private void continue_Button_Click(object sender, RoutedEventArgs e)
        {
            time_end   = DateTime.Now;
            difference = time_end.Subtract(timer);
            time_stamp = difference.ToString("c");

            //this must be switched to input it into the correct id for the math problem
            Math_Info newMathCalibrate = new Math_Info {
                solution_calibrate = time_stamp
            };

            Math_Info_Items.Add(newMathCalibrate);
            mathDB.Math_Information.InsertOnSubmit(newMathCalibrate);

            this.NavigationService.Navigate(new Uri("/CognitivTest.xaml?mode=calibrate", UriKind.Relative));
        }
        private void submit_Button_Click(object sender, RoutedEventArgs e)
        {
            userSolution = this.Solution.Text;       //fetches the users answer
            time_end     = DateTime.Now;             //gets the time
            difference   = time_end.Subtract(timer); //gets the time difference for comparison
            time_stamp   = difference.ToString("c"); //and formats is

            result = userSolution.Equals(mathSolutions[problemNumber]);

            Math_Info newMathInfo = new Math_Info {
                solution_time = time_stamp
            };                                                                      //puts the users used time into the database

            Math_Info_Items.Add(newMathInfo);
            mathDB.Math_Information.InsertOnSubmit(newMathInfo);

            //remember this must be switch to id and an update query

            this.NavigationService.Navigate(new Uri("/ResultPage.xaml?mode=" + mode + "&result=" + result + "&time=" + time_stamp, UriKind.Relative));
        }
        private void submit_Button_Click(object sender, RoutedEventArgs e)
        {
            userSolution = this.Solution.Text;  //fetches the users answer
            time_end = DateTime.Now;    //gets the time
            difference = time_end.Subtract(timer);  //gets the time difference for comparison
            time_stamp = difference.ToString("c");  //and formats is

            result = userSolution.Equals(mathSolutions[problemNumber]);

            Math_Info newMathInfo = new Math_Info { solution_time = time_stamp };   //puts the users used time into the database
            Math_Info_Items.Add(newMathInfo);
            mathDB.Math_Information.InsertOnSubmit(newMathInfo);

            //remember this must be switch to id and an update query

            this.NavigationService.Navigate(new Uri("/ResultPage.xaml?mode=" + mode + "&result=" + result + "&time=" + time_stamp, UriKind.Relative));
        }
        private void continue_Button_Click(object sender, RoutedEventArgs e)
        {
            time_end = DateTime.Now;
            difference = time_end.Subtract(timer);
            time_stamp = difference.ToString("c");

            //this must be switched to input it into the correct id for the math problem
            Math_Info newMathCalibrate = new Math_Info { solution_calibrate = time_stamp };
            Math_Info_Items.Add(newMathCalibrate);
            mathDB.Math_Information.InsertOnSubmit(newMathCalibrate);

            this.NavigationService.Navigate(new Uri("/CognitivTest.xaml?mode=calibrate", UriKind.Relative));
        }