ContextNodeTypeBase-Klasse

Artikel
11/26/2008

Definiert Werte, die den Typ des ContextNode-Objekts angeben.

Namespace: System.Windows.Ink.AnalysisCore
Assembly: IACore (in IACore.dll)

Syntax

'Declaration
Public NotInheritable Class ContextNodeTypeBase
'Usage
Dim instance As ContextNodeTypeBase

public sealed class ContextNodeTypeBase

public ref class ContextNodeTypeBase sealed

public final class ContextNodeTypeBase

public final class ContextNodeTypeBase

Hinweise

Die ContextNodeBase.Type-Eigenschaft und die InkAnalyzerBase.FindNodesOfType-Methode verwenden häufig die Felder dieser Klasse.

Beispiele

In diesem Beispiel wird die Text-Eigenschaft des TextBox-Objekts selectedResultsTextBox, auf eine passende Zeichenfolge für einen ContextNodeBase, selectedNode festgelegt. Das Beispiel verwendet die Type-Eigenschaft, um abhängig vom Typ des ContextNodeBase-Objekts die Art des anzuzeigenden Texts auszuwählen.

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);

}

Vererbungshierarchie

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

Threadsicherheit

Alle öffentlichen static (Shared in Visual Basic)-Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.

Plattformen

Windows Vista, Windows XP SP2, Windows Server 2003

.NET Framework und .NET Compact Framework unterstützen nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen für .NET Framework.