B4X

XML Sort by Content

See more XML Examples

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>

B4X

Dim success As Boolean = False

Dim xml As ChilkatXml
xml.Initialize
Dim xSortRoot As ChilkatXml

'  The sample input XML is available at http://www.chilkatsoft.com/data/fruitSort2.xml
success = xml.LoadXmlFile("fruitSort2.xml")
If success <> True Then
    Log(xml.LastErrorText)
    Return
End If


'  Sort the direct children under the "fruits" node by tag:
xSortRoot = xml.FindChild("fruits")

'  Sort in ascending order.
Dim bAscending As Boolean = True
xSortRoot.SortByContent(bAscending)

'  Show the result:
Log(xml.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:
success = xSortRoot.FindChild2("apples")

xSortRoot.SortByContent(bAscending)
Log(xml.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>