'Invalid direction of dimension' error when trying to create vertical dimension

[dem1st]

References get created fine (Z axis) but nevertheless when the program hits dimension creation it throws an error 'The direction of dimension is invalid.'

            XYZ p1z = new XYZ(-5, 5, 5);
            XYZ p2z = new XYZ(5, 5, 5);
            XYZ p3z = new XYZ(-5, 5, 10);
            XYZ p4z = new XYZ(5, 5, 10);
			
	    XYZ cutVecZ = new XYZ(0, 1, 0);

	using (Transaction t = new Transaction(doc, "Refplanes"))
            {
                    t.Start();                    
                    refplane1 = doc.FamilyCreate.NewReferencePlane(p1z, p2z, cutVecZ, uidoc.ActiveGraphicalView);
                    refplane2 = doc.FamilyCreate.NewReferencePlane(p3z, p4z, cutVecZ, uidoc.ActiveGraphicalView);
                    t.Commit();   
            }
		Line lin = Line.CreateBound(p1z, p3z);
                ReferenceArray ra = new ReferenceArray();
                ra.Append(refplane1.GetReference());
                ra.Append(refplane2.GetReference());

		using (Transaction t = new Transaction(doc, "Dimension"))
            {                
                t.Start();               
                var dim3 = doc.FamilyCreate.NewLinearDimension(uidoc.ActiveGraphicalView, lin, ra);
                t.Commit();
            }

[dem1st]

I guess in transaction I should set the active view to a different one, right? Is that the problem?

[dem1st · Accepted solution]

For anyone who got stuck with the same issue the solution is to store reference to the view you want your dimension to be on and use it when creating a new dimemnsion NewLinearDimension(pView, lin, ra)

Element FindElement(Autodesk.Revit.DB.Document docum, Type targetType, string targetName)
{
return new FilteredElementCollector(doc).OfClass(targetType).First<Element>(e => e.Name.Equals(targetName));
}



View pView = FindElement(doc, typeof(View), "Front") as View;



using (Transaction t = new Transaction(doc, "Dimension"))
{
t.Start();
var dim = doc.FamilyCreate.NewLinearDimension(pView, lin, ra);
t.Commit();
}

Thanks to Jeremy and XtraLabs!