UndoUnit Derived Classes, Properties and Methods Reference

Topic Overview

This topic lists the derived classes and some of the important properties and methods of the UndoUnit class.

This topic contains the following sections:

The UndoUnit is the base class for an undoable operation added to the undo/redo history.

It exposes methods for retrieving the string description of an operation, executing an operation and optionally merging the results of an operation.

The following table summarizes the purpose of the UndoUnit derived classes.

Class	Description
CollectionChangeUndoUnit	This class is used for reverting the changes to an ICollection .
PropertyChangeUndoUnit	This class is used for reverting the changes to a single CLR property.
PropertyChangeUndoUnitBase	This class is base class for an `UndoUnit` and represents a change of a single property value.
UndoTransaction	This class is a custom UndoUnit class that contains one or more UndoUnits. For more information, refer to the Methods and Properties Reference for Performing Transactions topic.

The following table summarizes the purpose and functionality of the UndoUnit class key properties.

Property	Description
Target	Returns the target object that will be affected by the UndoUnit .

The following table summarizes the purpose and functionality of the UndoUnit class key methods.

Method	Description
GetDescription	Returns a string representation of the action based on whether this is for an undo or redo operation.

The following topics provide additional information related to this topic.

Topic	Purpose
ObservableCollectionExtendedWithUndo Properties Reference	This topic lists some of the important properties of the ObservableCollectionExtendedWithUndo class.
UndoHistoryItem Properties and Methods Reference	This topic lists the properties and methods of the UndoHistoryItem class.
UndoManager Properties and Methods Reference	This topic lists some of the important properties and methods of the UndoManager class.
UndoUnitFactory Properties and Methods Reference	This topic lists some of the important properties and methods of the UndoUnitFactory class.