| Name | Description | |
|---|---|---|
 | CanRedo | This predicate returns true if you can call Redo. |
| CanUndo | This predicate returns true if you can call Undo. |
| Clear | Forget any references that this object may have. |
| GetParam | This is a convenient method to get the right parameter value, depending on the value of undo. |
| GetValue | This is a convenient method to get the right value, depending on the value of undo. |
| Redo | Re-perform the document change after an Undo by calling ChangeModel. |
| ToString | Produce a human-readable description of the change to the model. |
| Undo | Reverse the effects of this document change by calling ChangeModel. |