ASP.Net MVC Controller Actions that return void

Question

If I have the following controller action...

public void DoSomething()
{
}

will the framework actually convert it to this?

Answer 1

Seems so, check the source code of ControllerActionInvoker.cs. I haven't verified it, but logic tells me that a void return will set actionReturnValue to null, so an EmptyResult is generated. This is the most recent source code, haven't checked the source for ASP.net MVC 1.0.

protected virtual ActionResult CreateActionResult(ControllerContext controllerContext, ActionDescriptor actionDescriptor, object actionReturnValue) {
    if (actionReturnValue == null) {
        return new EmptyResult();
    }

    ActionResult actionResult = (actionReturnValue as ActionResult) ??
        new ContentResult { Content = Convert.ToString(actionReturnValue, CultureInfo.InvariantCulture) };
    return actionResult;
}