Hello,
I am getting the below Exception on Model Change.
Exception Details:
- Error Type: System.InvalidOperationException
- Error Description: Collection was modified; enumeration operation may not execute.
- Source: mscorlib
- Stack Trace:
- at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
- at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
- at System.Collections.Generic.List`1.Enumerator.MoveNext()
- at Northwoods.GoXam.Model.UndoManager.#nt(String #i9)
- at Northwoods.GoXam.LayoutManager.#Yf()
- at Northwoods.GoXam.LayoutManager.#Xf()
- at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
- at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
- Target Site: Void ThrowInvalidOperationException(System.ExceptionResource)
- in System.ThrowHelper, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
- Error Type: System.InvalidOperationException
- Error Description: Collection was modified; enumeration operation may not execute.
- Source: mscorlib
- Stack Trace:
- at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
- at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
- at System.Collections.Generic.List`1.Enumerator.MoveNext()
- at Northwoods.GoXam.Model.UndoManager.#nt(String #i9)
- at Northwoods.GoXam.LayoutManager.#Yf()
- at Northwoods.GoXam.LayoutManager.#Xf()
- at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
- at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
- Target Site: Void ThrowInvalidOperationException(System.ExceptionResource)
- in System.ThrowHelper, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Exception Hierarchy:
- System.InvalidOperationException
-- System.SystemException
--- System.Exception
---- System.Object
- System.InvalidOperationException
-- System.SystemException
--- System.Exception
---- System.Object
Class Hierarchy:
- System.ThrowHelper
-- System.Object
- System.ThrowHelper
-- System.Object
It seems to be some issue in UndoManager.But unable to figure it out. Any help would be great.
Thanks,
Abdeali