/// <summary>
/// Evaluate the XPath expression, returning the result as an <c>XdmItem</c> (that is,
/// a single node or atomic value).
/// </summary>
/// <returns>
/// An <c>XdmItem</c> representing the result of the expression, or null if the expression
/// returns an empty sequence. If the expression returns a sequence of more than one item,
/// any items after the first are ignored.
/// </returns>
public XdmItem EvaluateSingle()
{
net.sf.saxon.om.Item i = exp.evaluateSingle(dynamicContext);
if (i == null)
{
return(null);
}
return((XdmItem)XdmValue.Wrap(i));
}
/// <summary>
/// Evaluate the XPath expression, returning the result as an <c>XdmItem</c> (that is,
/// a single node or atomic value).
/// </summary>
/// <returns>
/// An <c>XdmItem</c> representing the result of the expression, or null if the expression
/// returns an empty sequence. If the expression returns a sequence of more than one item,
/// any items after the first are ignored.
/// </returns>
/// <exception cref="DynamicError">
/// Throws <c>Saxon.Api.DynamicError</c> if the evaluation of the XPath expression fails
/// with a dynamic error.
/// </exception>
public XdmItem EvaluateSingle()
{
try
{
net.sf.saxon.om.Item i = exp.evaluateSingle(dynamicContext);
if (i == null)
{
return(null);
}
return((XdmItem)XdmValue.Wrap(i));
} catch (net.sf.saxon.trans.XPathException err) {
throw new DynamicError(err);
}
}