Content-related ECExpressions
Rule condition
Content rules have a condition ECExpression property which defines which rules should
be applied for which instances. The following ECExpression symbols are available there:
| Symbol | Type | Value |
|---|---|---|
SelectedNode |
NavNode context | Expression context of NavNode the content is being requested for. |
ContentDisplayType |
string | Preferred display type of the content. It identifies which component will be used to show the content. |
SelectionProviderName |
string | Name of the selection handler that last changed the selection. |
IsSubSelection |
bool | Indicates whether the last selection event changed the main selection or sub selection. |
Additionally, Ruleset variable symbols are available as well.
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 |
|---|---|---|
this |
ECInstance context | ECInstance expression context of ECInstance that's currently being handled |
SelectedInstanceKeys |
ECInstanceKey context[] | A value list of primary ECInstance keys |
Additionally, User Setting symbols are available as well.
Property overrides
Some property overrides support ECExpressions to determine the value. Only Ruleset variable symbols are available in this ECExpression context.
Last Updated: 18 May, 2022