How to return empty view in controller if string is not null?

Question

In my controller I have some code, and final part which is returning all results to my view is:

public ActionResult Index(SearchParameters parameters)
{
... some code ...
var view = new SpremenljivkeView
{
    Spremenljivke = matchingSpremenljivke,
    Search = parameters,
    TotalCount = matchingSpremenljivke.NumFound,
};

return View("../Login/Index", view);
}

Now I whant to send results in View if string in parameters (Internal number) are not empty or null. If is null, return empty value, if not return view with results.

I have try this:

...
if (!string.IsNullOrEmpty(parameters.Internal))
{
  var view = new SpremenljivkeView
  {
    Spremenljivke = matchingSpremenljivke,
    Search = parameters,
    TotalCount = matchingSpremenljivke.NumFound,
  };

  return View("../Login/Index", view);
}

But return View cannot be inside If sentece. Any idea how to correct this...

Thanks for any ideas.

Ehsan Sajjad · Accepted Answer · 2014-06-12 07:23:46Z

2

you need to return EmptyResult in else part as Action nneds to return ActionResult:

if (!string.IsNullOrEmpty(parameters.Internal))
{
  var view = new SpremenljivkeView
  {
    Spremenljivke = matchingSpremenljivke,
    Search = parameters,
    TotalCount = matchingSpremenljivke.NumFound,
  };

  return View("../Login/Index", view);
}
else
{
return new EmptyResult();
}

and if you want to return same view without values then return only view in else part:

return View("../Login/Index");

answered Jun 12, 2014 at 7:23

Ehsan Sajjad

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