Dart

Demonstrate the XML UpdateAttrAt Method

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Demonstrates the XML UpdateAttrAt method to update attribute name/value pairs in XML.

Note: This example requires Chilkat v9.5.0.64 or later.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Note: This example requires Chilkat v9.5.0.64 or later.
  final xml = CkXml();

  xml.tag = 'animals';

  final autoCreate = true;

  // When the autoCreate argument equals true, the UpdateAttrAt
  // method auto-creates the children as needed:
  xml.updateAttrAt('penguin', autoCreate, 'feature', 'flightless bird');
  xml.updateAttrAt('mammal|rodent|squirrel', autoCreate, 'feature', 'bushy tail');
  xml.updateAttrAt('mammal|rodent|rat', autoCreate, 'feature', 'long hairless tail');

  // Show the XML
  print(xml.getXml());

  // 	<?xml version="1.0" encoding="utf-8" ?>
  // 	<animals>
  // 	    <penguin feature="flightless bird" />
  // 	    <mammal>
  // 	        <rodent>
  // 	            <squirrel feature="bushy tail" />
  // 	            <rat feature="long hairless tail" />
  // 	        </rodent>
  // 	    </mammal>
  // 	</animals>
  // 

  // Now update each node's "feature" attribute..
  xml.updateAttrAt('penguin', autoCreate, 'feature', 'black and white');
  xml.updateAttrAt('mammal|rodent|squirrel', autoCreate, 'feature', 'grey, red, or black');
  xml.updateAttrAt('mammal|rodent|rat', autoCreate, 'feature', 'brown, grey, white, or black');

  print(xml.getXml());

  // 	<?xml version="1.0" encoding="utf-8" ?>
  // 	<animals>
  // 	    <penguin feature="black and white" />
  // 	    <mammal>
  // 	        <rodent>
  // 	            <squirrel feature="grey, red, or black" />
  // 	            <rat feature="brown, grey, white, or black" />
  // 	        </rodent>
  // 	    </mammal>
  // 	</animals>
  // 
}