Counting a collection in Dreamweaver Templates

Many times in your Dreamweaver Template you want to count the number of field values of a multivalued field, or the number of Components in an array.

There is a way to count a collection in the Package, but the documentation regarding the built-in functions available within Dreamweaver templates is not very extensive.

Before you start writing a .NET Template that counts a collection and pushes this number into a Package Item, take a look at:

[TemplateCallable]

public int CollectionLength(string expression)

The expression passed to the method equals the fully qualified name of the Package Item and a value selector.

The following example will return the number of values of the paragraphs field.

@@CollectionLength("Component.Fields.paragraphs")@@