Empty TAG in response.

[Cleverton Hentz]

Hi,
I'm using Dxmlrpc in a new project.
When I receive response for XML-RPC call some params be empty. When this occur the struct in IRpcResult It do not contain a null parameter.

I'm show a exemple of this:
...
<member>
  <name>CONTA_AGENTE</name>
  <value><string/></value>
</member>
...

if i try access like this exemple, "Obj.KeyExists('CONTA_AGENTE')", return false.

Any help will be welcome.
Cleverton Hentz

[Marand]

Similar problem here. Having a struct member in a result can cause its name to be mistakenly returned as the name of one of its items. Actual example:
<?xml version="1.0" encoding="iso-8859-1"?>
  <methodResponse>
    <params>
      <param>
        <value>
          <struct>
            <member><name>feedid</name><value><string>34092</string></value></member>
            <member><name>sitename</name><value><string>Riff news</string></value></member>
            <member><name>PollStatus</name>
              <value>
                <array>
                  <data>
                    <value>
                      <struct>
                        <member><name>date_polled</name><value><string>2004-09-03 11:07:35</string></value></member>
                        <member><name>status</name><value><string>Ok</string></value></member>
                        <member><name>parse_error</name><value><string></string></value></member>
                        <member><name>parse_line</name><value><string></string></value></member>
                        <member><name>fetch_error</name><value><string></string></value></member>
                        <member><name>response_time</name><value><string>0.918263</string></value></member>
                        <member><name>redirection</name><value><string></string></value></member>
                        <member><name>http_response</name><value><string>200</string></value></member>
                        <member><name>encoding</name><value><string>iso-8859-1</string></value></member>
                        </struct>
                      </value>
                    <value>
[...]
res.KeyList [0] = 'feedid
res.KeyList [1] = 'sitename'
... this is correct, but:
res.KeyList [2] = 'redirection'
... this is NOT correct, AIUI XML-RPC.

[Marand]

In version 2.0, a fix exists, but is not activated by default. Just use:

var cal    : TRpcCaller ;

cal := TRpcCaller.Create ;
cal.FixEmptyStrings := True ;

FixEmptyStrings defaults to False:
XmlRpcClient / TRpcCaller.Create:
inherited Create ; --> TRpcClientParser.Create
additional code doesn't change this field

TRpcClientParser.Create:
  inherited Create; --> TObject.Create
and strictly nothing more

So the property defaults to the TObject default: 0 value, meaning False by default.

[Cleverton Hentz]

For your case yes, but for my no.
In my case tag is empty, i.e. <String/> .I'm implemente one new case in function FixEmptyString() for situation with emtpy tags. This code was add to end of function.

//By Hentz- 26/08/2004 - Exclude TAG from struct when XML TAG "<string/>" appears.
  Result := StringReplace(Result,'<string/>',
      '<string>[NULL]</string>', [rfReplaceAll, rfIgnoreCase]);

[mahadewi]

how i can send many parameters as record data type ?