Objective-C

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.

Objective-C

#import <CkoXml.h>

// Note: This example requires Chilkat v9.5.0.64 or later.
CkoXml *xml = [[CkoXml alloc] init];

xml.Tag = @"animals";

BOOL autoCreate = YES;

// When the autoCreate argument equals YES, the UpdateAttrAt
// method auto-creates the children as needed:
[xml UpdateAttrAt: @"penguin" autoCreate: autoCreate attrName: @"feature" attrValue: @"flightless bird"];
[xml UpdateAttrAt: @"mammal|rodent|squirrel" autoCreate: autoCreate attrName: @"feature" attrValue: @"bushy tail"];
[xml UpdateAttrAt: @"mammal|rodent|rat" autoCreate: autoCreate attrName: @"feature" attrValue: @"long hairless tail"];

// Show the XML
NSLog(@"%@",[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: autoCreate attrName: @"feature" attrValue: @"black and white"];
[xml UpdateAttrAt: @"mammal|rodent|squirrel" autoCreate: autoCreate attrName: @"feature" attrValue: @"grey, red, or black"];
[xml UpdateAttrAt: @"mammal|rodent|rat" autoCreate: autoCreate attrName: @"feature" attrValue: @"brown, grey, white, or black"];

NSLog(@"%@",[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>
//