B4X

Demonstrate the XML FindNextRecord Method

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Imagine we have an XML file as follows:

<CompleteMultipartUpload>
  <Part>
    <PartNumber>1</PartNumber>
    <ETag>abc</ETag>
  </Part>
  <Part>
    <PartNumber>2</PartNumber>
    <ETag>def</ETag>
  </Part>
  <Part>
    <PartNumber>3</PartNumber>
    <ETag>ghi</ETag>
  </Part>
</CompleteMultipartUpload>

We want to find the record where PartNumber = 2. To do so, we simply position ourselves at the first "Part" tag, and then call FindNextRecord. (See below..) B4X

Dim xml As ChilkatXml
xml.Initialize

xml.LoadXmlFile("qa_data/xml/multipartUpload.xml")

'  Position ourselves at the 1st record.
xml.GetChild2(0)

Dim foundRec As ChilkatXml = xml.FindNextRecord("PartNumber", "2")
If xml.LastMethodSuccess = True Then
    Log("Found the record where PartNumber = 2.")
    Log(foundRec.GetXml)

    '  Let's examine the ETag for this record...
    Log("ETag for PartNumber 2 = " & foundRec.GetChildContent("ETag"))

Else
    Log("No record exists where PartNumber = 2.")
End If


'  What if we want to find the record where ETag = "abc"?
foundRec = xml.FindNextRecord("ETag", "abc")
If xml.LastMethodSuccess = True Then
    Log("Found the record where ETag = abc")
    Log(foundRec.GetXml)

    '  Let's examine the PartNumber for this record...
    Log("Part number for Etag(abc) = " & foundRec.GetChildContent("PartNumber"))

Else
    Log("No record exists where ETag = abc.")
End If


'  Go back to the XML root..
xml.GetRoot2