InkAnalyzer.ContextNodeLinkDeleting (Evento)

Artículo
10/28/2008

Actualización: noviembre 2007

Se produce antes de que InkAnalyzer quite ContextLink de entre dos objetos ContextNode.

Espacio de nombres: System.Windows.Ink
Ensamblado: IAWinFX (en IAWinFX.dll)

Sintaxis

'Declaración
Public Event ContextNodeLinkDeleting As ContextNodeLinkDeletingEventHandler
'Uso
Dim instance As InkAnalyzer
Dim handler As ContextNodeLinkDeletingEventHandler

AddHandler instance.ContextNodeLinkDeleting, handler

public event ContextNodeLinkDeletingEventHandler ContextNodeLinkDeleting

public:
 event ContextNodeLinkDeletingEventHandler^ ContextNodeLinkDeleting {
    void add (ContextNodeLinkDeletingEventHandler^ value);
    void remove (ContextNodeLinkDeletingEventHandler^ value);
}

/** @event */
public void add_ContextNodeLinkDeleting (ContextNodeLinkDeletingEventHandler value)
/** @event */
public void remove_ContextNodeLinkDeleting (ContextNodeLinkDeletingEventHandler value)

JScript no admite eventos.

Comentarios

Utilice este evento cuando la aplicación mantenga su propia estructura de datos, que está sincronizada con la del objeto InkAnalyzer. Este evento se produce durante la fase de conciliación del análisis de entrada manuscrita o como respuesta a un método de InkAnalyzer que quita un objeto ContextLink de entre dos [T:System.Windows.Ink.ContextNode objects].

Para obtener más información sobre la sincronización entre los datos de la aplicación y InkAnalyzer, vea Data Proxy with Ink Analysis.

Ejemplos

En este ejemplo se define un método, AttachDataProxyEventHandlers, que asocia los controladores de eventos del proxy de datos a un objeto InkAnalyzer denominado theInkAnalyzer.

Private Sub AttachDataProxyEventHandlers() 
    ' If the document model supports on demand data proxy, then add an
    ' event handler for the PopulateContextNode event. This event is raised
    ' when the InkAnalyzer accesses a partially populated ContextNode created
    ' by the document model.
    If Me.theDocumentModel.SupportsOnDemandDataProxy Then
        AddHandler Me.theInkAnalyzer.PopulateContextNode, AddressOf Me.PopulateContextNode
    End If

    ' Add the other data proxy related event handlers. These events are raised
    ' by the InkAnalyzer to communicate ink analysis results to the document model.
    AddHandler Me.theInkAnalyzer.ContextNodeCreated, AddressOf Me.AddContextNode
    AddHandler Me.theInkAnalyzer.ContextNodeDeleting, AddressOf Me.RemoveContextNode
    AddHandler Me.theInkAnalyzer.ContextNodeLinkAdding, AddressOf Me.AddContextNodeLink
    AddHandler Me.theInkAnalyzer.ContextNodeLinkDeleting, AddressOf Me.RemoveContextNodeLink
    AddHandler Me.theInkAnalyzer.ContextNodeMovingToPosition, AddressOf Me.MoveContextNodeToPosition
    AddHandler Me.theInkAnalyzer.ContextNodePropertiesUpdated, AddressOf Me.UpdateContextNodeProperties
    AddHandler Me.theInkAnalyzer.ContextNodeReparenting, AddressOf Me.ReparentContextNode
    AddHandler Me.theInkAnalyzer.InkAnalyzerStateChanging, AddressOf Me.InkAnalyzer_StateChanging
    AddHandler Me.theInkAnalyzer.StrokesReparented, AddressOf Me.ReparentStrokes
    AddHandler Me.theInkAnalyzer.IntermediateResultsUpdated, AddressOf Me.ResultsAvailable
    AddHandler Me.theInkAnalyzer.ResultsUpdated, AddressOf Me.ResultsAvailable

End Sub 'AttachDataProxyEventHandlers

        private void AttachDataProxyEventHandlers()
        {
            // If the document model supports on demand data proxy, then add an
            // event handler for the PopulateContextNode event. This event is raised
            // when the InkAnalyzer accesses a partially populated ContextNode created
            // by the document model.
            if (this.theDocumentModel.SupportsOnDemandDataProxy)
            {
                this.theInkAnalyzer.PopulateContextNode +=
                    new PopulateContextNodeEventHandler(
                        this.PopulateContextNode);
            }

            // Add the other data proxy related event handlers. These events are raised
            // by the InkAnalyzer to communicate ink analysis results to the document model.
            this.theInkAnalyzer.ContextNodeCreated +=
                new ContextNodeCreatedEventHandler(
                    this.AddContextNode);
            this.theInkAnalyzer.ContextNodeDeleting +=
                new ContextNodeDeletingEventHandler(
                    this.RemoveContextNode);
            this.theInkAnalyzer.ContextNodeLinkAdding +=
                new ContextNodeLinkAddingEventHandler(
                    this.AddContextNodeLink);
            this.theInkAnalyzer.ContextNodeLinkDeleting +=
                new ContextNodeLinkDeletingEventHandler(
                    this.RemoveContextNodeLink);
            this.theInkAnalyzer.ContextNodeMovingToPosition +=
                new ContextNodeMovingToPositionEventHandler(
                    this.MoveContextNodeToPosition);
            this.theInkAnalyzer.ContextNodePropertiesUpdated +=
                new ContextNodePropertiesUpdatedEventHandler(
                    this.UpdateContextNodeProperties);
            this.theInkAnalyzer.ContextNodeReparenting +=
                new ContextNodeReparentingEventHandler(
                    this.ReparentContextNode);
            this.theInkAnalyzer.InkAnalyzerStateChanging +=
                new InkAnalyzerStateChangingEventHandler(
                    this.InkAnalyzer_StateChanging);
            this.theInkAnalyzer.StrokesReparented +=
                new StrokesReparentedEventHandler(
                    this.ReparentStrokes);
            this.theInkAnalyzer.IntermediateResultsUpdated +=
                new ResultsUpdatedEventHandler(
                    this.ResultsAvailable);
            this.theInkAnalyzer.ResultsUpdated +=
                new ResultsUpdatedEventHandler(
                    this.ResultsAvailable);
        }

En el ejemplo siguiente se define el método, RemoveContextNodeLink, que controla el evento ContextNodeLinkDeleting. La información del evento se pasa al objeto del modelo de documento, que se denomina theDocumentModel.

En este ejemplo no se proporciona la definición del modelo de documento ni se muestra cómo procesa la información que se le pasa.

'/ <summary>
'/ Handles the InkAnalyzer.ContextNodeLinkDeleting event.
'/ </summary>
'/ <param name="sender">The source of the event.</param>
'/ <param name="e">The event data.</param>
Private Sub RemoveContextNodeLink(ByVal sender As Object, ByVal e As ContextNodeLinkDeletingEventArgs) 
    Me.theDocumentModel.RemoveLink(e.LinkToBeDeleted)

End Sub 'RemoveContextNodeLink

        /// <summary>
        /// Handles the InkAnalyzer.ContextNodeLinkDeleting event.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The event data.</param>
        private void RemoveContextNodeLink(
            object sender, ContextNodeLinkDeletingEventArgs e)
        {
            this.theDocumentModel.RemoveLink(e.LinkToBeDeleted);
        }

Plataformas

Windows Vista

.NET Framework y .NET Compact Framework no admiten todas las versiones de cada plataforma. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.