MVC js function value returned in view how to pass to controller?

Question

I've been given some 3rd party examples of dialog re-usage and I'm wanting to look at using some elements to pull values end users have selected, examples given have a JS function handling the selected value, how would I pass this to the controller action below? Any help or pointers would be massively appreciated.

View JS function

 } function fileSelected(data) { var el = document.getElementById("fileId"); if (data) el.innerText = data.selected; else el.innerText = "None"; } 

Controller action I'd like it to land

 [HttpPost] public ActionResult fd(string Fid) { Debug.WriteLine(Fid); return View(); } 

Answer 1

If you want to send value or data to Controller, you have to send it with AJAX.

var item; item.append("Fid", your data); $.ajax({ url: "@Url.Action("fd", "your Controller name")", type: "post", data: item, cache: false }); 

if you want give from controller any result, can attached this code end of above code (instead of ;)

.done(function (result) { this result have anything you return to this }