/// <summary>
/// Populates this health problem instance from the data in the XML.
/// </summary>
///
/// <param name="typeSpecificXml">
/// The XML to get the health problem data from.
/// </param>
///
/// <exception cref="InvalidOperationException">
/// The first node in <paramref name="typeSpecificXml"/> is not
/// a health problem node.
/// </exception>
///
protected override void ParseXml(IXPathNavigable typeSpecificXml)
{
XPathNavigator itemNav =
typeSpecificXml.CreateNavigator().SelectSingleNode("problem");
Validator.ThrowInvalidIfNull(itemNav, "ProblemUnexpectedNode");
_when = new HealthServiceDateTime();
_when.ParseXml(itemNav.SelectSingleNode("when"));
// <diagnosis>
XPathNodeIterator diagnosisIterator =
itemNav.Select("diagnosis");
_diagnosis.Clear();
foreach (XPathNavigator diagnosisNav in diagnosisIterator)
{
CodableValue value = new CodableValue();
value.ParseXml(diagnosisNav);
_diagnosis.Add(value);
}
// <duration>
XPathNodeIterator durationIterator =
itemNav.Select("duration");
_duration.Clear();
foreach (XPathNavigator durationNav in durationIterator)
{
DurationValue value = new DurationValue();
value.ParseXml(durationNav);
_duration.Add(value);
}
// <importance>
_importance =
XPathHelper.GetOptNavValueAsInt(
itemNav,
"importance");
}