System.Xml.Xsl.XsltOld.XsltCompileContext.XsltFunctionImpl.ToString C# (CSharp) Method

            public static string ToString(object argument) {
                XPathNodeIterator it = argument as XPathNodeIterator;
                if(it != null) {
                    return IteratorToString(it);
                } else {
                    return XmlConvert.ToXPathString(argument);
                }
            }