'宣言 Public Class ExpanderButton Inherits C1.WinUI.Core.C1ToggleButton Implements Microsoft.UI.Composition.IAnimationObject, Microsoft.UI.Composition.IVisualElement, Microsoft.UI.Composition.IVisualElement2, WinRT.IWinRTObject
public class ExpanderButton : C1.WinUI.Core.C1ToggleButton, Microsoft.UI.Composition.IAnimationObject, Microsoft.UI.Composition.IVisualElement, Microsoft.UI.Composition.IVisualElement2, WinRT.IWinRTObject