Objective-C

Remove an XML Subtree

See more XML Examples

Demonstrates how to remove an XML subtree from an XML document. Objective-C

#import <CkoXml.h>
#import <NSString.h>

BOOL success = NO;

CkoXml *xml = [[CkoXml alloc] init];

success = [xml LoadXmlFile: @"qa_data/xml/osszes.xml"];

//  The XML file we're loading contains this:

//  <?xml version="1.0" encoding="iso-8859-2" ?>
//  <EXAMPLE>
//      <OSSZES>
//          <ROW TYPE="INS">477953
//              <NUMBER>05107003972</NUMBER>
//          </ROW>
//          <ROW TYPE="INS">477954
//              <NUMBER>05107001342</NUMBER>
//          </ROW>
//          <ROW TYPE="INS">477955
//              <NUMBER>05107001342</NUMBER>
//          </ROW>
//          <ROW TYPE="INS">477956
//              <NUMBER>05107000017</NUMBER>
//          </ROW>**
//          <ROW TYPE="INS">477957
//              <NUMBER>05107002182</NUMBER>
//          </ROW>
//      </OSSZES>
//  </EXAMPLE>
//  

//  We wish to remove this subtree:

//  <ROW TYPE="INS">477956
//      <NUMBER>05107000017</NUMBER>
//  </ROW>

//  Get another reference to the XML document.
CkoXml *xml2 = [xml GetSelf];

//  Navigate to the node that is the root of the subtree to be deleted.
//  In this case, we wish to find the node having tag "ROW" with content "477956"
NSString *notUsed = [xml2 ChilkatPath: @"OSSZES|/C/ROW,*477956*|$"];

//  Examine the xml2, it should be just the subtree.
NSLog(@"%@",[xml2 GetXml]);

//  Now detach xml2 from the it's XML document.
//  xml2 will now be it's own XML document.
[xml2 RemoveFromTree];

//  Examine our original XML document.  The subtree is removed:
NSLog(@"%@",[xml GetXml]);