private async void addMechanicButton_Click(object sender, RoutedEventArgs e)
        {
            if (mechanicNameInput.Text == "")
            {
                MessageBox.Show("Du måste fylla i alla värden!");
            }
            else
            {
                try
                {
                    ManageMechanics.SetQualifications(brakesCheckBox.IsChecked.Value, engineCheckBox.IsChecked.Value, carrieageBodyCheckBox.IsChecked.Value, tireCheckBox.IsChecked.Value, windShieldCheckBox.IsChecked.Value);
                    if (untilFuther)
                    {
                        await ManageMechanics.AddMechanic(Mechanics, mechanicNameInput.Text, birthDayPicker.SelectedDate.Value, dateOfEmployPicker.SelectedDate.Value);
                    }
                    else
                    {
                        await ManageMechanics.AddMechanic(Mechanics, mechanicNameInput.Text, birthDayPicker.SelectedDate.Value, dateOfEmployPicker.SelectedDate.Value, endOfEmployPicker.SelectedDate.Value);
                    }

                    ManageMechanicsPage manageMechanicsPage = new ManageMechanicsPage();

                    this.NavigationService.Navigate(manageMechanicsPage);
                }
                catch (DateOutOfReachException)
                {
                    MessageBox.Show("Någon av datumen är över eller under vad som är tillåtet");
                }
            }
        }
        private async void changeButton_Click(object sender, RoutedEventArgs e)
        {
            List <Component> qualifications = new List <Component>();

            if (this.brakesCheckBox.IsChecked == true)
            {
                qualifications.Add(Component.Bromsar);
            }

            if (this.engineCheckBox.IsChecked == true)
            {
                qualifications.Add(Component.Motor);
            }

            if (this.carrieageBodyCheckBox.IsChecked == true)
            {
                qualifications.Add(Component.Kaross);
            }

            if (this.tiresCheckBox.IsChecked == true)
            {
                qualifications.Add(Component.Däck);
            }

            if (this.windShieldCheckBox.IsChecked == true)
            {
                qualifications.Add(Component.Vindrutor);
            }

            ManageMechanics manageMechanics = new ManageMechanics();

            await manageMechanics.ChangeMechanic(Mechanic.IdNumber.ToString(), qualifications, Mechanics);

            ManageMechanicsPage manageMechanicsPage = new ManageMechanicsPage();

            this.NavigationService.Navigate(manageMechanicsPage);
        }