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Evento InkAnalyzerBase.ContextNodeCreatedBase

Aggiornamento: novembre 2007

Si verifica dopo che l'analizzatore dell'input penna crea ContextNodeBase.

Spazio dei nomi:  System.Windows.Ink.AnalysisCore
Assembly:  IACore (in IACore.dll)

Sintassi

'Dichiarazione
Public Event ContextNodeCreatedBase As ContextNodeCreatedBaseEventHandler
'Utilizzo
Dim instance As InkAnalyzerBase
Dim handler As ContextNodeCreatedBaseEventHandler

AddHandler instance.ContextNodeCreatedBase, handler
public event ContextNodeCreatedBaseEventHandler ContextNodeCreatedBase
public:
 event ContextNodeCreatedBaseEventHandler^ ContextNodeCreatedBase {
    void add (ContextNodeCreatedBaseEventHandler^ value);
    void remove (ContextNodeCreatedBaseEventHandler^ value);
}
/** @event */
public void add_ContextNodeCreatedBase (ContextNodeCreatedBaseEventHandler value)
/** @event */
public void remove_ContextNodeCreatedBase (ContextNodeCreatedBaseEventHandler value)
JScript non supporta gli eventi.

Note

Utilizzare questo evento nel caso in cui l'applicazione gestisce una struttura di dati personalizzata, sincronizzata con quella dell'oggetto InkAnalyzerBase. Questo evento si verifica durante la fase di riconciliazione dell'analisi dell'input penna o in risposta a un metodo dell'analizzatore dell'input penna che crea ContextNodeBase.

Quando l'analizzatore dell'input penna crea un nodo di contesto, il nuovo nodo di contesto non contiene tratti, non contiene collegamenti ad altri nodi di contesto e potrebbe non avere tutte le relative proprietà impostate. Inoltre, il nuovo nodo di contesto viene aggiunto alla fine dell'insieme SubNodes dell'elemento padre. Dopo questo evento, l'analizzatore dell'input penna può generare i seguenti eventi.

Per ulteriori informazioni sulla sincronizzazione dei dati applicazioni con InkAnalyzerBase, vedere Data Proxy with Ink Analysis.

Esempi

Nell'esempio seguente viene definito un metodo, AttachDataProxyEventHandlers, che associa i gestori di eventi del proxy di dati a un oggetto InkAnalyzerBase, baseInkAnalyzer.

Private Sub AttachDataProxyEventHandlers()
    ' If the document model supports on demand data proxy, then add an
    ' event handler for the PopulateContextNodeBase event. This event is raised
    ' when the InkAnalyzerBase accesses a partially populated ContextNodeBase
    ' created by the document model.
    If Me.baseDocumentModel.SupportsOnDemandDataProxy Then
        AddHandler Me.baseInkAnalyzer.PopulateContextNodeBase, AddressOf Me.PopulateContextNodeBase
    End If

    ' Add the other data proxy related event handlers. These events are raised
    ' by the InkAnalyzer to communicate parsing results to the document model.
    AddHandler Me.baseInkAnalyzer.ContextNodeCreatedBase, _
        AddressOf Me.AddContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeDeletingBase, _
        AddressOf Me.RemoveContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkAddingBase, _
        AddressOf Me.AddContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkDeletingBase, _
        AddressOf Me.RemoveContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeMovingToPositionBase, _
        AddressOf Me.MoveContextNodeBaseToPosition
    AddHandler Me.baseInkAnalyzer.ContextNodePropertiesUpdatedBase, _
        AddressOf Me.UpdateContextNodeBaseProperties
    AddHandler Me.baseInkAnalyzer.ContextNodeReparentingBase, _
        AddressOf Me.ReparentContextNodeBase
    AddHandler Me.baseInkAnalyzer.InkAnalyzerStateChangingBase, _
        AddressOf Me.InkAnalyzerBase_StateChanging
    AddHandler Me.baseInkAnalyzer.StrokesReparentedBase, _
        AddressOf Me.ReparentStroke
    AddHandler Me.baseInkAnalyzer.IntermediateResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable
    AddHandler Me.baseInkAnalyzer.ResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable

End Sub 'AttachDataProxyEventHandlers
        private void AttachDataProxyEventHandlers()
        {
            // If the document model supports on demand data proxy, then add an
            // event handler for the PopulateContextNodeBase event. This event is raised
            // when the InkAnalyzerBase accesses a partially populated ContextNodeBase
            // created by the document model.
            if (this.baseDocumentModel.SupportsOnDemandDataProxy)
            {
                this.baseInkAnalyzer.PopulateContextNodeBase +=
                    new System.Windows.Ink.AnalysisCore.PopulateContextNodeBaseEventHandler(
                        this.PopulateContextNodeBase);
            }

