	Name	Description
	NHistoryServiceSchema	Schema associated with NHistoryService
	RedoExecutedEvent	Reference to the RedoExecuted event
	TransactionCommitedEvent	Reference to the TransactionRolledback event
	TransactionRolledbackEvent	Reference to the TransactionRolledback event
	TransactionStartedEvent	Reference to the TransactionStarted event
	UndoExecutedEvent	Reference to the UndoExecuted event
	UnitRecordedEvent	Reference to the UnitRecorded event

	Name	Description
	IsRedoing	Determines whether the history service is currently redoing an unit
	IsUndoing	Determines whether the history service is currently undoing an unit
	IsUndoingOrRedoing	Determines whether the history service is currently undoing or redoing an unit
	MaxUndoLevels	Controls the max depth of the undo stack. Setting this property will automatically clear the extra units in the undo stack. By default set to 100.
	OwnerDocument	Gets the resolving document. The resolving document is the root document monitored by this history service.
	RedoStack	Gets the Redo units stack
	TransactionStack	Gets the Transaction units stack
	UndoStack	Gets the Undo units stack
	UndoStackDepth	The current undo stack depth. Note that this value may be different than the count of items in the UndoStack, since the UndoStack depth cannot exceed MaxUndoLevels.

	Name	Description
	CanRecord	Determines whether a new unit can be recorded. The history cannot record any unit if it is not in started state, or is currently undoing or redoing an unit.
	CanRedo	Determines whether the user can perform Redo.
	CanUndo	Determines whether the user can perform Undo.
	CommitTransaction	Commits the last started transaction.
	DumpRedoStackToObjectsList
	DumpToListBoxes	Dumps the state of the undo and redo stacks in the specified ListBox instances.
	DumpToTreeViews	Dumps the state of the undo and redo stacks in the specified TreeView instances.
	DumpUndoStackToObjectsList
	Record	Records the specified unit. If there are no started transactions, the unit is pushed in the undo stack and the redo stack is cleared. It there is a started transaction, the unit is appended as a child unit of the transaction unit.
	Redo	Redoes the peak unit from the redo stack and pushes in the undo stack.
	RollbackTransaction	Rolls back the currently started transaction and undoes the effect of the units recorded in it.
	StartTransaction	Overloaded. Starts a new history transaction. Transactions are units, which are pushed in the transaction stack and their recording is suspended until the CommitTransaction method is called.
	Undo	Undoes the peak unit from the undo stack and pushes in the redo stack.

	Name	Description
	OnRedoExecuted	Called when an unit has been successfully redone
	OnStoped	Overridden. Overriden to clear the state of the history service
	OnTransactionCommited	Called when a transaction has been commited
	OnTransactionRolledback	Called when the last started transaction has been rolled back
	OnTransactionStarted	Called when a transaction has been started
	OnUndoExecuted	Called when an unit has been successfully undone
	OnUnitRecorded	Called whenever an unit has been recored in the undo stack

	Name	Description
	RedoExecuted	Occurs when redo is executed
	TransactionCommited	Occurs when a transaction has been commited
	TransactionRolledback	Occurs when a transaction has been rolled back
	TransactionStarted	Occurs when a transaction has been started
	UndoExecuted	Occurs when undo is executed
	UnitRecorded	Occurs when a new unit has been recorded