private void ClearAddEmployee(object sender, DialogClosingEventArgs eventArgs)
 {
     EmployeeNameTextBox.Clear();
     EmployeeAddressTextBox.Clear();
     EmployeeBirthDatePicker.SelectedDate = DateTime.Today;
     EmployeeSalaryTextBox.Clear();
     EmployeeDepartmentComboBox.SelectedItem = null;
     EmpoloyeeRoleComboBox.SelectedItem      = null;
     validation.Text = "";
 }
 public void addEmployee(object sender, RoutedEventArgs e)
 {
     if (ViewModel.ValidateName())
     {
         ViewModel.addEmployee();
         EmployeeNameTextBox.Clear();
         EmployeeAddressTextBox.Clear();
         EmployeeBirthDatePicker.SelectedDate = DateTime.Today;
         EmployeeSalaryTextBox.Clear();
         EmployeeDepartmentComboBox.SelectedItem = null;
         EmpoloyeeRoleComboBox.SelectedItem      = null;
         Home.ViewModel.CloseRootDialog();
     }
 }