2.CurrentAspectRatioModeProperty to DirectProperty. 3.Fix misspelling: Updata -> Update 4.IsUseAspectRatioRange to an internal CLR property.
2.CurrentAspectRatioModeProperty to DirectProperty. 3.Fix misspelling: Updata -> Update 4.IsUseAspectRatioRange to an internal CLR property.