Dart

Traverse the XML Tree

See more XML Examples

Demonstrates how to traverse all nodes in an XML tree.

Note: This example requires Chilkat v9.5.0.77 or greater.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Use the NextInTraversal2 method to traverse all nodes in the XML tree rooted at the caller.

  final xml = CkXml();

  xml.loadXmlFile('qa_data/xml/twoPigs.xml');

  // This is the XML traversed in this example:

  // <pig-rescue>
  //   <herd name="Cathy">
  // 	<species name="pot belly pig">
  // 	    <animal>
  // 	        <name>Molly II</name>
  // 	        <birth>February, 1998</birth>
  // 			<in-date>January, 2000</in-date>
  // 			<from>Middle Ave.</from>
  // 			<gender spay-neuter="yes">F</gender>
  // 			<info>Molly came from a place where an old, ill man had too many animals.
  // 	              	The animals were seldom fed and rats would eat the newborn piglets.
  // 	             	 When Molly was found at one week old, she was the only piglet of 
  // 	              	her siblings who did not get stepped on by a cow. She is a sweet, 
  // 	              	friendly pig who likes to hang out on Cathy's porch on the lounge 
  // 	              	pad.
  // 			</info>
  // 		</animal>
  // 	    <animal>
  // 			<name>Nigel</name>
  // 			<birth>June, 1991</birth>
  // 			<in-date>August, 1991</in-date>
  // 			<from>Breeder</from>
  // 			<gender spay-neuter="no">M</gender>
  // 			<info>
  // 			 	Nigel was the first pig and the reason for the rescue in the
  // 			 	first place. He is 13 now and doing well, but takes a number 
  // 				of medications, as you can see below.
  // 			</info>
  // 		</animal>		
  // 	</species>
  //   </herd>
  // </pig-rescue>

  // The sbState is an object used to keep track of the current state of the traversal.
  final sbState = CkStringBuilder();
  while (xml.nextInTraversal2(sbState)) {

    print(xml.tag);
    print(xml.tagPath);
    print('');
  }

  // Produces the following output:

  // herd
  // herd
  // 
  // species
  // herd|species
  // 
  // animal
  // herd|species|animal[0]
  // 
  // name
  // herd|species|animal[0]|name
  // 
  // birth
  // herd|species|animal[0]|birth
  // 
  // in-date
  // herd|species|animal[0]|in-date
  // 
  // from
  // herd|species|animal[0]|from
  // 
  // gender
  // herd|species|animal[0]|gender
  // 
  // info
  // herd|species|animal[0]|info
  // 
  // animal
  // herd|species|animal[1]
  // 
  // name
  // herd|species|animal[1]|name
  // 
  // birth
  // herd|species|animal[1]|birth
  // 
  // in-date
  // herd|species|animal[1]|in-date
  // 
  // from
  // herd|species|animal[1]|from
  // 
  // gender
  // herd|species|animal[1]|gender
  // 
  // info
  // herd|species|animal[1]|info
  // 
}