messageBox if语句

有人可以看到为什么这段代码不起作用吗?我知道它与if语句有关，但是我不确定它对我来说看起来还可以！

Hi, can someone see why this piece of code doesnt work? I know its something todo with the if statement but I am not sure what it looks ok to me!

private void button1_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Board visit submitted. Would you like to enter another Visit?","Board Visit",MessageBoxButton.YesNo,MessageBoxImage.Question,MessageBoxResult.No);
            if (MessageBoxResult.No.Equals(true))
            {
                Visit_Class visit = new Visit_Class(file,date);
                visit.connectionOpen();
                visit.setEnvVisit(Convert.ToString(envDate.Text),Convert.ToString(envBoard.Text),Convert.ToString(envDesc.Text),Convert.ToInt16(envScore.Value));
                visit.setHSVisit(Convert.ToString(hsDate.Text), Convert.ToString(hsBoard.Text), Convert.ToString(hsDesc.Text), Convert.ToInt16(hsScore.Value));
                visit.connectionClose();
                MessageBox.Show("Your Triangle is Complete!","Triangle Complete!",MessageBoxButton.OK);
                this.Close();
            }
            else if (MessageBoxResult.No.Equals(false))
            {
                Visit_Class visit = new Visit_Class(file, date);
                visit.connectionOpen();
                visit.setEnvVisit(Convert.ToString(envDate.Text), Convert.ToString(envBoard.Text), Convert.ToString(envDesc.Text), Convert.ToInt16(envScore.Value));
                visit.setHSVisit(Convert.ToString(hsDate.Text), Convert.ToString(hsBoard.Text), Convert.ToString(hsDesc.Text), Convert.ToInt16(hsScore.Value));
                visit.connectionClose();
            }
        }

在此先感谢

Dan

Thanks in advance

Dan