'宣言 Public Shared ReadOnly Property PrevHeight As LengthRef
'使用法 Dim value As LengthRef value = LengthRef.Predefined.PrevHeight
public static LengthRef PrevHeight {get;}
'宣言 Public Shared ReadOnly Property PrevHeight As LengthRef
'使用法 Dim value As LengthRef value = LengthRef.Predefined.PrevHeight
public static LengthRef PrevHeight {get;}