jQuery can help in uploading a file on asp.net web page asynchronously. Add a generic handler in asp.net project like below. Upload Generic Handler – Code behind file (upload.ashx) public class upload : IHttpHandler { public void ProcessRequest(HttpContext context) { string fileName = HttpContext.Current.Request.QueryString["FileName"].ToString(); using (FileStream fs = File.Create("[Path]\\" + fileName)) { Byte[] buffer = […]