In this example, the Save button executes a regular postback request when a file is chosen. Create an ASP.NET MVC web application and name it as JQueryFileUpload. We will be using custom HTTP handler to upload file onto the server. I am going to explain it with an example. Ajax file upload plug-in allows us to upload files to server. The default is false ChunkSize - The size of a chunk used by HTML5 to upload large files in bytes. That is especially useful for file uploads as due to the specifics of Internet forms, files are uploaded only during postback requests (unless you use RadAsyncUpload to upload files asynchronously). In this article, we will look into file upload using JQuery plug-in. AutoStartUpload - Whether or not automatically start upload files after drag/drop or select in file dialog. The first example looks at using jQuery to post the form content asynchronously. AllowedFileTypes - A comma-separated list of allowed file extensions. The input tag helper automatically ensures that the type property on the input is rendered as file, based on the data type of the property passed to the asp-for attribute. Here is the content page, styled using BootStrap 4: The UploadedFile property make use of attributes to control the output of tag helpers, specifically the label and input tag helpers.

The IFormFile type is located in the namespace: public class IndexModel : PageModel The PageModel for this example includes a property called UploadedFile, which represents the file that gets uploaded when the form is posted. This section covers asynchronous form submission from a Razor Page using both the jQuery AJAX capability and the Fetch API. Managing Security With ASP.NET IdentityĪJAX is a technique used for making asynchronous requests from the browser to the server for various purposes including posting form values.

Ajax file upload example c#