xmldocument的使用

TXMLDocument domvendor = ADOM XML v4

var
  root: IXMLnode;
  lei: IXMLNode;
  info: IXMLNode;
  i: integer;
  strxml:string;
  xmldoc:TXMLDocument;
begin
  cbbCountry.Items.Clear;
  try
    strxml := ‘<?xml version="1.0" encoding="GB2312"?>‘;
    strxml := strxml + (httprio1 as DataCenterServicesSoap).GetCZD(xz);
    xmldoc :=  TXMLDocument.create(nil);
    xmldoc.LoadFromXML(strxml);
    root := xmldoc.DocumentElement;
    lei := root.ChildNodes.First;
    while lei <> nil do
    begin
      if lei.NodeName = ‘Item‘ then
      begin
        info := lei.ChildNodes.First;
        clientdatasetcountry.append;
        while info <> nil do
        begin
          if info.NodeName = ‘unitId‘ then
          begin
            clientdatasetcountry.fieldbyname(‘unitId‘).value := info.text;
          end
          else if info.NodeName = ‘name‘ then
          begin
            clientdatasetcountry.fieldbyname(‘name‘).value := info.text;
          end;
          info := info.NextSibling;
        end;
      end;
      clientdatasetcountry.post;
      lei := lei.NextSibling;
    end;
 finally
   xmldoc.free;
 end;
  cbbcountry.items.Clear;
  clientdatasetcountry.first;
  while not clientdatasetcountry.eof do
  begin
    if  trim(clientdatasetcountry.FieldByName(‘name‘).asstring) <> ‘‘ then
      cbbcountry.items.add( clientdatasetcountry.FieldByName(‘name‘).asstring);
    clientdatasetcountry.next;
  end;