c# - C# WinForm 中 MessageBox 的连续弹出

Question

这是我的代码:

private void btnReminder_Click(object sender, EventArgs e)
{
    timer2.Start();
}

private void timer2_Tick(object sender, EventArgs e)
{
    DateTime Date = DateTimePickerReminderDate.Value;
    DateTime Time = DateTimePickerReminderTime.Value;
    if (DateTime.Now.CompareTo(Date) > 0 && DateTime.Now.CompareTo(Time) > 0) 
    {
        Date = DateTime.MaxValue;
        Time = DateTime.MaxValue; 
        MessageBox.Show("Your Reminder");

        timer2.Stop();     
    }
}   

当我设置提醒时它按预期工作并在正确的时间显示消息。但问题是，它不断弹出消息框我试图清除这个错误但我没有成功。所以现在我需要专家的建议，所以请帮我清除这个错误。

Answer 1

MessageBox 将在显示时阻塞您的 UI 线程，并且您在单击对话框之前不会到达 timer.Stop()。尝试在显示 MessageBox 之前停止计时器:

private void timer2_Tick(object sender, EventArgs e)
{
    DateTime Date = DateTimePickerReminderDate.Value;
    DateTime Time = DateTimePickerReminderTime.Value;
    if (DateTime.Now.CompareTo(Date) > 0 && DateTime.Now.CompareTo(Time) > 0) 
    {
        timer2.Stop();     

        Date = DateTime.MaxValue;
        Time = DateTime.MaxValue; 
        MessageBox.Show("Your Reminder");
    }
}