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Hierarchies-related ECExpressions

Rule condition

Child node rules have a condition ECExpression property which defines which rules should be applied for which parent nodes. The following ECExpression symbols are available there:

Symbol Type Value
ParentNode NavNode context The parent NavNode expression context.

Additionally, Ruleset variable symbols are available as well.

See this topic for an example.

Instance filter

ECExpressions that are specified in instanceFilter specification properties are converted to ECSQL WHERE clause, so they have some limitations - ony a subset of all the ECExpression symbols are available.

The below table lists all of them:

Symbol Type Value
parent ECInstance context The parent ECInstance expression context.
this ECInstance context ECInstance expression context of the ECInstance that's currently being handled.

Additionally, Ruleset variable symbols are available as well.

Specification

Symbols available in expressions evaluated at each node's level (e.g. hideExpression):

Symbol Type Value
ThisNode Node context NavNode expression context of the ECInstance that's currently being handled.
this ECInstance context ECInstance expression context of the ECInstance that's currently being handled.

Additionally, Ruleset variable symbols are available as well.

Last Updated: 15 May, 2024