[.NET] Attributes特性筆記

Attributes特性

[AcceptVerbs(…)]

To specify HTTP verbs an action method will respond to.

要指定HTTP動詞的將響應的一個操作方法。

[ActionName(…)]

To define the name of an action

定義一個動作的名稱

[AdditionalMetadata(…)]

to populate the ModelMetadata.AdditionalValues​​ dictionary for a model property.

填充一個模型屬性的ModelMetadata.AdditionalValues​​字典。

[AllowHtml]

To allow HTML markup during model binding by skipping request validation for the property.

允許HTML標記在模型綁定通過跳過屬性的請求驗證。

[AsyncTimeout(…)]

To set the timeout value, in milliseconds, for an asynchronous method.

要設置超時值，以毫秒為單位的異步方法。

[Authorize(…)]

To restrict access by callers to an action method.

調用者的操作方法來限制訪問。

[ChildActionOnly]

To indicate that an action method should be called only as a child action.

要表明，作為一個的操作方法只應被子動作調用。

[HandleError(...)]

to handle an exception that is thrown by an action method.

處理異常就是將一個操作方法拋出。

[HiddenInput(…)]

To render a property or field value as a hidden input element.

為了呈現一個隱藏的輸入元素屬性或字段的值。

[HttpDelete]

to restrict an action method to handle only HTTP DELETE requests.

限制一個動作方法只處理HTTP DELETE請求。

[HttpGet]

to restrict an action method to handle only HTTP Get requests.

限制一個動作方法只處理HTTP GET請求。

[HttpPost]

to restrict an action method to handle only HTTP Post requests.

限制一個動作方法只處理HTTP POST請求。

[HttpPut]

to restrict an action method to handle only HTTP Put requests.

限制一個動作方法只處理HTTP PUT請求。

[ModelBinder(..)]

to associate a model type to a model-builder type.

關聯模型類型的模型生成器類型。

[NoAsyncTimeout]

To set the timeout to infinite (never).

要設置超時無限（從不）。

[NonAction]

To indicate that a controller method is not an action method.

為了表明控制器方法不是一個操作方法。

[OutputCache(..)]

To mark an action method whose output will be cached.

為了標記其產出將是緩存的一個操作方法。

[Remote(…)]

It is used to invoke the server-based validation from client side.

它是用於從客戶端調用基於服務器的驗證。

[RequireHttps]

It forces an unsecured HTTP request to be re-sent over HTTPS.

它迫使重新通過HTTPS發送不安全的HTTP請求。

[SessionState(…)]

Specifies the session state of the controller.

指定控制器的會話狀態。

[ValidateInput(...)]

To mark action methods whose input must be validated.

為了標記一個動作方法的輸入必須進行驗證。

from http://www.bdqn.cn/news/201310/11573.shtml

sample

using System;
namespace AttTargsCS
{

// 該Attribute只對類有效.
[AttributeUsage(AttributeTargets.Class)]
public class ClassTargetAttribute : Attribute
{
}


// 該Attribute只對方法有效.
[AttributeUsage(AttributeTargets.Method)]
public class MethodTargetAttribute : Attribute
{
}


// 該Attribute只對構造器有效。
[AttributeUsage(AttributeTargets.Constructor)]
public class ConstructorTargetAttribute : Attribute
{
}


// 該Attribute只對字段有效.
[AttributeUsage(AttributeTargets.Field)]
public class FieldTargetAttribute : Attribute
{
}


// 該Attribute對類或者方法有效（組合）.
[AttributeUsage(AttributeTargets.Class|AttributeTargets.Method)]
public class ClassMethodTargetAttribute : Attribute
{
}


// 該Attribute對所有的元素有效.
[AttributeUsage(AttributeTargets.All)]
public class AllTargetsAttribute : Attribute
{
}

//上面定義的Attribute施加到程序元素上的用法
[ClassTarget] //施加到類
[ClassMethodTarget]//施加到類
[AllTargets] //施加到類
public class TestClassAttribute
{
[ConstructorTarget] //施加到構造器
[AllTargets] //施加到構造器
TestClassAttribute()
{
}

[MethodTarget] //施加到方法
[ClassMethodTarget] //施加到方法
[AllTargets] //施加到方法
public void Method1()
{
}
 
[FieldTarget] //施加到字段
[AllTargets] //施加到字段
public int myInt;

static void Main(string[] args)
{
}
}
}