public QilNode InvokeMsStringCompare(QilNode x, QilNode y, QilNode lang, QilNode options) { CheckString(x ); CheckString(y ); CheckString(lang ); CheckString(options); return XsltInvokeEarlyBound(QName("ms:string-compare"), XsltMethods.MSStringCompare, T.DoubleX, new QilNode[] { x, y, lang, options } ); }