data-attribute data-attribute-name of (attribute attribute-name element-qualifier* (indexer)? (indexer)? )
Differentiates between attributes that belong to an "entity" or "entities" attribute, and other attributes. It is used in the same way as
data-attribute references can be used in any context that permits
In the syntax, the parentheses are used to eliminate confusion between the two
item indexers. The first optional
item indexer (inside the parentheses) is associated with the attribute of the qualified element or external entity currently being processed. This attribute must be declared as "entity" or "entities". The second optional
[...] indexer (outside the parentheses) is associated with the data attribute named in the parenthesized attribute value item.
The following code illustrates the use of