傳遞列表<Enum>參數到ASP.NET MVC3中的自定義操作篩選器

Question

我如何解析列表到我自定義操作篩選器（如輸入參數）？

public class CustomFilter : ActionFilterAttribute 
{ 

    public List<MyEnumType> InputParameter { get; set; } 

    public override void OnActionExecuting(ActionExecutingContext filterContext) 
    {   
     base.OnActionExecuting(filterContext); 
    } 
} 

[CustomFilter(InputParameter = new List<MyEnumType>() { MyEnumType.Type })] 
public SomeActionInController() 
{ 
} 

我errror錯誤

'InputParameter' is not a valid named attribute argument because it is not a valid attribute parameter type 

Answer 1

行動濾波器參數是動作過濾器的性能：

[CustomFilter(InputParameter=10)] 
public SomeActionInController() 
{ 
} 

public class CustomFilter : ActionFilterAttribute 
{ 
    public int InputParameter { get; set; } 

    public override void OnActionExecuting(ActionExecutingContext filterContext) 
    { 
    // access this.InputParameter 

    base.OnActionExecuting(filterContext); 
    } 
} 

屬性參數類型僅限於本文所描述的類型 - http://msdn.microsoft.com/en-us/library/aa664615%28v=vs.71%29.aspx

您可以通過屬性constru傳遞一個集合這裏所描述的ctor - Can I initialize a C# attribute with an array or other variable number of arguments?