![]() A simple fallback solution for older browsers would be to display a regular file input dialog, but we won't be doing this today, as we will be focusing our attention on using HTML5. One of them is Filedrop, which is a wrapper around this functionality, and provides features for limiting maximum file size and specifying callback functions, which is really handy for integrating it into your web applications.Ĭurrently file uploads work only in Firefox and Chrome, but upcoming major versions of the other browsers also include support for it. ![]() Fortunately, there are jQuery plugins that can do this for us. Sounds complicated? Yes, it could use some optimization. We use the new sendAsBinary method of the XMLHttpRequest object, and send the file data to the server.Using the File Reader API, we read the files in the list as binary data, and store them in memory.Browsers that support the Drag & Drop API will fire an event, which alongside other useful information, contains a list of files that were dropped The user drops one or more files from their file system to the browser window by dragging.Here is a description of a HTML5 file upload process: Uploading files using HTML5 is actually a combination of three technologies - the new File Reader API, the also new Drag & Drop API, and the good ol' AJAX (with the addition of binary data transfer). Currently, the photos are only stored in a folder on the server, but you could improve it any way you like. The photos will have a preview and a progress bar, all of which controlled on the client side. I named mine .Today we will be developing a small web application called Upload Center, that will allow people to upload photos from their computers by dragging and dropping them onto the browser window, possible with the new HTML5 APIs exposed by modern browsers. Next you need to add a new javascript file under Scripts that will hold the code for the custom FileDrop actions. First, you need to add the libraries that will provide the FileDrop functionality: ĭrop images here to upload. The html code required for the plugin is minimal. Ensure that the page has a reference to the jquery library either through the _Layout.cshtml page or by directly adding a reference here. Now open your View file and edit it in Visual studio. This is the GET method that will allow us to navigate to the UploadFiles view when using the url i mentioned earlier. Next, go to your HomeController and create the following method: public ViewResult UploadFiles() If you wish, you can add a navigation link on your _layout.cshtml page to make this page more accessible. You should be able to navigate to the page using a url similar to this Ignore the first part as it will be different on your machine. Create a new blank view and name it “UploadFiles”. In this tutorial we will see how to implement this using the FileDrop jQuery plugin and an MVC controller to receive and store the uploaded files in a repository on the server.įirst create a new MVC 4 website in Visual Studio. With the advent of HTML5 and its wide adoption by all major browsers, web developers now have a new arsenal in their hands for implementing powerful file upload functionality on their website. Posted in ASP.NET, HTML 5, jQuery, MVC, upload, c# HTML5 Drag and Drop file upload with preview using jQuery and MVC 4 17 January 2013
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