BindableObject.PropertyChanging 事件

定义

重要

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在属性值更改时发生。

public:
 event Microsoft::Maui::Controls::PropertyChangingEventHandler ^ PropertyChanging;

public event Microsoft.Maui.Controls.PropertyChangingEventHandler PropertyChanging;

member this.PropertyChanging : Microsoft.Maui.Controls.PropertyChangingEventHandler

Public Event PropertyChanging As PropertyChangingEventHandler