B4X

Xml TagPath Property Explained

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Demonstrates and explains the TagPath property. B4X

Dim success As Boolean = False

Dim xml As ChilkatXml
xml.Initialize

'  Load some XML:
success = xml.LoadXml("<a><bbb><ccc><ddd>1</ddd><ddd><z>zzz</z></ddd><ddd>3</ddd></ccc></bbb></a>")

Log(xml.GetXml)

'  This is what we have:

'  <?xml version="1.0" encoding="utf-8"?>
'  <a>
'      <bbb>
'          <ccc>
'              <ddd>1</ddd>
'              <ddd>
'                  <z>zzz</z>
'              </ddd>
'              <ddd>3</ddd>
'          </ccc>
'      </bbb>
'  </a>

'  The TagPath property is read-only property that returns the unique path to the
'  node from the document root.

'  For example:
Dim found As Boolean = xml.SearchForTag2(xml, "z")
If found = True Then
    '  We found a node having the tag "z".
    '  The TagPath property tells us the location in the document.
    Dim tagPath As String = xml.TagPath
    Log(tagPath)

    '  The tagPath is bbb|ccc|ddd[1]|z

    '  If we to back to the document root, we can get to the given node via the tagPath.
    xml.GetRoot2
    Log(xml.Tag)
    '  The root tag is "a".

    '  Follow the tagPath to the "z" node:
    found = xml.FindChild2(tagPath)
    Log("found = " & found & ", tag = " & xml.Tag)
    '  We are now at "z".

End If