ContextNode.Type 屬性

發行項
10/29/2008

取得這個 ContextNode 物件的內容節點型別。

命名空間： Microsoft.Ink
組件： Microsoft.Ink.Analysis (在 Microsoft.Ink.Analysis.dll 中)

語法

'宣告
Public ReadOnly Property Type As Guid
'用途
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

屬性值

型別：System.Guid
這個 ContextNode 物件的內容節點型別。

備註

如需型別 GUID 值，請參閱 ContextNodeType 類別。

範例

下列範例示範如何使用 ContextNode 物件 (變數名稱為 selectedNode) 的 Type 屬性。視節點的型別而定，會填入不同的 TextBox (英文) (變數名稱為 selectedResultsTextBox) 文字。大部分情況下會使用辨識字串，但是針對 InkWord 會使用行的辨識字串，而且會在 TextBox (英文) 中選取字。

Select Case selectedNode.Type
    Case Microsoft.Ink.ContextNodeType.WritingRegion
        Dim writingRegion As WritingRegionNode = _
            CType(selectedNode, WritingRegionNode)
        selectedResultsTextBox.Text = writingRegion.GetRecognizedString()
    Case Microsoft.Ink.ContextNodeType.Paragraph
        Dim paragraph As ParagraphNode = _
            CType(selectedNode, ParagraphNode)
        selectedResultsTextBox.Text = paragraph.GetRecognizedString()
    Case Microsoft.Ink.ContextNodeType.Line
        Dim line As LineNode = _
            CType(selectedNode, LineNode)
        selectedResultsTextBox.Text = line.GetRecognizedString()
    Case Microsoft.Ink.ContextNodeType.InkWord
        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
        ' Show the time stamp
        If inkWord.ContainsPropertyData(Me.timeStampGuid) Then
            Dim timeStamp As DateTime = _
                CType(inkWord.GetPropertyData(Me.timeStampGuid), DateTime)
            timeStampLabel.Text = timeStamp.ToShortTimeString()
        End If

        ' Snippet to demonstrate GetPropertyDataIds
        Dim propertyDataIds() As Guid = inkWord.GetPropertyDataIds()

        ' Snippets to demonstrate loading and saving
        Dim data As Byte() = inkWord.SavePropertiesData()
        If (Not inkWord.LoadPropertiesData(data)) Then
            MessageBox.Show("Cannot load property data")
        End If
    Case Microsoft.Ink.ContextNodeType.InkDrawing
        Dim drawingNode As InkDrawingNode = CType(selectedNode, InkDrawingNode)
        selectedResultsTextBox.Text = drawingNode.GetShapeName()
    Case Microsoft.Ink.ContextNodeType.InkBullet
        Dim bulletNode As InkBulletNode = CType(selectedNode, InkBulletNode)
        selectedResultsTextBox.Text = bulletNode.GetRecognizedString()
    Case Microsoft.Ink.ContextNodeType.Object
        Dim selectedObject As ObjectNode = selectedNode
        selectedResultsTextBox.Text = selectedObject.GetRecognizedString()
    Case Microsoft.Ink.ContextNodeType.CustomRecognizer
        Dim customRecognizer As CustomRecognizerNode = selectedNode
        selectedResultsTextBox.Text = customRecognizer.GetRecognizedString()
    Case Else
        selectedResultsTextBox.Text = String.Empty
End Select

                if (selectedNode.Type == Microsoft.Ink.ContextNodeType.WritingRegion)
                {
                    WritingRegionNode writingRegion = (WritingRegionNode)selectedNode;
                    selectedResultsTextBox.Text = writingRegion.GetRecognizedString();
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Paragraph)
                {
                    ParagraphNode paragraph = (ParagraphNode)selectedNode;
                    selectedResultsTextBox.Text = paragraph.GetRecognizedString();
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Line)
                {
                    LineNode line = (LineNode)selectedNode;
                    selectedResultsTextBox.Text = line.GetRecognizedString();
                }
                else if (selectedNode.Type == Microsoft.Ink.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 = 0;
                        int length = 0;
                        parentLine.GetTextRangeFromNodes(subNodes, out start, out length);
                        if (start >= 0 && length > 0)
                        {
                            selectedResultsTextBox.Select(start, length);
                        }
                    }
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.InkDrawing)
                {
                    InkDrawingNode drawingNode = (InkDrawingNode)selectedNode;
                    selectedResultsTextBox.Text = drawingNode.GetShapeName();
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.InkBullet)
                {
                    InkBulletNode bulletNode = (InkBulletNode)selectedNode;
                    selectedResultsTextBox.Text = bulletNode.GetRecognizedString();
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.CustomRecognizer)
                {
                    CustomRecognizerNode customRecognizer = (CustomRecognizerNode)selectedNode;
                    selectedResultsTextBox.Text = customRecognizer.GetRecognizedString();
                }
                else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Object)
                {
                    ObjectNode selectedObject = (ObjectNode)selectedNode;
                    selectedResultsTextBox.Text = selectedObject.GetRecognizedString();
                }
                else
                {
                    selectedResultsTextBox.Text = String.Empty;
                }