Here Mudassar Ahmed Khan has explained with an example, how to upload File using FormData and AJAX in ASP.Net with C# and VB.Net.

The File will be read using HTML5 FormData JavaScript object and will be uploaded to server by calling Generic Handler using XmlHttpRequest (XHR) in ASP.Net.

Here Mudassar Ahmed Khan has explained ith an example, how to upload File without Form Submit (PostBack) using jQuery AJAX in ASP.Net using C# and VB.Net.

The Generic Handler will be used to upload and save files in Folder (Directory) in ASP.Net.

The Generic Handler will be called using jQuery AJAX and the file will be uploaded to Folder (Directory) with Progress Bar using HTML5 Form Data and XmlHttpRequest (XHR).