Pseudo Ajax for file upload_html/css_WEB-ITnose

Iframe upload files

Continued from the previous article: The biggest feature of Ajax is no refresh, so the author wants to upload files by simulating Ajax, that is, iframe upload files

Without further ado, let’s get straight to the code

HTML:

1 <iframe name="send" style="display:none"></iframe>2 3 <form action="/home/receiveAjax/" target="send" method="post" enctype="multipart/form-data">4         <input type="text"/>5         <input type="file" name="file" id="file" />6         <input type="submit"/>7 </form>

C#:

1         [HttpPost]2         public ActionResult receiveAjax(string s1)3         {4             HttpPostedFileBase file = Request.Files[0];5             return Content("Success");6         }

The background code is the same as the previous article. If is displayed, you can also see the background code The return value "Success", and if there is an error, you can also debug it through the error in the returned iframe

The biggest feature of this upload method is that there is not a single line of javascript code

At this point, this article The end of this article, if you have any questions, please feel free to correct me