Having a string containing the following raw Json data (simplified for the sake of the question):
var MyString = "{ 'val': 'apple' }";
How can I create a JsonResult object representing MyString?
I tried to use the Json(object) method. but it handles the raw json data as an string -logically :P-. So the returned HTTP response looks like:
"{ 'val': 'apple' }"
instead of the given raw Json Data:
{ 'val': 'apple' }
this is what I want to achieve:
I think you can use the JavaScriptSerializer class for this
var js = new System.Web.Script.Serialization.JavaScriptSerializer();
var jsonObject = js.Deserialize("{ 'val': 'apple' }", typeof(object));
The way I have generated json data from a string is by using JavaScriptResult in the controller:
public JavaScriptResult jsonList( string jsonString)
{
jsonString = "var jsonobject = new Array(" + jsonString + ");";
return JavaScript(jsonString)
}
Then when you request pass the json string to that action in your controller, the result will be a file with javascript headers.
The Json() method on Controller is actually a helper method that creates a new JsonResult. If we look at the source code for this class*, we can see that it's not really doing that much -- just setting the content type and passing the data object along to a JavaScriptSerializer before writing it. You can duplicate this behavior (minus the serialization) by returning a ContentResult from your controller instead.
public ActionResult JsonData(int id) {
var jsonStringFromSomewhere = "{ 'val': 'apple' }";
// Content() creates a ContentResult just as Json() creates a JsonResult
return Content(jsonStringFromSomewhere, "application/json");
}
* In MVC2, JsonResult also throws an exception if the user is making an HTTP GET request (as opposed to say a POST). Allowing users to retrieve JSON using an HTTP GET has security implications which you should be aware of before you permit this in your own app.