(Delphi DLL) XML Sort by Tag

Demonstrates the SortByTag method.

The input XML, available at http://www.chilkatsoft.com/data/fruitSort1.xml, is this:

<root>
    <fruits>
        <apple>
            <fuji>blah</fuji>
            <gala>blah</gala>
            <grannySmith>blah</grannySmith>
            <honeycrisp>blah</honeycrisp>
            <mcIntosh>blah</mcIntosh>
        </apple>
        <banana>blah</banana>
        <blackberry>blah</blackberry>
        <blueberry>blah</blueberry>
        <orange>blah</orange>
        <pear>blah</pear>
    </fruits>
</root>

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
xml: HCkXml;
xSortRoot: HCkXml;
success: Boolean;
bAscending: Boolean;

begin
xml := CkXml_Create();

// The sample input XML is available at http://www.chilkatsoft.com/data/fruitSort1.xml
success := CkXml_LoadXmlFile(xml,'fruitSort1.xml');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkXml__lastErrorText(xml));
    Exit;
  end;

// Sort the direct children under the "fruits" node by tag:
xSortRoot := CkXml_FindChild(xml,'fruits');

// Sort in ascending order.
bAscending := True;
CkXml_SortByTag(xSortRoot,bAscending);

// Show the result:
Memo1.Lines.Add(CkXml__getXml(xml));

// <root>
//     <fruits>
//         <apple>
//             <grannySmith>blah</grannySmith>
//             <gala>blah</gala>
//             <fuji>blah</fuji>
//             <mcIntosh>blah</mcIntosh>
//             <honeycrisp>blah</honeycrisp>
//         </apple>
//         <banana>blah</banana>
//         <blackberry>blah</blackberry>
//         <blueberry>blah</blueberry>
//         <orange>blah</orange>
//         <pear>blah</pear>
//     </fruits>
// </root>

// Sort the direct children under the "apple" node:
success := CkXml_FindChild2(xSortRoot,'apple');

CkXml_SortByTag(xSortRoot,bAscending);
Memo1.Lines.Add(CkXml__getXml(xml));

// <root>
//     <fruits>
//         <apple>
//             <fuji>blah</fuji>
//             <gala>blah</gala>
//             <grannySmith>blah</grannySmith>
//             <honeycrisp>blah</honeycrisp>
//             <mcIntosh>blah</mcIntosh>
//         </apple>
//         <banana>blah</banana>
//         <blackberry>blah</blackberry>
//         <blueberry>blah</blueberry>
//         <orange>blah</orange>
//         <pear>blah</pear>
//     </fruits>
// </root>

CkXml_Dispose(xSortRoot);

CkXml_Dispose(xml);

end;