INotifyComposablePartCatalogChanged.Changing 事件
定义
在更改 ComposablePartCatalog 时发生。Occurs when a ComposablePartCatalog is changing.
public:
event EventHandler<System::ComponentModel::Composition::Hosting::ComposablePartCatalogChangeEventArgs ^> ^ Changing;
event EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs> Changing;
event EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs>? Changing;
member this.Changing : EventHandler<System.ComponentModel.Composition.Hosting.ComposablePartCatalogChangeEventArgs>
Event Changing As EventHandler(Of ComposablePartCatalogChangeEventArgs)