have accepted these myths as reality, others have not and have gone on to achieve great things and live great dreams. Many government offices express this in a written policy about gifts to supervisors. However, many other options exist that are much lower-priced for those who have yet to get too serious. For other browsers i am getting proper error message coming from server.
Please help. This is why Facebook games are becoming more popular. The ease of use and dissemination of content, tagging deeeffcbdfdegcef. I am using file download to download. Can u plz help me out in this,how to show Microsoft Excel as default save as type when do save as for the downloaded. Thank you for this plugin, I managed to overcome my problem in. Your plugin worked, I had to set the cookie too!
Thank you! Hello John I am facing an issue with the plugin. It works fine for FF and IE. But for the Chrome it always ends up instantly in the successCallback. Here is the code that I use: filterUtils.
What is interesting, return false statement has no effect in any case. Do you have any idea what might be making this issue? I would really like to avoid setting a special case for Chrome and adding a timeout or similar hack solutions. Hi John, Excellent plugin. This code works fine in Chrome and does not work with IE. Can you please suggest a way to pass the form data that is compatible in both IE and Chrome.
Thanks in advance. While retesting use cases with mobile devices using the test page I noticed this small bug on IOS not tested on android. If you comment out the alert, the tab close by itself which would be the prefered scenario as tab opening is a little bit intrusive.
Any way to change content type? Hi John, thanks for a great plugin, and great explanation of what is happening under the hood. I am trying to implement your plugin in ASP. How should I call the server to be able to get a feedback that could be displayed to the user.
I use GET request:. In case of any issues server side, fail function never gets triggered at all! OK ; response. CreateStreamContent; response. Looks very promising! I would like to rely on your code to handle data that have already been downloaded!
I would like to perform the same post request as the control but with additional variable, but the control does not allow it easily… The best I can do, is use the control to generate a callback with my additional variables…. Pingback: showing pdf in browser tab through ajax « news-Knowlage FeeD.
Hi Xavier, may I know the successCallback and failCallback not works issue whether has fixed? I am using your plug-in and it works like a charm. However, I am facing an issue. Hope you could point me in a write direction to fix it. Most of the time the plug-in works fine, but sometimes it just closes the progress dialog box without giving any file to download. On further digging, I found out that while writing the file to response object it throws following. The remote host closed the connection.
The error code is 0xE3. ExplicitFlush at System. Flush Boolean finalFlush, Boolean async at System. There seems to be couple of reasons for this as suggested in some forums, user navigates to some other page or closes the browser.
An all too rare cinematic work of art that dares to be so much greater than what most individuals can even think about cinema to be. My question is how could I do custom action depending on server response? Use case: depending on the file size, I will either provide a download right away or send them an email with the file. In the latter case, I want to redirect them to a page explaining they will get an email or show a different message than if the download happened right away.
Without redirecting…. How could I achieve that with this awesome plugin? Hey John, Great plugin! Really useful. Hey I was wondering about renaming the files programmatically client-side because I change their names on the server to prevent conflicts.
Thanks for the help! This plugin is very useful. Unfortunately, using it with a POST request as in the 3rd example on the demo page does not appear to work in Internet Explorer 11 or higher. It returns the follow error:. Please keep us up to date like this. I have no issues downloading the excel sheet using this plugin, but for some reason the successCallback never gets triggered. Any thoughts on why that would be? Hi John, thanks for this great blog, beside a great plugin, this explained well why ajax request cannot download file, is this means we can not have this plugin work with WebApiContrib.
The WebApiContrib. Ive used the plugin couple of times and has worked like charm. Currently I am using the plugin to download an excel file which would get created from the data retrieved from the database.
I am using java servlets. The download is working fine but I wanted to send some specific messages back to javascript. Is there anyway I can do that from within your script? Whatever I send back is getting embedded within the iframe that gets dynamically added but with a delay. There is no way I can determine whether the file was literally created or not. Do let me know if I am not very clear or missing something.
You could write a cookie that contains that information and look for it in the client if that makes sense. Yes, no easy way to send the data back. Was wondering if we can send a response back along with url after successful download. Will try and see how can this be done without much changes to the code.
Info — Might help others looking for a solution. Worked well for me though. After trying various ways to pass in data back from servlet, I stuck to basics — followed what the plugin does. Use one cookie to pass values like conxerr, nodata, true, false etc.
While using IE11 for testing, the condition was always true and setTimeout kept looping for the code below. I introduced a condition to check the cookie being returned from the servlet for conxerr, nodata and false any other error that is not caught and called internalCallbacks. Fail accordingly. If these error codes were true, send back the cookie itself else send formDoc. This would contain the JSON data received from the servlet. This plugin worked like a charm in MVC.
But now I need to implement it in ASP. Can you make a ASP. NET webforms example as well. Would greatly appreciate it! AppendCookie new HttpCookie this. HttpOnly might be on by default in MVC5.
Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. Suppose you want to download a file when you click on a link. For downloading the file, we mentioned here to implementation as well as folder structure where you can see the file location.
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