How to check whether an element is present in the expected range at xpath in XML file?

public bool Element_Present_In_Range(string element_range_value, string user_defined_xml_file, string user_defined_xpath_value)
{
            bool result = false;           
            XmlDocument user_defined_xml_document = new XmlDocument();
            user_defined_xml_document.Load(user_defined_xml_file);
            XmlNodeList myNodeList = user_defined_xml_document.SelectNodes(user_defined_xpath_value);
            foreach (XmlNode myNode in myNodeList)
            {
                string[] words = element_range_value.Split(',');
                foreach (string word in words)
                {
                    if (myNode.InnerText.Equals(word))
                    {
                        result = true;                       
                        return result;
                    }
                    else
                    {
                        result = false;
                         
                    }
                }
            }
            
            return result;
}