Columns object
The Columns object holds a collection of Column objects.  The Columns collection supports the following properties and methods:

  AddAdds a Column object to the collection and returns a reference to the newly created object. 
  ClearRemoves all objects in a collection. 
  CountReturns the number of objects in a collection. 
  ItemReturns a specific Column of the Columns collection. 
  ItemBySortPositionReturns a Column object giving its sorting position. 
  RemoveRemoves a specific member from the Columns collection. 
  SortBarColumnReturns the Column from control's SortBar giving its position. 
  SortBarColumnsCountRetrieves the count of Columns, in the control's SortBar