Tests that the given expression is a valid as formula for this parameter.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0)
Since: 2016 Subscription Update

Syntax

C#
`public bool IsValidFormula( string expression )`

Visual Basic
`Public Function IsValidFormula ( _ expression As String _ ) As Boolean`

Visual C++
`public: bool IsValidFormula( String^ expression )`

Remarks

Use this method to test validity of a formula before assigning it to a global parameter when in doubt whether it is an acceptable expression or not.

Exception	Condition
Autodesk.Revit.Exceptions ArgumentNullException	A non-optional argument was null