Question

如何在达到零时停止计时器？我在这里有这个窗体表格代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Timers;
namespace SoftwareEngineering
{
    public partial class MainGame : Form
    {
        int minutes = 2;
        int seconds = 0;
        private TimeSpan countdowntime;

        public MainGame()
        {
            InitializeComponent();
            StartPosition = FormStartPosition.CenterScreen;
        }
        private void NewGame_Click(object sender, EventArgs e)
        {
            setcountdown(minutes, seconds);
            timer1.Enabled = true;
            timer1.Start();
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            TimeSpan tSecond = new TimeSpan(0, 0, 1);
            countdowntime = countdowntime.Subtract(tSecond);


            if(seconds > 0)
            {
                timeremaining.Text = countdowntime.Minutes.ToString() + ":" + countdowntime.Seconds.ToString();

            }
            else
            {
                timeremaining.Text = "Times Up!";
                timer1.Stop();
            }
        }
        private void setcountdown(int min,int sec)
        {
            TimeSpan temp = new TimeSpan(0 , min , sec);
            countdowntime = temp;
        }

代码有效但一旦达到“0：0”，它将继续递减到“0：-1”等等，我的条件在停止计时器时似乎不起作用。

这是我的上述条件：

        if(seconds > 0)
        {
            timeremaining.Text = countdowntime.Minutes.ToString() + ":" + countdowntime.Seconds.ToString();

        }
        else
        {
            timeremaining.Text = "Times Up!";
            timer1.Stop();
        }

Answer 1

根据我的意见。您可以将计时器代码更改为此。它将从显示您的初始值

开始

private void timer1_Tick(object sender, EventArgs e)
{
    //I've edited you're code if(countdowntime.TotalSeconds > 0)
    //to this because @ "0:1" It will display Times Up
    if (countdowntime.TotalSeconds >= 0)
    {
        timeremaining.Text = countdowntime.Minutes.ToString() + ":" + countdowntime.Seconds.ToString();
    }
    else
    {
        timeremaining.Text = "Times Up!\r\n";
        timer1.Stop();
        return;
    }

    TimeSpan tSecond = new TimeSpan(0, 0, 1);
    countdowntime = countdowntime.Subtract(tSecond);
}

Answer 2

我不确定这会有效，但我认为它会：

private void timer1_Tick_1(object sender, EventArgs e)
{
   counter--; [COLOR=#006400]//Decrease the counter, just like the timer decreases.[/COLOR]
   if (counter == 0) [COLOR=#006400]//If we hit 0, or any other number we'd like to check.[/COLOR]
    {
      MessageBox.Show("Time Up!");
      counter = timer.Interval;[COLOR=#006400]//Reset the counter.[/COLOR]
      timer.Start();[COLOR=#006400]//Re-start the timer.[/COLOR]
    }        
}

DEMO Page

Stop Number

达到零时停止计时器

2 个答案: