Some elements are not sized because the system calculation is none. You may change the system calculation level to size them again.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)

Syntax

C#
`public static FailureDefinitionId SizingCalculationNoneWarn { get; }`

Visual Basic
`Public Shared ReadOnly Property SizingCalculationNoneWarn As FailureDefinitionId Get`

Visual C++
`public: static property FailureDefinitionId^ SizingCalculationNoneWarn { FailureDefinitionId^ get (); }`

See Also