Runtime error with tinyXML element access

Question

yester day was my first attempt. I am trying to catch the variable "time" in the following "new.xml" file

<?xml version="1.0" standalone=no>
<main>
 <ToDo time="1">
  <Item priority="1"> Go to the <bold>Toy store!</bold></Item>
  <Item priority="2"> Do bills</Item>
 </ToDo>
 <ToDo time="2">
  <Item priority="1"> Go to the Second<bold>Toy store!</bold></Item>
 </ToDo>
</main>

Here is my code

TiXmlDocument doc("new.xml");
TiXmlNode * element=doc.FirstChild("main");
element=element->FirstChild("ToDo");
string temp=static_cast<TiXmlElement *>(element)->Attribute("time");

But I am getting run time errors from the third and fourth lines. Can anybody shed a light on this isssue?

Answer 1

It seems to me that you forgot to load the file. Normally I do something along these lines:

TiXmlDocument doc("document.xml");
bool loadOkay = doc.LoadFile(); // Error checking in case file is missing
if(loadOkay)
{
    TiXmlElement *pRoot = doc.RootElement();
    TiXmlElement *element = pRoot->FirstChildElement();
    while(element)
    {
        string value = firstChild->Value(); // In your example xml file this gives you ToDo
        string attribute = firstChild->Attribute("time"); //Gets you the time variable
        element = element->NextSiblingElement();
    }
}
else
{
    //Error conditions
} 

Hope this helps