是否有可能同时具有GET和POST异步控制器操作？

Question

是否有可能具有同名GET和POST操作的AsyncController？

public class HomeController : AsyncController 
{ 
    [HttpGet] 
    public void IndexAsync() 
    { 
     // ... 
    } 

    [HttpGet] 
    public ActionResult IndexCompleted() 
    { 
     return View(); 
    } 

    [HttpPost] 
    public void IndexAsync(int id) 
    { 
     // ... 
    } 

    [HttpPost] 
    public ActionResult IndexCompleted(int id) 
    { 
     return View(); 
    } 
} 

当我尝试这样做我得到了一个错误：

Lookup for method 'IndexCompleted' on controller type 'HomeController' failed because of an ambiguity between the following methods:
System.Web.Mvc.ActionResult IndexCompleted() on type Web.Controllers.HomeController System.Web.Mvc.ActionResult IndexCompleted(System.Int32) on type Web.Controllers.HomeController

是否有可能让他们共存以任何方式或是否每个异步操作方法必须是唯一的？

Answer 1

你可以有多个IndexAsync方法，但只有一个IndexCompleted方法如：

public class HomeController : AsyncController 
{ 
    [HttpGet] 
    public void IndexAsync() 
    { 
    AsyncManager.OutstandingOperations.Increment(1); 
    // ... 
     AsyncManager.Parameters["id"] = null; 
     AsyncManager.OutstandingOperations.Decrement(); 
    // ... 
    } 

    [HttpPost] 
    public void IndexAsync(int id) 
    { 
    AsyncManager.OutstandingOperations.Increment(1); 
    // ... 
     AsyncManager.Parameters["id"] = id; 
     AsyncManager.OutstandingOperations.Decrement(); 
    // ... 
    } 

    public ActionResult IndexCompleted(int? id) 
    { 
    return View(); 
    } 
} 

（只有在MethodNameAsync方法属性是通过MVC使用的，因此不需要在MethodNameCompleted方法）