WPF 集合空间绑定，自定义布局

<ScrollViewer Height="100" VerticalScrollBarVisibility="Auto">
    <ItemsControl ItemsSource="{Binding TestList}">
        <ItemsControl.ItemsPanel>
            <ItemsPanelTemplate>
                <WrapPanel />
            </ItemsPanelTemplate>
        </ItemsControl.ItemsPanel>
        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <hc:SimpleStackPanel Margin="10,5">
                    <Button
                        Height="80"
                        Background="#DDD"
                        Command="{Binding AddPageCommand}">
                        <hc:SimpleStackPanel Orientation="Vertical">
                            <Image
                                Width="40"
                                Height="40"
                                Margin="0,5"
                                Source="./../WPF/Asset/Image/完整视图.png" />
                            <TextBlock
                                HorizontalAlignment="Center"
                                FontWeight="Bold"
                                Foreground="{StaticResource PrimaryBrush}"
                                Text="111122221" />
                        </hc:SimpleStackPanel>
                    </Button>
                </hc:SimpleStackPanel>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>
</ScrollViewer>