具有不同返回类型的操作方法的相同名称

Question

I've two action methods in my controller, both are called on POST request but have different return type:

public JsonResult AJAXCreate()

public string AJAXCreateNSave([Bind(Exclude = "Id, OrderItems")]Order order)

When I rename the second one to AJAXCreate, it is not called at all. I want to use same name for both action methods.

Answer 1

Much like operations in WCF services, no two actions can have the same name, unless they target different HTTP verbs, eg:

public ActionResult MyAction() { }

[HttpPost]
public ActionResult MyAction(MyModel model) { }

If you try and use two actions with the same name, MVC doesn't know which action to select.

Answer 2

Overloaded methods are not allowed in ASP.NET MVC without an attribute to specify a different action name. Check out this similar question and answer: Can you overload controller methods in ASP.NET MVC?