The background fill pattern Id.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2019

Syntax

C#
public ElementId BackgroundPatternId { get; set; }
Visual Basic
Public Property BackgroundPatternId As ElementId
	Get
	Set
Visual C++
public:
property ElementId^ BackgroundPatternId {
	ElementId^ get ();
	void set (ElementId^ value);
}

Remarks

The FillPattern used for a background pattern must have a 'Drafting' target. This applies to both project and family elements. In addition, when the FilledRegionAttributes element is in a family, the pattern cannot be the solid fill pattern unless the 'IsMasking' property is set to true. InvalidElementId is used when there is no background pattern

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentException When setting this property: The patternId must either be InvalidElementId or represent a valid FillPatternElement. -or- When setting this property: The patternId must be a 'Drafting' pattern. -or- When setting this property: In a family the patternId can not be a solid fill pattern if the 'IsMasking' property is false.
Autodesk.Revit.Exceptions..::..ArgumentNullException When setting this property: A non-optional argument was null

See Also