'宣言 Public Class FlexGridDetailProvider(Of TItem As Class) Inherits C1.WinUI.Core.C1Behavior(Of FlexGrid) Implements Microsoft.Xaml.Interactivity.IBehavior, WinRT.IWinRTObject
public class FlexGridDetailProvider<TItem> : C1.WinUI.Core.C1Behavior<FlexGrid>, Microsoft.Xaml.Interactivity.IBehavior, WinRT.IWinRTObject where TItem: class