//When the program start ther will be not xml file existen therefore we create one with a default administrator
 public void WriteAssignments(AssignmentSet newAssgnment)
 {
     if (File.Exists(_fileName) == true)
     {
         if (fileIsOpen = OpenFile(_fileName))
         {
             //make sure that count should be zero
             //as the first time we create a program we make a admin a default user
             var newAssignmentNode = new XElement("Assignment",
                                                  new XElement("AssignmentName", newAssgnment.AssignmentName),
                                                  //new XElement("JungleName", ""),
                                                  new XElement("BottomRange", newAssgnment.BottomRange),
                                                  new XElement("TopRange", newAssgnment.TopRange),
                                                  new XElement("Problems", newAssgnment.NumberofProblems),
                                                  new XElement("Goal", newAssgnment.Goal),
                                                  new XElement("Attempts", newAssgnment.Attempts)
                                                  );
             xmlDocument.Element("Assignments").Add(newAssignmentNode);
             xmlDocument.Save(_fileName);
             RepNumber++;
         }
     }
     else
     {
         CreateNewAssg();
     }
 }
 //When the program start ther will be not xml file existen therefore we create one with a default administrator
 public void WriteAssignments(AssignmentSet newAssgnment)
 {
     if (File.Exists(_fileName) == true)
     {
         if (fileIsOpen = OpenFile(_fileName))
         {
             //make sure that count should be zero        
             //as the first time we create a program we make a admin a default user
             var newAssignmentNode = new XElement("Assignment",
                            new XElement("AssignmentName", newAssgnment.AssignmentName),
                 //new XElement("JungleName", ""),
                            new XElement("BottomRange", newAssgnment.BottomRange),
                            new XElement("TopRange", newAssgnment.TopRange),
                            new XElement("Problems", newAssgnment.NumberofProblems),
                            new XElement("Goal", newAssgnment.Goal),
                            new XElement("Attempts", newAssgnment.Attempts)
                            );
             xmlDocument.Element("Assignments").Add(newAssignmentNode);
             xmlDocument.Save(_fileName);
             RepNumber++;
         }
     }
     else
     {
         CreateNewAssg();
     }
 }