ContextNode.Type Property

Articolo
12/12/2007

Gets the context node type for this ContextNode object.

Namespace: System.Windows.Ink
Assembly: IAWinFX (in iawinfx.dll)
XML Namespace: https://schemas.microsoft.com/winfx/2006/xaml/presentation

Syntax

'Declaration
Public ReadOnly Property Type As Guid
'Usage
Dim instance As ContextNode
Dim value As Guid

value = instance.Type

public Guid Type { get; }

public:
property Guid Type {
    Guid get ();
}

/** @property */
public Guid get_Type ()

public function get Type () : Guid

Not applicable.

Property Value

The context node type for this ContextNode object.

Example

The following example shows how to use the Type property of a ContextNode object, selectedNode. The text of a TextBox, selectedResultsTextBox, is populated differently depending on the type of node. In most cases, the recognized string is used, but for InkWord, the line's recognized string is used, and the word is selected in the TextBox.

If selectedNode.Type = ContextNodeType.WritingRegion Then
    Dim writingRegion As WritingRegionNode = CType(selectedNode, WritingRegionNode)
    selectedResultsTextBox.Text = writingRegion.GetRecognizedString()
ElseIf selectedNode.Type = ContextNodeType.Paragraph Then
    Dim paragraph As ParagraphNode = CType(selectedNode, ParagraphNode)
    selectedResultsTextBox.Text = paragraph.GetRecognizedString()
ElseIf selectedNode.Type = ContextNodeType.Line Then
    Dim line As LineNode = CType(selectedNode, LineNode)
    selectedResultsTextBox.Text = line.GetRecognizedString()
ElseIf selectedNode.Type = ContextNodeType.InkWord Then
    Dim inkWord As InkWordNode = CType(selectedNode, InkWordNode)
    Dim parentNode As ContextNode = inkWord.ParentNode
    If TypeOf parentNode Is LineNode Then
        Dim parentLine As LineNode = CType(parentNode, LineNode)
        ' Put parent line's recognized string into the text box
        selectedResultsTextBox.Text = parentLine.GetRecognizedString()

        ' Select the text that corresponds to the ink word
        Dim subNodes As New ContextNodeCollection(theInkAnalyzer)
        subNodes.Add(inkWord)
        Dim start As Integer
        Dim length As Integer
        parentLine.GetTextRangeFromNodes(subNodes, start, length)
        If start >= 0 AndAlso length > 0 Then
            selectedResultsTextBox.Select(start, length)
        End If
    End If
ElseIf selectedNode.Type = ContextNodeType.InkDrawing Then
    Dim drawingNode As InkDrawingNode = CType(selectedNode, InkDrawingNode)
    selectedResultsTextBox.Text = drawingNode.GetShapeName()
ElseIf selectedNode.Type = ContextNodeType.InkBullet Then
    Dim bulletNode As InkBulletNode = CType(selectedNode, InkBulletNode)
    selectedResultsTextBox.Text = bulletNode.GetRecognizedString()
ElseIf selectedNode.Type = ContextNodeType.CustomRecognizer Then
    Dim customRecognizer As CustomRecognizerNode = CType(selectedNode, CustomRecognizerNode)
    selectedResultsTextBox.Text = customRecognizer.GetRecognizedString()
ElseIf selectedNode.Type = ContextNodeType.Object Then
    Dim selectedObject As ObjectNode = CType(selectedNode, ObjectNode)
    selectedResultsTextBox.Text = selectedObject.GetRecognizedString()
Else
    selectedResultsTextBox.Text = ""
End If

if (selectedNode.Type == ContextNodeType.WritingRegion)
{
    WritingRegionNode writingRegion = (WritingRegionNode)selectedNode;
    selectedResultsTextBox.Text = writingRegion.GetRecognizedString();
}
else if (selectedNode.Type == ContextNodeType.Paragraph)
{
    ParagraphNode paragraph = (ParagraphNode)selectedNode;
    selectedResultsTextBox.Text = paragraph.GetRecognizedString();
}
else if (selectedNode.Type == ContextNodeType.Line)
{
    LineNode line = (LineNode)selectedNode;
    selectedResultsTextBox.Text = line.GetRecognizedString();
}
else if (selectedNode.Type == ContextNodeType.InkWord)
{
    InkWordNode inkWord = (InkWordNode)selectedNode;
    ContextNode parentNode = inkWord.ParentNode;
    if (parentNode is LineNode)
    {
        LineNode parentLine = (LineNode)parentNode;
        // Put parent line's recognized string into the text box
        selectedResultsTextBox.Text = parentLine.GetRecognizedString();

        // Select the text that corresponds to the ink word
        ContextNodeCollection subNodes = new ContextNodeCollection(theInkAnalyzer);
        subNodes.Add(inkWord);
        int start;
        int length;
        parentLine.GetTextRangeFromNodes(subNodes, out start, out length);
        if (start >= 0 && length > 0)
        {
            selectedResultsTextBox.Select(start, length);
        }
    }
}
else if (selectedNode.Type == ContextNodeType.InkDrawing)
{
    InkDrawingNode drawingNode = (InkDrawingNode)selectedNode;
    selectedResultsTextBox.Text = drawingNode.GetShapeName();
}
else if (selectedNode.Type == ContextNodeType.InkBullet)
{
    InkBulletNode bulletNode = (InkBulletNode)selectedNode;
    selectedResultsTextBox.Text = bulletNode.GetRecognizedString();
}
else if (selectedNode.Type == ContextNodeType.CustomRecognizer)
{
    CustomRecognizerNode customRecognizer = (CustomRecognizerNode)selectedNode;
    selectedResultsTextBox.Text = customRecognizer.GetRecognizedString();
}
else if (selectedNode.Type == ContextNodeType.Object)
{
    ObjectNode selectedObject = (ObjectNode)selectedNode;
    selectedResultsTextBox.Text = selectedObject.GetRecognizedString();
}
else
{
    selectedResultsTextBox.Text = "";
}

Platforms

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

Version Information

.NET Framework

Supported in: 3.0

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