Casting anonymous type to dynamic

Question

I have a function that returns an anonymous type which I want to test in my MVC controller.

public JsonResult Foo()
{
    var data = new
                  {
         


        

Answer 1

Anonymous type is a regular static type in .NET, it's just that you do not give it a name (a compiler, however, does). That's why casting it to dynamic will not work. However, if you have control over Foo(), you can construct and return a dynamic object instead of anonymous, and then your code is going to work. This should do the trick:

dynamic JsonResult Foo() {
    dynamic data = new ExpandoObject();
    data.details = "something";
    data.mode = "More";
    return Json(data);
}