CompositionScopeDefinition.Changing 事件

定义

当基础目录正在更改时发生 (如果目录支持通知)。

public:
 virtual event EventHandler<System::ComponentModel::Composition::Hosting::ComposablePartCatalogChangeEventArgs ^> ^ Changing;
public event EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs> Changing;
public event EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs>? Changing;
member this.Changing : EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs> 
Public Custom Event Changing As EventHandler(Of ComposablePartCatalogChangeEventArgs) 
Public Event Changing As EventHandler(Of ComposablePartCatalogChangeEventArgs) 

事件类型

实现

适用于