Udostępnij za pośrednictwem


ITextUndoHistoryRegistry Interface

Definition

Maps context objects to ITextUndoHistory objects and is meant to be exposed by a component part.

public interface class ITextUndoHistoryRegistry
public interface class ITextUndoHistoryRegistry
__interface ITextUndoHistoryRegistry
public interface ITextUndoHistoryRegistry
type ITextUndoHistoryRegistry = interface
Public Interface ITextUndoHistoryRegistry

Remarks

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.

Applies to