M

Element.GetTypeId

Description:
Returns the identifier of this element's type.

Remarks:
Some elements cannot have type assigned, in which case this method returns invalid element id.

public ElementId GetTypeId()

Public Function GetTypeId As ElementId

public:
ElementId^ GetTypeId()

ElementId The id of the element's type, or invalid element id if the element cannot have type assigned.

void GetStairType(Autodesk.Revit.DB.Document document)
{
   FilteredElementCollector collector = new FilteredElementCollector(document);
   ICollection<Element> stairs = collector.OfClass(typeof(FamilyInstance)).OfCategory(BuiltInCategory.OST_Stairs).ToElements();
   foreach (Element stair in stairs)
    {
        if (null == stair.GetTypeId())
        {
            TaskDialog.Show("Revit","No symbol found in stair element: " + stair.Name);
        }
        else
        {
            Element elemType = document.GetElement(stair.GetTypeId());
            string info = "Stair type is: " + elemType.Name;
            TaskDialog.Show("Revit",info);
        }
    }
}

Private Sub GetStairType(document As Autodesk.Revit.DB.Document)
    Dim collector As New FilteredElementCollector(document)
    Dim stairs As ICollection(Of Element) = collector.OfClass(GetType(FamilyInstance)).OfCategory(BuiltInCategory.OST_Stairs).ToElements()
    For Each stair As Element In stairs
        If stair.GetTypeId() Is Nothing Then
            TaskDialog.Show("Revit", "No symbol found in stair element: " + stair.Name)
        Else
            Dim elemType As Element = document.GetElement(stair.GetTypeId())
            Dim info As String = "Stair type is: " + elemType.Name
            TaskDialog.Show("Revit", info)
        End If
    Next
End Sub