AbsolutePositionTabAccept Method

public override bool Accept(
	DocumentVisitor visitor
)

Public Overrides Function Accept ( 
	visitor As DocumentVisitor
) As Boolean

public:
virtual bool Accept(
	DocumentVisitor^ visitor
) override

abstract Accept : 
        visitor : DocumentVisitor -> bool 
override Accept : 
        visitor : DocumentVisitor -> bool 

public void DocumentToTxt()
{
    // This document contains two sentences separated by an absolute position tab
    Document doc = new Document(MyDir + "Absolute position tab.docx");

    // An AbsolutePositionTab is a child node of a paragraph
    // AbsolutePositionTabs get picked up when looking for nodes of the SpecialChar type
    Paragraph para = doc.FirstSection.Body.FirstParagraph;
    AbsolutePositionTab absPositionTab = (AbsolutePositionTab)para.GetChild(NodeType.SpecialChar, 0, true);

    // This implementation of the DocumentVisitor pattern converts the document to plain text
    DocToTxtWriter myDocToTxtWriter = new DocToTxtWriter();

    // We can run the DocumentVisitor over the whole first paragraph
    para.Accept(myDocToTxtWriter);

    // A tab character is placed where the AbsolutePositionTab was found
    Assert.AreEqual("Before AbsolutePositionTab\tAfter AbsolutePositionTab", myDocToTxtWriter.GetText());

    // An AbsolutePositionTab can accept a DocumentVisitor by itself too
    myDocToTxtWriter = new DocToTxtWriter();
    absPositionTab.Accept(myDocToTxtWriter);

    Assert.AreEqual("\t", myDocToTxtWriter.GetText());
}

/// <summary>
/// Visitor implementation that simply collects the Runs and AbsolutePositionTabs of a document as plain text. 
/// </summary>
public class DocToTxtWriter : DocumentVisitor
{
    public DocToTxtWriter()
    {
        mBuilder = new StringBuilder();
    }

    /// <summary>
    /// Called when a Run node is encountered in the document.
    /// </summary>
    public override VisitorAction VisitRun(Run run)
    {
        AppendText(run.Text);
        // Let the visitor continue visiting other nodes.
        return VisitorAction.Continue;
    }

    /// <summary>
    /// Called when an AbsolutePositionTab node is encountered in the document.
    /// </summary>
    public override VisitorAction VisitAbsolutePositionTab(AbsolutePositionTab tab)
    {
        // We'll treat the AbsolutePositionTab as a regular tab in this case
        mBuilder.Append("\t");
        return VisitorAction.Continue;
    }

    /// <summary>
    /// Adds text to the current output. Honors the enabled/disabled output flag.
    /// </summary>
    private void AppendText(string text)
    {
        mBuilder.Append(text);
    }

    /// <summary>
    /// Gets the plain text of the document that was accumulated by the visitor.
    /// </summary>
    public string GetText()
    {
        return mBuilder.ToString();
    }

    private readonly StringBuilder mBuilder;
}