TiXmlHandle in a loop

[Phil]

hi,

sorry for my many questions, i dont know how to solve my next problem. i have an easy xml file like:

<?xml version="1.0" encoding="UTF-8"?>
<product>
<a001>A30</a001>
<productidentifier><b221>01</b221><b244>2000407</b244></productidentifier><productidentifier><b221>02</b221><b244>3406428649</b244></productidentifier><productidentifier><b221>03</b221><b244>9783406428647</b244></productidentifier>
<b246>01</b246>
</product>

Now, i want to read all data in the b244 tags.

this is my way:

bool __fastcall ParseXML()
{
   TiXmlDocument doc("c:\\test.xml");
   doc.LoadFile();
   TiXmlHandle handle(&doc);
   TiXmlText *result;

   for (int i = 0; ; i++)
   {
      result = handle.ChildElement("product", 0).ChildElement("productidentifier", i).ChildElement("b244", 0).FirstChild().Text();
      if (result)
         ShowMessage(result->Value());
      else
         break;
   }

   return true;
}

this do not work. i get no data. my first test example with a loop works fine, there was no third childelement after my dynamic second childelement.

could anybody tel me why this example would not work?

Phil

[Ellers]

Well, this for loop is not helping you:

for (int i = 0; ; i++)

See anything missing here!? 8)

Ellers

[Phil]

Hi ellers,

this loop works fine, here another example:

for (int i = 0; ; i++)
{
   ShowMessage(i);

   if (i > 5)
      break;
}

I need an endless loop with counter, this does my for loop. so, this cant be the error :)

phil

[Ellers]

Ah, fair enough, my bad.

Well, I used your exact xml, made a new console exe and modified your code only slightly to be this:

void test3()
{
    TiXmlDocument doc( "demo_20050802.xml" );

    doc.LoadFile();
    TiXmlHandle handle(&doc);
    TiXmlText *result;

    for (int i = 0; /* NONE */ ; i++)
    {
        result = handle.ChildElement("product", 0).ChildElement("productidentifier", i).ChildElement("b244", 0).FirstChild().Text();
        if (result)
        {
            printf( "Value for i=%d: [%s]\n", i, result->Value());
        }
        else
        {
            // finish the loop
            break;
        }
    }
    printf( "Finished\n" );
}

and got these results, which look correct from your data:

Value for i=0: [2000407]
Value for i=1: [3406428649]
Value for i=2: [9783406428647]
Finished

Perhaps your ShowMessage() is not working? Have you tried stepping through in a debugger?

Ellers

[Phil]

hi,

now the same code works fine as well in my application. i think i should not always working until 4 o'clock in the morning :)

philipp