private void Division(object sender, RoutedEventArgs e)
 {
     CurrentCalculate = Type_Calculate.Division;
     Calculate();
     Current_Status = Type_Status.Calculating;
 }
 private void Multiplication(object sender, RoutedEventArgs e)
 {
     CurrentCalculate = Type_Calculate.Multiplication;
     Calculate();
     Current_Status = Type_Status.Calculating;
 }