Form.Dispose(Boolean) 方法

定义

处置由 Form 占用的资源(内存除外)。Disposes of the resources (other than memory) used by the Form.

protected:
 override void Dispose(bool disposing);
protected override void Dispose (bool disposing);
override this.Dispose : bool -> unit
Protected Overrides Sub Dispose (disposing As Boolean)

参数

disposing
Boolean

true 表示释放托管资源和非托管资源;false 表示仅释放非托管资源。true 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. Finalize 调用 disposing 设置为 falseDisposeFinalize invokes Dispose with disposing set to false.

disposing 参数为 true 时,此方法释放该 Form 引用的、由任何托管对象持有的全部资源。When the disposing parameter is true, this method releases all resources held by any managed objects that this Form 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.

如果使用 Show 方法显示窗体,则将自动调用 DisposeDispose will be called automatically if the form is shown using the Show method. 如果使用了其他方法(如 ShowDialog)或窗体根本不显示,则必须在应用程序中调用 DisposeIf another method such as ShowDialog is used, or the form is never shown at all, you must call Dispose yourself within your application.

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. 重写 Dispose(Boolean) 时,请注意不要引用在以前调用 Dispose 时已释放的对象。When 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 Dispose(Boolean) 的详细信息,请参阅[实现 Dispose 方法](~/docs/standard/garbage-collection/implementing-dispose.md)。For more information about how to implement Dispose(Boolean), see [Implementing a Dispose Method](~/docs/standard/garbage-collection/implementing-dispose.md). 有关 DisposeFinalize() 的详细信息,请参阅[清理非托管资源](~/docs/standard/garbage-collection/unmanaged.md)和[重写 Finalize 方法](https://docs.microsoft.com/previous-versions/dotnet/netframework-4.0/ddae83kx(v=vs.100))。For more information about Dispose and Finalize(), see [Cleaning Up Unmanaged Resources](~/docs/standard/garbage-collection/unmanaged.md) and [Overriding the Finalize Method](https://docs.microsoft.com/previous-versions/dotnet/netframework-4.0/ddae83kx(v=vs.100)).

适用于