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It seems that the underlying entityData object becomes null after calling CancelChanges.  Any further accesses of the Entity's data members throw null reference exceptions. The CancelChanges functionality is crucial to our implementation.

Thanks 

 On further investigation, it seems that _originalData is null. I am continuing the investigation.

 I think the problem may stem from the fact the Entities I am working on are in a TList<T>. The contents of this list were added by calling another list's CopyTo method. I am guessing there's some cloning going on which omits the originalData.

Bug still not fixed in Version 2.2 Rev 705!

Example:

OrderEntity order = new OrderEntity();

order.CancelChanges();

EntityState state = order.EntityState;

=> Exception !

_originalData is null => entityData becomes null forever!

Current code:

///<summary>

/// Revert all changes and restore original values.

///</summary>

public override void CancelChanges()

{

IEditableObject obj = (IEditableObject) this;

obj.CancelEdit();

this.entityData = null;

if (this._originalData != null)

{

this.entityData = this._originalData.Clone() as EventsEntityData;

}

}

Hello,

We have added this to our to-do list. You can check the status of this here

Thanks

-Blake