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ModificationOutsideTransactionException

Class
Description:
The exception that is thrown by the undo transaction framework when the modification operation to the model is outside of a transaction.
Inheritance Hierarchy:
System.Object
  System.Exception
    Autodesk.Revit.Exceptions.ApplicationException
      Autodesk.Revit.Exceptions.InvalidOperationException
        Autodesk.Revit.Exceptions.ModificationOutsideTransactionException
Syntax
[SerializableAttribute]
public class ModificationOutsideTransactionException : InvalidOperationException