XmlTextReader.LinePosition Property
Assembly: System.Xml (in system.xml.dll)
 Note: |
|---|
| In the Microsoft .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the System.Xml.XmlReader.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers. |
This property is most commonly used for error reporting, but can be called at any time. The property's starting value is 1.
The position indicated is the first character of text in the markup.
<root> abc<tag/> </root>
On the first line of the preceding XML text, a LinePosition of 2 corresponds to the character r; on the second line, a LinePosition of 5 corresponds to the character t; and on the third line, a LinePosition of 3 corresponds to the character r.
Combined with LineNumber, a value of 1,1 indicates the start of the document.
The following example displays each node including its depth, line number, and line position.
using System; using System.IO; using System.Xml; public class Sample{ public static void Main(){ // Create the XML fragment to be parsed. string xmlFrag = @"<book> <misc> <style>paperback</style> <pages>240</pages> </misc> </book>"; // Create the XmlNamespaceManager. NameTable nt = new NameTable(); XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt); // Create the XmlParserContext. XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None); // Create the reader. XmlTextReader reader = new XmlTextReader(xmlFrag, XmlNodeType.Element, context); // Parse the XML and display each node. while (reader.Read()){ switch (reader.NodeType){ case XmlNodeType.Element: Console.Write("{0} {1},{2} ", reader.Depth, reader.LineNumber, reader.LinePosition); Console.WriteLine("<{0}>", reader.Name); break; case XmlNodeType.Text: Console.Write("{0} {1},{2} ", reader.Depth, reader.LineNumber, reader.LinePosition); Console.WriteLine(" {0}", reader.Value); break; case XmlNodeType.EndElement: Console.Write("{0} {1},{2} ", reader.Depth, reader.LineNumber, reader.LinePosition); Console.WriteLine("</{0}>", reader.Name); break; } } // Close the reader. reader.Close(); } }
import System.*;
import System.IO.*;
import System.Xml.*;
public class Sample
{
public static void main(String[] args)
{
// Create the XML fragment to be parsed.
String xmlFrag = "<book> \n" + " <misc>\n"
+ " <style>paperback</style> \n"
+ " <pages>240</pages>\n" + " </misc> \n"
+ " </book>";
// Create the XmlNamespaceManager.
NameTable nt = new NameTable();
XmlNamespaceManager nsMgr = new XmlNamespaceManager(nt);
// Create the XmlParserContext.
XmlParserContext context = new XmlParserContext(null, nsMgr, null,
XmlSpace.None);
// Create the reader.
XmlTextReader reader = new XmlTextReader(xmlFrag, XmlNodeType.Element,
context);
// Parse the XML and display each node.
while (reader.Read()) {
switch (reader.get_NodeType()) {
case XmlNodeType.Element:
Console.Write("{0} {1},{2} ", System.Convert.ToString(
reader.get_Depth()), System.Convert.ToString(reader.
get_LineNumber()), System.Convert.ToString(reader.
get_LinePosition()));
Console.WriteLine("<{0}>", reader.get_Name());
break;
case XmlNodeType.Text:
Console.Write("{0} {1},{2} ", System.Convert.ToString(
reader.get_Depth()), System.Convert.ToString(reader.
get_LineNumber()), System.Convert.ToString(reader.
get_LinePosition()));
Console.WriteLine(" {0}", reader.get_Value());
break;
case XmlNodeType.EndElement:
Console.Write("{0} {1},{2} ", System.Convert.ToString(
reader.get_Depth()), System.Convert.ToString(reader.
get_LineNumber()), System.Convert.ToString(reader.
get_LinePosition()));
Console.WriteLine("</{0}>", reader.get_Name());
break;
}
}
// Close the reader.
reader.Close();
} //main
} //Sample
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.