'宣言 Protected Overridable Function GetDefaultHeight() As Unit
'使用法 Dim instance As RenderObject Dim value As Unit value = instance.GetDefaultHeight()
protected virtual Unit GetDefaultHeight()
'宣言 Protected Overridable Function GetDefaultHeight() As Unit
'使用法 Dim instance As RenderObject Dim value As Unit value = instance.GetDefaultHeight()
protected virtual Unit GetDefaultHeight()