CODEWITHSUNDEEP
jsonasp.net-mvc-2viewdatajsonresult
Chase Florell
Chase Florell

Reputation: 47437

ASP.NET MVC - Pass Json String to View using ViewData

I'm trying to pass Json to my View using ViewData

Controller

ViewData("JsonRegionList") = Json(RegionService.GetActiveRegions())

view

        $("input#UserRegion").autocomplete({
                source:"<%: ViewData("JsonRegionList").ToString %>",
                minLength: 3,

but the problem I'm running into is the output source looks like

        $("input#UserRegion").autocomplete({
                source:"System.Web.Mvc.JsonResult",
                minLength: 3,

which is obviously not right. Am I missing something basic?

Upvotes: 14

Views: 16540

Answers (1)

Jon Galloway
Jon Galloway

Reputation: 53155

The Json() controller method returns a JsonResult, which isn't the same as a JSON string. The JsonResult holds data, but the data is actually written directly to the response when the View Engine calls JsonResult.ExecuteResult(). That's all probably more information than you want there - the point is that calling Json() in a controller won't give you a string of JSON.

If you just want to turn your data into a JSON string, you can use the JavaScriptSerializer, which is what the Json() method uses internally:

JavaScriptSerializer serializer = new JavaScriptSerializer();
ViewData["JsonRegionList"] = serializer.Serialize(jsonRegionList);

Upvotes: 19

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