Visual FoxPro

XML Sort by Content

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Demonstrates the SortByContent method.

The input XML, available at http://www.chilkatsoft.com/data/fruitSort2.xml, is this:

<root>
    <fruits>
        <apples>
            <apple>fuji</apple>
            <apple>gala</apple>
            <apple>granny smith</apple>
            <apple>honeycrisp</apple>
            <apple>mcintosh</apple>
        </apples>
        <fruit>banana</fruit>
        <fruit>blackberry</fruit>
        <fruit>blueberry</fruit>
        <fruit>orange</fruit>
        <fruit>pear</fruit>
    </fruits>
</root>

Visual FoxPro

LOCAL lnSuccess
LOCAL loXml
LOCAL loXSortRoot
LOCAL lnBAscending

lnSuccess = 0

loXml = CreateObject('Chilkat.Xml')

* The sample input XML is available at http://www.chilkatsoft.com/data/fruitSort2.xml
lnSuccess = loXml.LoadXmlFile("fruitSort2.xml")
IF (lnSuccess <> 1) THEN
    ? loXml.LastErrorText
    RELEASE loXml
    CANCEL
ENDIF

* Sort the direct children under the "fruits" node by tag:
loXSortRoot = loXml.FindChild("fruits")

* Sort in ascending order.
lnBAscending = 1
loXSortRoot.SortByContent(lnBAscending)

* Show the result:
? loXml.GetXml()

* Note:  The "apples" node contains child nodes, but its 
* text content is 0-length (empty).  Therefore, when sorting in
* ascending order, it will be positioned before the direct
* children containing non-empty content.

* <root>
*     <fruits>
*         <apples>
*             <apple>granny smith</apple>
*             <apple>gala</apple>
*             <apple>fuji</apple>
*             <apple>mcintosh</apple>
*             <apple>honeycrisp</apple>
*         </apples>
*         <fruit>banana</fruit>
*         <fruit>blackberry</fruit>
*         <fruit>blueberry</fruit>
*         <fruit>orange</fruit>
*         <fruit>pear</fruit>
*     </fruits>
* </root>

* Sort the direct children under the "apples" node:
lnSuccess = loXSortRoot.FindChild2("apples")

loXSortRoot.SortByContent(lnBAscending)
? loXml.GetXml()

* <root>
*     <fruits>
*         <apples>
*             <apple>fuji</apple>
*             <apple>gala</apple>
*             <apple>granny smith</apple>
*             <apple>honeycrisp</apple>
*             <apple>mcintosh</apple>
*         </apples>
*         <fruit>banana</fruit>
*         <fruit>blackberry</fruit>
*         <fruit>blueberry</fruit>
*         <fruit>orange</fruit>
*         <fruit>pear</fruit>
*     </fruits>
* </root>

RELEASE loXSortRoot

RELEASE loXml