(Xojo Plugin) Insert XML into existing XML by calling InsertChildTreeAfter

Demonstrates how to insert an XML tree or subtree into another XML document using the InsertChildTreeAfter method.

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// Build the 1st XML document:
// <x1>
//     <a1>1</a1>
//     <a2>2</a2>
//     <a3>3</a3>
// </x1>

Dim xml As New Chilkat.Xml
xml.Tag = "x1"
xml.UpdateChildContent "a1","1"
xml.UpdateChildContent "a2","2"
xml.UpdateChildContent "a3","3"

// Build a 2nd XML document:

// <x2>
//   <b1>11</b1>
//   <b2>22</b2>
//   <b3>33</b3>
// </x2>

Dim xml2 As New Chilkat.Xml
xml2.Tag = "x2"
xml2.UpdateChildContent "b1","11"
xml2.UpdateChildContent "b2","22"
xml2.UpdateChildContent "b3","33"

// We want to insert xml2 into xml to get this:

// <x1>
//     <a1>1</a1>
//     <x2>
//         <b1>11</b1>
//         <b2>22</b2>
//         <b3>33</b3>
//     </x2>
//     <a2>2</a2>
//     <a3>3</a3>
// </x1>

// Insert xml2 after "a1"

Dim index As Int32
index = xml.TagIndex("a1")
If (index < 0) Then
    System.DebugLog("a1 not found.")
    Return
End If

xml.InsertChildTreeAfter index,xml2

System.DebugLog(xml.GetXml())

// The result is:

// <x1>
//     <a1>1</a1>
//     <x2>
//         <b1>11</b1>
//         <b2>22</b2>
//         <b3>33</b3>
//     </x2>
//     <a2>2</a2>
//     <a3>3</a3>
// </x1>

// Note: xml2 now points to the subtree within xml.
// For example, update "b3" and then see how it's updated within the merged document:
xml2.UpdateChildContent "b3","33333333"

System.DebugLog(xml.GetXml())

// The result:

// <x1>
//     <a1>1</a1>
//     <x2>
//         <b1>11</b1>
//         <b2>22</b2>
//         <b3>33333333</b3>
//     </x2>
//     <a2>2</a2>
//     <a3>3</a3>
// </x1>