XPathNavigator.NodeType Property
Definition
Important
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When overridden in a derived class, gets the XPathNodeType of the current node.
public:
abstract property System::Xml::XPath::XPathNodeType NodeType { System::Xml::XPath::XPathNodeType get(); };
public abstract System.Xml.XPath.XPathNodeType NodeType { get; }
member this.NodeType : System.Xml.XPath.XPathNodeType
Public MustOverride ReadOnly Property NodeType As XPathNodeType
Property Value
One of the XPathNodeType values representing the current node.
Examples
The following example iterates over the node tree recursively, and displays information about Element and Text nodes.
static void XPathNavigatorMethods_MoveToNext()
{
XPathDocument^ document = gcnew XPathDocument("books.xml");
XPathNavigator^ navigator = document->CreateNavigator();
XPathNodeIterator^ nodeset = navigator->Select("descendant::book[author/last-name='Melville']");
while (nodeset->MoveNext())
{
// Clone iterator here when working with it.
RecursiveWalk(nodeset->Current->Clone());
}
}
static void RecursiveWalk(XPathNavigator^ navigator)
{
switch (navigator->NodeType)
{
case XPathNodeType::Element:
if (navigator->Prefix == String::Empty)
Console::WriteLine("<{0}>", navigator->LocalName);
else
Console::Write("<{0}:{1}>", navigator->Prefix, navigator->LocalName);
Console::WriteLine("\t" + navigator->NamespaceURI);
break;
case XPathNodeType::Text:
Console::WriteLine("\t" + navigator->Value);
break;
}
if (navigator->MoveToFirstChild())
{
do
{
RecursiveWalk(navigator);
} while (navigator->MoveToNext());
navigator->MoveToParent();
if (navigator->NodeType == XPathNodeType::Element)
Console::WriteLine("</{0}>", navigator->Name);
}
else
{
if (navigator->NodeType == XPathNodeType::Element)
{
Console::WriteLine("</{0}>", navigator->Name);
}
}
}
static void XPathNavigatorMethods_MoveToNext()
{
XPathDocument document = new XPathDocument("books.xml");
XPathNavigator navigator = document.CreateNavigator();
XPathNodeIterator nodeset = navigator.Select("descendant::book[author/last-name='Melville']");
while (nodeset.MoveNext())
{
// Clone iterator here when working with it.
RecursiveWalk(nodeset.Current.Clone());
}
}
public static void RecursiveWalk(XPathNavigator navigator)
{
switch (navigator.NodeType)
{
case XPathNodeType.Element:
if (string.IsNullOrEmpty(navigator.Prefix))
Console.WriteLine("<{0}>", navigator.LocalName);
else
Console.Write("<{0}:{1}>", navigator.Prefix, navigator.LocalName);
Console.WriteLine("\t" + navigator.NamespaceURI);
break;
case XPathNodeType.Text:
Console.WriteLine("\t" + navigator.Value);
break;
}
if (navigator.MoveToFirstChild())
{
do
{
RecursiveWalk(navigator);
} while (navigator.MoveToNext());
navigator.MoveToParent();
if (navigator.NodeType == XPathNodeType.Element)
Console.WriteLine("</{0}>", navigator.Name);
}
else
{
if (navigator.NodeType == XPathNodeType.Element)
{
Console.WriteLine("</{0}>", navigator.Name);
}
}
}
Shared Sub XPathNavigatorMethods_MoveToNext()
Dim document As XPathDocument = New XPathDocument("books.xml")
Dim navigator As XPathNavigator = document.CreateNavigator()
Dim nodeset As XPathNodeIterator = navigator.Select("descendant::book[author/last-name='Melville']")
While nodeset.MoveNext()
' Clone iterator here when working with it.
RecursiveWalk(nodeset.Current.Clone())
End While
End Sub
Shared Sub RecursiveWalk(ByVal navigator As XPathNavigator)
Select Case navigator.NodeType
Case XPathNodeType.Element
If navigator.Prefix = String.Empty Then
Console.WriteLine("<{0}>", navigator.LocalName)
Else
Console.Write("<{0}:{1}>", navigator.Prefix, navigator.LocalName)
Console.WriteLine(vbTab + navigator.NamespaceURI)
End If
Case XPathNodeType.Text
Console.WriteLine(vbTab + navigator.Value)
End Select
If navigator.MoveToFirstChild() Then
Do
RecursiveWalk(navigator)
Loop While (navigator.MoveToNext())
navigator.MoveToParent()
If (navigator.NodeType = XPathNodeType.Element) Then
Console.WriteLine("</{0}>", navigator.Name)
End If
Else
If navigator.NodeType = XPathNodeType.Element Then
Console.WriteLine("</{0}>", navigator.Name)
End If
End If
End Sub
The example takes the books.xml
file as an input.
<?xml version="1.0" encoding="utf-8" ?>
<bookstore>
<book genre="autobiography" publicationdate="1981-03-22" ISBN="1-861003-11-0">
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Benjamin</first-name>
<last-name>Franklin</last-name>
</author>
<price>8.99</price>
</book>
<book genre="novel" publicationdate="1967-11-17" ISBN="0-201-63361-2">
<title>The Confidence Man</title>
<author>
<first-name>Herman</first-name>
<last-name>Melville</last-name>
</author>
<price>11.99</price>
</book>
<book genre="philosophy" publicationdate="1991-02-15" ISBN="1-861001-57-6">
<title>The Gorgias</title>
<author>
<name>Plato</name>
</author>
<price>9.99</price>
</book>
</bookstore>
Applies to
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