private void sigh_up_btn(object sender, RoutedEventArgs e)
 {
     if (ValidateFields())
     {
         Member NewMember = new Member(txtName.Text, txtEmail.Text, txtPreNumber.Text + txtPhoneNumber.Text, txtPassword.Password, Date.GetCurrentDate(), ImageFile);
         if (DataBaseManager.isMemberExists(NewMember.Name, NewMember.Email, NewMember.PhoneNumber) &&
             DataBaseManager.isEmployeeExists(NewMember.Name, NewMember.Email, NewMember.PhoneNumber))
         {
             PayPanel PayPanelWindow = new PayPanel(20000, NewMember);
             NavigationService.Navigate(PayPanelWindow);
         }
     }
 }
 private void Addbutton_Click(object sender, RoutedEventArgs e)
 {
     if (ValidateFields())
     {
         Employee NewEmployee = new Employee(txtName.Text, txtPreNumber.Text + txtPhoneNumber.Text, txtEmail.Text, txtPassword.Password, int.Parse(txtSalary.Text), ImageFile);
         if (DataBaseManager.isEmployeeExists(NewEmployee.Name, NewEmployee.Email, NewEmployee.PhoneNumber) &&
             DataBaseManager.isMemberExists(NewEmployee.Name, NewEmployee.Email, NewEmployee.PhoneNumber))
         {
             DataBaseManager.AddEmployee(NewEmployee);
             NavigationService.Navigate(new Pages.Universal.employees());
         }
     }
 }