Yield asynchronous results to a ASP PartialView

Question

I use an ajax call in a View to load data in a PartialView without blocking the UI.

$(function() {
     $.get( '@Url.Action("MyFunction", Model)', function( data ) {
                    $("#partialContainer").html(data);
                });
            }

The Controller code is really simple, Task.Delay will be replaced with another long running call to a web service:

public ActionResult MyFunction(MyFunctionModel model)
{
      for (int i = 0; i < 4; i++) {
           Task.Delay(4000).Wait();    
      }
      return PartialView("PartialView", model);
}

What I would like to do is:

public ActionResult MyFunction(MyFunctionModel model)
{
          for (int i = 0; i < 4; i++) {
               Task.Delay(4000).Wait();    
               yield return PartialView("PartialView", model);
           }
}

but I know that I cannot use the yield operator with an ActionResult.

Edit: The final idea is to show results every time something is adding up, let's say like a flight search engine does, without waiting for the full list of elements.

@AlexeiLevenkov the final idea is to show results every time something is adding, let's say like any flight search engine does, without waiting for the full list of elements. — Francesco De Lisi, May 09 '17 at 06:54

score 1 · Answer 1 · edited May 23 '17 at 12:26

1

You would need to implement SingalR or long polling.

If you need to update your UI in progressive way as you mentioned about flight results.

edited May 23 '17 at 12:26

Community

1
1

answered May 09 '17 at 07:36

User3250

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Yield asynchronous results to a ASP PartialView

1 Answers1