Visual Basic for Applications Reference

Property let procedure not defined and property get procedure did not return an object (Error 451)

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Certain properties, methods, and operations can only apply to Collection objects. This error has the following cause and solution:

• You specified an operation or property that is exclusive to collections, but the object isn't a collection.

  Check the spelling of the object or property name, or verify that the object is a Collection object. Also look at the Add method used to add the object to the collection to be sure the syntax is correct and that any identifiers were spelled correctly.

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