P

SaveAsOptions.PreviewViewId

Description:
The view id that will be used to generate the preview; this id is not saved to the document's permanent settings.

Remarks:
If this id is set to a view id, the indicated view will be used to generate the preview even if DocumentPreviewSettings.PreviewViewId is also set.

public ElementId PreviewViewId { get; set; }

Public Property PreviewViewId As ElementId
Get
Set

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

Autodesk.Revit.Exceptions.ArgumentNullException

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