ITextUndoHistoryRegistry Interface
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Maps context objects to ITextUndoHistory objects and is meant to be exposed by a component part.
public interface class ITextUndoHistoryRegistrypublic interface class ITextUndoHistoryRegistry__interface ITextUndoHistoryRegistrypublic interface ITextUndoHistoryRegistrytype ITextUndoHistoryRegistry = interfacePublic Interface ITextUndoHistoryRegistryRemarks
This is a MEF component part, and should be imported as follows:
[Import]
ITextUndoHistoryRegistry registry = null;
Methods
| AttachHistory(Object, ITextUndoHistory) |
Attaches an existing ITextUndoHistory to a new context. The context must not already be mapped in this registry. |
| GetHistory(Object) |
Gets a history associated with the context, but does not create a new one. |
| RegisterHistory(Object) |
Gets, and if necessary creates, a history associated with the context. |
| RemoveHistory(ITextUndoHistory) |
Removes all mappings to a given ITextUndoHistory in this registry, if any exist. |
| TryGetHistory(Object, ITextUndoHistory) |
Gets a history associated with the context, but does not create a new one. |