Gets the collection of PageColumnDef 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 PageLayout.HasColumns to test whether any columns have been defined on this layout.

'宣言
 
Public ReadOnly Property Columns As PageColumnDefCollection

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

public PageColumnDefCollection Columns {get;}