Level Bounding box return null

[ahmadeltobshy]

Hey everybody i have a small issue i have face hoping someone helping me

i have collected some annotation elements like Levels, ElevationMarker and so on ..

when i snoop these elements using Revit Lookup i found these elements have boundingbox and there are min and max values 

but when i try to get these bounding boxes or min/max value in code there are always NullReferenceException

as the image shows below 

i also try to assign a view/3Dview to .get_BoundingBox method instead of having null argument but still getting null all the times.

anyone have any idea what this happens? 

[naveen.kumar.t]

Hi @ahmadeltobshy ,

The view should be a 3d view.

Could you please try opening the 3d view in the project and use "doc.activeview"?

BoundingBoxXYZ boundingBox = Level.get_BoundingBox(doc.ActiveView) as BoundingBoxXYZ;
if (boundingBox!=null)
{
XYZ maxPoint = boundingBox.Max;
XYZ minPoint = boundingBox.Min;
}

[caroline.gitonga · Accepted solution]

Hi,
You could try to pass the document active view

BoundingBoxXYZ bounding = elem.get_BoundingBox(doc.ActiveView);
XYZ max = bounding.Max;
XYZ xYZ = bounding.Min;
From the Revit Doc , it says

If the view box is not known or cannot be calculated, this will return the model box; if the model box is not known, this will return a null reference ( Nothing in Visual Basic)

[ahmadeltobshy]

Thank You it works for me.

[ahmadeltobshy]

Thank you i have read revit docs, and by passing a view this returns a value.