Creates a light type object from the given document and family type ID 
   Namespace:   Autodesk.Revit.DB.Lighting  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
  Since:  2013 
Syntax
| C# | 
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| Visual Basic | 
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| Visual C++ | 
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document the typeId is from
- typeId
-  Type:  Autodesk.Revit.DB ElementId  
 The ID of the light family type
Return Value
The newly created LightType objectExamples
 Copy  C#
 Copy  C# public LightType GetLightTypeFromLightSymbol(Document document)
{
    if (document.IsFamilyDocument) // not used in family document
        return null;
    // In order to get the light infromation, please get a light fixture symbol first
    FilteredElementCollector collector = new FilteredElementCollector(document);
    collector.OfClass(typeof(FamilySymbol)).OfCategory(BuiltInCategory.OST_LightingFixtures);
    FamilySymbol lightSymbo = collector.Cast<FamilySymbol>().First<FamilySymbol>();
    if (lightSymbo == null)    // check null reference
        return null;
    // Get the LightType for given light fixture sybmol
    return LightType.GetLightType(document, lightSymbo.Id);
} Copy  VB.NET
 Copy  VB.NET Public Function GetLightTypeFromLightSymbol(document As Document) As LightType
   If document.IsFamilyDocument Then
      ' not used in family document
      Return Nothing
   End If
   ' In order to get the light infromation, please get a light fixture symbol first
   Dim collector As New FilteredElementCollector(document)
   collector.OfClass(GetType(FamilySymbol)).OfCategory(BuiltInCategory.OST_LightingFixtures)
   Dim lightSymbo As FamilySymbol = collector.Cast(Of FamilySymbol)().First()
   If lightSymbo Is Nothing Then
      ' check null reference
      Return Nothing
   End If
   ' Get the LightType for given light fixture sybmol
   Return LightType.GetLightType(document, lightSymbo.Id)
End FunctionExceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | The ElementId is the argument that is being validated The ElementId is not valid because it is not for a light element. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was null |