Classe ContextNodeTypeBase

Articolo
10/29/2008

Aggiornamento: novembre 2007

Definisce i valori che specificano il tipo di oggetto ContextNode.

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

Sintassi

'Dichiarazione
Public NotInheritable Class ContextNodeTypeBase
'Utilizzo
Dim instance As ContextNodeTypeBase

public sealed class ContextNodeTypeBase

public ref class ContextNodeTypeBase sealed

public final class ContextNodeTypeBase

public final class ContextNodeTypeBase

Note

La proprietà ContextNodeBase.Type e il metodo InkAnalyzerBase.FindNodesOfType utilizzano spesso i campi di questa classe.

Esempi

In questo esempio viene impostata la proprietà Text di un oggetto TextBox, selectedResultsTextBox, per visualizzare una stringa appropriata per un oggetto ContextNodeBase, selectedNode. Viene utilizzata la proprietà Type per scegliere il tipo di testo da visualizzare, in base al tipo dell'oggetto ContextNodeBase.

If (selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString) AndAlso _
   (selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.WritingRegion OrElse _
    selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Paragraph OrElse _
    selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.CustomRecognizer OrElse _
    selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Object OrElse _
    selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line)) Then

    selectedResultsTextBox.Text = _
        CType(selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString), String)

ElseIf (selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord) Then
    Dim parentNode As ContextNodeBase = selectedNode.ParentNode
    If (parentNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line AndAlso _
            parentNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString)) Then

        ' Put parent line's recognized string into the text box
        selectedResultsTextBox.Text = _
            CType(parentNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString), String)

        ' Select the text that corresponds to the ink word
        Dim subNodes As New ContextNodeBaseCollection(theInkAnalyzerBase)
        subNodes.Add(selectedNode)
        Dim start As Integer
        Dim length As Integer
        theInkAnalyzerBase.GetTextRangeFromNodes(subNodes, start, length)
        If (start >= 0 AndAlso length > 0) Then
            selectedResultsTextBox.Select(start, length)
        End If
    End If
ElseIf (selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing AndAlso _
        selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName)) Then

    selectedResultsTextBox.Text = _
        CType(selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName), String)

End If

if (selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString) &&
   (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.WritingRegion ||
    selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Paragraph ||
    selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.CustomRecognizer ||
    selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Object ||
    selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line))
{
    selectedResultsTextBox.Text =
        (string)selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString);
}
else if (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord)
{
    ContextNodeBase parentNode = selectedNode.ParentNode;
    if (parentNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line &&
        parentNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString))
    {
        // Put parent line's recognized string into the text box
        selectedResultsTextBox.Text =
            (string)parentNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString);

        // Select the text that corresponds to the ink word
        ContextNodeBaseCollection subNodes = new ContextNodeBaseCollection(theInkAnalyzerBase);
        subNodes.Add(selectedNode);
        int start;
        int length;
        theInkAnalyzerBase.GetTextRangeFromNodes(subNodes, out start, out length);
        if (start >= 0 && length > 0)
        {
            selectedResultsTextBox.Select(start, length);
        }
    }
}
else if (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing &&
         selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName))
{
    selectedResultsTextBox.Text =
        (string)selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName);

}

Gerarchia di ereditarietà

System.Object
System.Windows.Ink.AnalysisCore.ContextNodeTypeBase

Codice thread safe

Qualsiasi membro static (Shared in Visual Basic) pubblico di questo tipo è thread-safe. I membri di istanza non sono garantiti come thread-safe.

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.