public static DataTable ListContractor(string userRole, string userLogin)
 {
     IPersonData contractordata = new PersonData();
     DataTable tb = contractordata.ListPerson(userRole, "Contractor", userLogin);
     return tb;
 }
 public static DataTable ListClient(string userRole, string userLogin)
 {
     IPersonData clientdata = new PersonData();
     DataTable tb = clientdata.ListPerson(userRole, "Client", userLogin);
     return tb;
 }