(VB.NET) Iterate over Direct Children with a Specific Tag

Demonstrates how to iterate over direct children having a specific tag.

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>

Download: Chilkat .NET Assemblies

Dim xml As New Chilkat.Xml()
Dim child As Chilkat.Xml
Dim numWithTag As Long
Dim i As Long

Dim success As Boolean
'  The sample input XML is available at http://www.chilkatsoft.com/data/fruit.xml
success = xml.LoadXmlFile("fruit.xml")
If (success <> true) Then
    TextBox1.Text = TextBox1.Text & xml.LastErrorText & vbCrLf
    Exit Sub
End If


'   Get the number of direct children having the tag "fruit"
numWithTag = xml.NumChildrenHavingTag("fruit")

If (numWithTag > 0) Then

    For i = 0 To numWithTag - 1
        child = xml.GetNthChildWithTag("fruit",i)
        TextBox1.Text = TextBox1.Text & i & ": " _
             & child.Tag & " : " & child.Content & vbCrLf

    Next
    TextBox1.Text = TextBox1.Text & "-----" & vbCrLf

    '  Do the same as the above loop, but instead of creating
    '  a new object instance for each child, call GetNthChildWithTag2 to
    '  update the object's reference instead.
    For i = 0 To numWithTag - 1
        '  Navigate to the Nth child.
        xml.GetNthChildWithTag2("fruit",i)
        TextBox1.Text = TextBox1.Text & i & ": " _
             & xml.Tag & " : " & xml.Content & vbCrLf
        '  Navigate back up to the parent:
        xml.GetParent2()
    Next
    TextBox1.Text = TextBox1.Text & "-----" & vbCrLf

End If