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(VBScript) Removing / Deleting Child Nodes from XMLDemonstrates various methods for removing child nodes from an XML document. The input XML, available at http://www.chilkatsoft.com/data/fruit.xml, is this: <root> <fruit color="red">apple</fruit> <fruit color="green">pear</fruit> <veg color="orange">carrot</veg> <meat animal="cow">beef</meat> <xyz> <fruit color="blue">blueberry</fruit> <veg color="green">broccoli</veg> </xyz> <fruit color="purple">grape</fruit> <cheese color="yellow">cheddar</cheese> </root>
Dim fso, outFile Set fso = CreateObject("Scripting.FileSystemObject") 'Create a Unicode (utf-16) output text file. Set outFile = fso.CreateTextFile("output.txt", True, True) ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Xml") set xml = CreateObject("Chilkat.Xml") ' The sample input XML is available at http://www.chilkatsoft.com/data/fruit.xml success = xml.LoadXmlFile("fruit.xml") If (success <> 1) Then outFile.WriteLine(xml.LastErrorText) WScript.Quit End If ' The RemoveChild method removes (discards) all direct ' children having the specified tag: xml.RemoveChild "fruit" ' Show the resulting XML: outFile.WriteLine("Result with all direct children having a tag equal to ""fruit"" removed:") outFile.WriteLine(xml.GetXml()) ' The XML with the "fruit" direct children removed is shown below: ' Notice that the "fruit" node beneath "xyz" was not removed. ' This correct because it was not a direct child of the calling node. ' <root> ' <veg color="orange">carrot</veg> ' <meat animal="cow">beef</meat> ' <xyz> ' <fruit color="blue">blueberry</fruit> ' <veg color="green">broccoli</veg> ' </xyz> ' <cheese color="yellow">cheddar</cheese> ' </root> ' -------------------------------------------------------------------------- ' Restore the original XML: success = xml.LoadXmlFile("fruit.xml") ' The RemoveChildWithContent method removes the child ' having the exact content specified, regardless of the tag. ' For example: xml.RemoveChildWithContent "pear" ' Show the resulting XML: outFile.WriteLine("Result with the node containing ""pear"" removed:") outFile.WriteLine(xml.GetXml()) ' -------------------------------------------------------------------------- ' Restore the original XML: success = xml.LoadXmlFile("fruit.xml") ' The RemoveChildByIndex method removes the Nth direct ' child. Indexing begins at 0. The "xyz" child is at index 4: xml.RemoveChildByIndex 4 ' Show the resulting XML: ' Notice that the entire "xyz" subtree is removed. outFile.WriteLine("Result with the node at index 4 removed:") outFile.WriteLine(xml.GetXml()) ' -------------------------------------------------------------------------- ' Restore the original XML: success = xml.LoadXmlFile("fruit.xml") ' Navigate to the node with tag "xyz" ' xyz is a Chilkat.Xml Set xyz = xml.FindChild("xyz") ' Remove the "xyz" subtree making it it's own XML document ' with the "xyz" node at the root: xyz.RemoveFromTree ' Show both XML documents: outFile.WriteLine(xyz.GetXml()) outFile.WriteLine(xml.GetXml()) ' Also, the TreeId property is an integer value assigned ' to nodes in an XML document. All nodes belonging to ' the same XML document will have the same TreeId. ' Notice that the "xyz" node now has a different TreeId: outFile.WriteLine("xyz TreeId = " & xyz.TreeId) outFile.WriteLine("xml TreeId = " & xml.TreeId) outFile.Close |
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