MailMessage.Dispose 方法

定义

释放由 MailMessage 占用的资源。Releases the resources used by the MailMessage.

重载

Dispose(Boolean)

释放由 MailMessage 占用的非托管资源,还可以另外再释放托管资源。Releases the unmanaged resources used by the MailMessage and optionally releases the managed resources.

Dispose()

释放由 MailMessage 使用的所有资源。Releases all resources used by the MailMessage.

Dispose(Boolean)

释放由 MailMessage 占用的非托管资源,还可以另外再释放托管资源。Releases the unmanaged resources used by the MailMessage and optionally releases the managed resources.

protected:
 virtual void Dispose(bool disposing);
protected virtual void Dispose (bool disposing);
abstract member Dispose : bool -> unit
override this.Dispose : bool -> unit
Protected Overridable Sub Dispose (disposing As Boolean)

参数

disposing
Boolean

若要释放托管资源和非托管资源,则为 true;若仅释放非托管资源,则为 falsetrue to release both managed and unmanaged resources; false to release only unmanaged resources.

注解

此方法由公共 Dispose() 方法和 Finalize 方法调用。This method is called by the public Dispose() method and the Finalize method. Dispose() 调用受保护的 Dispose(Boolean) 方法,并将 disposing 参数设置为 trueDispose() invokes the protected Dispose(Boolean) method with the disposing parameter set to true. FinalizeDispose在设置为的情况调用 disposing falseFinalize invokes Dispose with disposing set to false.

disposing 参数为 true 时,此方法释放该引用的任何托管对象所持有的所有资源 MailMessageWhen the disposing parameter is true, this method releases all resources held by any managed objects that this MailMessage references. 此方法调用每个引用对象的 Dispose() 方法。This method invokes the Dispose() method of each referenced object.

继承者说明

Dispose 可以由其他对象多次调用。 Dispose can be called multiple times by other objects. 当重写时, Dispose(Boolean) 请注意不要引用先前在调用时已释放的对象 DisposeWhen overriding Dispose(Boolean) be careful not to reference objects that have been previously disposed of in an earlier call to Dispose. 有关如何实现的详细信息 Dispose(Boolean) ,请参阅 [实现 Dispose 方法](/dotnet/standard/garbage-collection/implementing-dispose)。For more information about how to implement Dispose(Boolean), see [Implementing a Dispose Method](/dotnet/standard/garbage-collection/implementing-dispose).

有关和的详细 Dispose 信息 Finalize() ,请参阅 清理非托管资源重写 Finalize 方法For more information about Dispose and Finalize(), see Cleaning Up Unmanaged Resources and Overriding the Finalize Method.

适用于

Dispose()

释放由 MailMessage 使用的所有资源。Releases all resources used by the MailMessage.

public:
 virtual void Dispose();
public void Dispose ();
abstract member Dispose : unit -> unit
override this.Dispose : unit -> unit
Public Sub Dispose ()

实现

示例

下面的代码示例演示如何释放 MailMessageThe following code example demonstrates disposing a MailMessage.

注解

使用完 Dispose 后调用 MailMessage 方法。Call the Dispose method when you are finished using the MailMessage. Dispose 方法使 MailMessage 处于不可用状态。The Dispose method leaves the MailMessage in an unusable state. 调用后 Dispose ,必须释放对的所有引用, MailMessage 以便垃圾回收器能够回收占用的内存 MailMessageAfter calling Dispose, you must release all references to the MailMessage so the garbage collector can reclaim the memory that the MailMessage was occupying. 有关详细信息,请参阅 清理非托管资源实现 Dispose 方法For more information, see Cleaning Up Unmanaged Resources and Implementing a Dispose Method.

备注

每次释放对 Dispose 的最后一个引用前,均应调用 MailMessageAlways call Dispose before you release your last reference to the MailMessage.

适用于