How to check whether attribute is present or not in XPath in xml file.

Description -
Create a class library which will check whether the attribute is present in XPath in xml file. For e.g There is one xml file say test.xml in which xpath will be //studentsList/student then suppose user needs to find "firstname" as an attribute which is present in //studentsList/student of test.xml then
user has to give parameters such as firstname i.e. name of the parameter , test.xml i.e. xml file name , //studentsList/student i.e. xpath in xml
Use following code for the same -

  public bool Attribute_Present_Or_not(string user_defined_attribute, string user_defined_xml_file, string user_defined_xpath)
        {
            bool chk_result = false;          
          
            try
            {
                XmlDocument user_xml_document = new XmlDocument();
                user_xml_document.Load(user_defined_xml_file);

                XmlNodeList user_nodeList = user_xml_document.SelectNodes(user_defined_xpath);                         
                XmlElement root = user_xml_document.DocumentElement;  
            
                foreach (XmlNode user_node in user_nodeList)
                {
                    try{
                      if (user_node.Attributes.GetNamedItem(user_defined_attribute)!=null)                       
                    
                       {
                            chk_result = true;    

                            return chk_result;
                        }
                }
            catch (Exception )
            {
                            chk_result = false;                         
                           
                            return chk_result;
                         
             }

                }

            }
            catch (NullReferenceException)
            {
                chk_result = false;
               
                return chk_result;
            }
            catch (XPathException)
            {
                chk_result = false;
               
                return chk_result;
            }
          
           return chk_result;
        }