Ajax file upload asp.net mvc3

The fileInput is the file upload control, which uploads files on the server when the fileButton is clicked. Moreover the img tag will show the loading image when the file upload process is underway. So add the below jQuery code to your View. Add the UploadFiles action to your controller. It is used by millions of people around the world to learn and explore about ASP. Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Next, HttpFileCollectionBase class collects all files from request object. Once it collects all files, it loop over all files and save it one by one.

After saving files it returns JSON data to browser that it is successfully uploaded, and if exception occurs then it send exception message in JSON format. Above code is suitable for only one file at a time but if you want to upload multiple files then you need to go for a small change. You can overcome the issue with time out property of AJAX.

Choose appropriate one as per your file size and environment. View All. Manas Mohapatra Updated date Dec 30, Start implementation, I want to introduce FormData object which is available in browser. As stated ,. In preceding code, first it checks whether windows. Thanks for the links guys. For security purposes browsers sandbox file input controls.

You have no direct access to the file data from javascript and therefor you cannot just make an AJAX call to upload the file. It will post all of the other fields but not the data. The way to get around that is to post to a hidden iFrame and retrieve the results back.

In fairness I also want to give credit to the article that lead me to this solution. John Rudolf Lewis posted a blog article with the solution. I modified it to fit my purposes and tried to explain the solution in more detail. Honestly I love Silverlight but I don't see Silverlight or Flash being a good long term technology investment, although Silverlight's 5 support lifecycle runs into While I personally wouldn't use one for content, in this scenario it solves the problem without tethering you to a third party technology Flash or Silverlight.

It relies on the technology already present in the browser and will be HTML 5 friendly. As it was said you can't upload file via client code becouse of security reasons. The value property of the input type file cannot be set through js code. If it can be then DDOS attacks welcome.

Use silverlight or flash component instead - they are well tested and have pretty much functions. You're using Html.

BeginForm which is typical form post and it already supports files upload which is not Async ofcourse. HI, I used jquery.