Power Fx function
Param — Power Fx function reference
Read a launch parameter.
Syntax
powerfx
Param( ParameterName )
Examples
powerfx
Param("recordId")→ Value from the URL
powerfx
If(!IsBlank(Param("caseId")), LookUp(Cases, CaseID = Param("caseId")))powerfx
UpdateContext({locMode: Coalesce(Param("mode"), "view")})Common mistakes & gotchas
- Param() always returns text, even for a numeric-looking value — wrap it in Value() before comparing to a numeric column.
- It only reads querystring parameters on the app's published URL, not values passed through Navigate's context record.
Related Power Fx functions
From App & navigation