Clear

public void Clear()

Document doc = new Document(MyDir + "Document.docx");

// This document has one section with a few child nodes containing and displaying all the document's contents.
Assert.AreEqual(1, doc.Sections.Count);
Assert.AreEqual(17, doc.Sections[0].GetChildNodes(NodeType.Any, true).Count);
Assert.AreEqual("Hello World!\r\rHello Word!\r\r\rHello World!", doc.GetText().Trim());

// Clear the collection of sections, which will remove all of the document's children.
doc.Sections.Clear();

Assert.AreEqual(0, doc.GetChildNodes(NodeType.Any, true).Count);
Assert.AreEqual(string.Empty, doc.GetText().Trim());