            // Add the other data proxy related event handlers. These events are raised
            // by the InkAnalyzer to communicate parsing results to the document model.
            this.baseInkAnalyzer.ContextNodeCreatedBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeCreatedBaseEventHandler(
                    this.AddContextNodeBase);
            this.baseInkAnalyzer.ContextNodeDeletingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeDeletingBaseEventHandler(
                    this.RemoveContextNodeBase);
            this.baseInkAnalyzer.ContextNodeLinkAddingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeLinkAddingBaseEventHandler(
                    this.AddContextNodeLinkBase);
            this.baseInkAnalyzer.ContextNodeLinkDeletingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeLinkDeletingBaseEventHandler(
                    this.RemoveContextNodeLinkBase);
            this.baseInkAnalyzer.ContextNodeMovingToPositionBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeMovingToPositionBaseEventHandler(
                    this.MoveContextNodeBaseToPosition);
            this.baseInkAnalyzer.ContextNodePropertiesUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodePropertiesUpdatedBaseEventHandler(
                    this.UpdateContextNodeBaseProperties);
            this.baseInkAnalyzer.ContextNodeReparentingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeReparentingBaseEventHandler(
                    this.ReparentContextNodeBase);
            this.baseInkAnalyzer.InkAnalyzerStateChangingBase +=
                new System.Windows.Ink.AnalysisCore.InkAnalyzerStateChangingBaseEventHandler(
                    this.InkAnalyzerBase_StateChanging);
            this.baseInkAnalyzer.StrokesReparentedBase +=
                new System.Windows.Ink.AnalysisCore.StrokesReparentedBaseEventHandler(
                    this.ReparentStroke);
            this.baseInkAnalyzer.IntermediateResultsUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
                    this.BaseResultsAvailable);
            this.baseInkAnalyzer.ResultsUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
                    this.BaseResultsAvailable);
        }

Nell'esempio seguente viene definito un metodo, AddContextNodeBase, che gestisce l'evento ContextNodeCreatedBase. Le informazioni relative all'evento vengono passate all'oggetto modello di documento, baseDocumentModel.

In questo esempio non viene fornita la definizione del modello di documento né viene illustrato come vengono elaborate le informazioni passate a tale modello.

''' <summary>
''' Handles the InkAnalyzerBase.ContextNodeCreatedBase event.
''' </summary>
''' <param name="sender">The source of the event.</param>
''' <param name="e">The event data.</param>
''' <remarks>
''' Note: when this event is fired, the ContextNodeBase has not been populated
''' with extended and other properties. Handle the ContextNodePropertiesUpdatedBase
''' event to populate the corresponding ContextNodeBase in the document model.
''' </remarks>
Private Sub AddContextNodeBase( _
    ByVal sender As Object, _
    ByVal e As System.Windows.Ink.AnalysisCore.ContextNodeCreatedBaseEventArgs)

    ' Do not add unclassified ink nodes to the document model.
    If System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.UnclassifiedInk <> e.NodeCreated.Type Then
        Me.baseDocumentModel.AddNode(e.NodeCreated)
    End If

End Sub 'AddContextNodeBase
        /// <summary>
        /// Handles the InkAnalyzerBase.ContextNodeCreatedBase event.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The event data.</param>
        /// <remarks>
        /// Note: when this event is fired, the ContextNodeBase has not been populated
        /// with extended and other properties. Handle the ContextNodePropertiesUpdatedBase
        /// event to populate the corresponding ContextNodeBase in the document model.
        /// </remarks>
        private void AddContextNodeBase(
            object sender, System.Windows.Ink.AnalysisCore.ContextNodeCreatedBaseEventArgs e)
        {
            // Do not add unclassified ink nodes to the document model.
            if (System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.UnclassifiedInk
                != e.NodeCreated.Type)
            {
                this.baseDocumentModel.AddNode(e.NodeCreated);
            }
        }

Piattaforme

Windows Vista, Windows XP SP2, Windows Server 2003

.NET Framework e .NET Compact Framework non supportano tutte le versioni di ciascuna piattaforma. Per un elenco delle versioni supportate, vedere Requisiti di sistema di .NET Framework.

Informazioni sulla versione

.NET Framework

Supportato in: 3.0

Vedere anche

Riferimenti

InkAnalyzerBase Classe

Membri InkAnalyzerBase

Spazio dei nomi System.Windows.Ink.AnalysisCore

InkAnalyzerBase.ContextNodeDeletingBase

InkAnalyzerBase.ContextNodeLinkAddingBase

InkAnalyzerBase.ContextNodeMovingToPositionBase

InkAnalyzerBase.ContextNodePropertiesUpdatedBase

InkAnalyzerBase.StrokesReparentedBase