Visual FoxPro

Find Direct Child with Specific Tag

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Demonstrates how to find a direct child 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>

Visual FoxPro

LOCAL lnSuccess
LOCAL loXml
LOCAL loChild

lnSuccess = 0

loXml = CreateObject('Chilkat.Xml')

*  The sample input XML is available at http://www.chilkatsoft.com/data/fruit.xml
lnSuccess = loXml.LoadXmlFile("qa_data/xml/fruit.xml")
IF (lnSuccess = 0) THEN
    ? loXml.LastErrorText
    RELEASE loXml
    CANCEL
ENDIF

*  Find the direct child node having the tag "meat", and 
*  return a new instance of the XML object referencing the
*  child node, if found.
loChild = loXml.FindChild("meat")
IF (loXml.LastMethodSuccess = 0) THEN
    ? 'No direct child having the tag "meat" was found.'
ELSE
    ? "Content = " + loChild.Content
    RELEASE loChild
ENDIF

*  The same can be accomplished without creating a new 
*  XML object instance.  Instead, the FindChild2 method updates
*  the caller's internal reference to the found child, if successful.
lnSuccess = loXml.FindChild2("meat")
IF (lnSuccess = 1) THEN
    *  Success!  The xml object now references the found child.
    ? "Content = " + loXml.Content
    *  Restore the reference back to the parent.
    lnSuccess = loXml.GetParent2()
ELSE
    ? 'No direct child having the tag "meat" was found.'
ENDIF

RELEASE loXml