Collection object
Stores an ordered group of items that can be iterated or keyed.
Dim items As New CollectionThis static page keeps the syntax and examples indexed for search, while the coding app handles interactive exploration and saved references.
What it does
Overview
Stores an ordered group of items that can be iterated or keyed.
Collection gives VBA a built-in container for grouping objects or values without managing worksheet storage directly. It works well for moderate in-memory grouping and ordered processing, but lookups by key are weaker than Scripting.Dictionary when you need fast repeated existence checks.
Quick reference
Syntax
Dim items As New Collection
See it in practice
Examples
Queue worksheets for export
Dim sheetsToExport As New Collection
sheetsToExport.Add Worksheets("Report")
sheetsToExport.Add Worksheets("Summary")A Collection is useful when a macro needs an ordered list of workbook objects to process.
Debug faster
Common Errors
Run-time error
Cause: Trying to access a missing key or index directly.
Fix: Guard key lookups or handle errors when the requested item may not exist.
Runtime support
Compatibility
Common questions
Frequently Asked Questions
Stores an ordered group of items that can be iterated or keyed.
Run-time error: Guard key lookups or handle errors when the requested item may not exist.