public static IList <XPathNavigator> ToNodeSet(IList <XPathItem> listItems)
{
XsltLibrary.CheckXsltValue(listItems);
if (listItems.Count == 1)
{
return(new XmlQueryNodeSequence(ToNode(listItems[0])));
}
return(XmlILStorageConverter.ItemsToNavigators(listItems));
}
//------------------------------------------------------------------------
// EnsureXXX methods (TreatAs)
//------------------------------------------------------------------------
public static IList <XPathNavigator> EnsureNodeSet(IList <XPathItem> listItems)
{
XsltLibrary.CheckXsltValue(listItems);
if (listItems.Count == 1)
{
XPathItem item = listItems[0];
if (!item.IsNode)
{
throw new XslTransformException(SR.XPath_NodeSetExpected, string.Empty);
}
if (item is RtfNavigator)
{
throw new XslTransformException(SR.XPath_RtfInPathExpr, string.Empty);
}
}
return(XmlILStorageConverter.ItemsToNavigators(listItems));
}
private static IList <XPathNavigator> ToNodeSetOrRtf(IList <XPathItem> val)
{
return(XmlILStorageConverter.ItemsToNavigators(val));
}