update link field value dynamically in infopath form

Link Field name in Design view

Set value Dynamically in code
XPathNavigator ipFormNav = MainDataSource.CreateNavigator();
           
XPathNavigator assnAttachURL = ipFormNav.SelectSingleNode("/my:myFields/my:URLPath", NamespaceManager);
XPathNavigator assnAttachDisplay = ipFormNav.SelectSingleNode("/my:myFields/my:URLPath/@my:URLDisplay", NamespaceManager);


assnAttachURL.SetValue("http://www.google.com");
assnAttachDisplay.SetValue("google");
Out put screen