Structures Collection Method: Remove 
Purpose
Removes a Structure object from a Structures collection object.
Syntax
The Remove method has the syntax:
Object Remove(Variant vaIndex)
Description
Removes the Structure object indexed by vaIndex. The meaning of vaIndex is similar to that of the
Item property.It is not possible to remove a Structure object with Type trvTreeStructureHierarchy. In order to remove a hierarchy-typed item, the Table Tree object’s
Type property must be set to trvTreeTypeLeafs.