selection cardinality & collection cardinality

[Former Member]

Hi,

What is selection cardinality & collection cardinality? and

Which combination of collection cardinality, the selection cardinality is not applicable?

[Former Member]

Hi Krishna,

Selection Cardinality :

When a node is created in the context of a Web Dynpro component, the cardinality of the node is specified. The cardinality defines how often a node is to be instantiated at runtime – that is, how many elements of this node are available at runtime.

·        1…1        Only one element is instantiated.

·        0…1        At runtime, no more than one element is instantiated, but it is also possible that no element is instantiated.

·        1…n        n elements can be instantiated, but at least one element must be instantiated.

·        0…n        The number of instantiated elements of the context node can vary.