Gets the collection of PageColumn objects associated with the current page layout. Note that accessing this property initializes the collection of column definitions if it has not been initialized yet. Use HasColumns to test whether any columns have been defined on this layout.

'宣言
 
Public ReadOnly Property Columns As PageColumnCollection

'使用法
 
Dim instance As PageLayout
Dim value As PageColumnCollection
 
value = instance.Columns

public PageColumnCollection Columns {get;}