Describes layout-related changes associated with a RenderObject. When an instance of this class is assigned to RenderObject.LayoutChangeBefore or RenderObject.LayoutChangeAfter on that object, a column break is inserted before of after that object, and layout changes described by the instance are applied.

'宣言
 
Public Class LayoutChangeNewColumn 
   Inherits LayoutChangeBase

'使用法
 
Dim instance As LayoutChangeNewColumn

public class LayoutChangeNewColumn : LayoutChangeBase