System.Xml.XmlValidatingReaderImpl.GetResolver C# (CSharp) Method

        private XmlResolver GetResolver()
        {
            XmlResolver tempResolver = _coreReaderImpl.GetResolver();

            if (tempResolver == null && !_coreReaderImpl.IsResolverSet &&
                !System.Xml.XmlReaderSettings.EnableLegacyXmlSettings())
            {
                // it is safe to return valid resolver as it'll be used in the schema validation 
                if (s_tempResolver == null)
                    s_tempResolver = new XmlUrlResolver();
                return s_tempResolver;
            }

            return tempResolver;
        }