'宣言 Public ReadOnly Property ThumbnailViewSplitterPanel As C1.Win.C1SplitContainer.C1SplitterPanel
'使用法 Dim instance As C1RibbonPreview Dim value As C1.Win.C1SplitContainer.C1SplitterPanel value = instance.ThumbnailViewSplitterPanel
public C1.Win.C1SplitContainer.C1SplitterPanel ThumbnailViewSplitterPanel {get;}