P

MEPSystemType.LinePatternId

Description:
Indicates the line pattern id that should override the line pattern id for all components in the system.

public ElementId LinePatternId { get; set; }

Public Property LinePatternId As ElementId
Get
Set

public:
property ElementId^ LinePatternId {
	ElementId^ get ();
	void set (ElementId^ value);
}

Autodesk.Revit.Exceptions.ArgumentNullException

When setting this property: A non-optional argument was null