如何制作固定报警器？ [英] How to make a fixed alarm ?

问题描述

我想得到相同的结果但是在if条件下使用（日期时间）并计算剩余时间来报警。



感谢您的回复。

I would like to make the same result but by using (date time) in if condition and count the rest time to alarm.

Thanks for the reply.

using system.media;

//code in time tick
   private void timer1_Tick(object sender, EventArgs e)
        {
            label2.Text = DateTime.Now.ToString("hh:mm:ss") + " " + DateTime.Now.ToString("tt");

        }
//code in form_load 
   private void Form1_Load(object sender, EventArgs e)
        {
            soundplay snplayer= new soundplay (alarm_test.properties.resources.alarm);
            if (label2.text=="06:00:00 AM")
                snplayer.play();
        }

推荐答案

您的代码存在一些问题。

There are a couple of things wrong with your code.

1. 设置 label2 的文本应简化为：
   
   

1. Setting the text of label2 should be simplified to:
   

label2.Text = DateTime.Now.ToString("hh:mm:ss tt");

正如其他人已经指出的那样，移动 if 测试计时器滴答处理程序，如：

As others have already pointed out, move the if test to the timer tick handler, as in:

if (DateTime.Now.TimeOfDay == TimeSpan.FromHours(6)) {
    snplayer.play();
}

警告：你仍然可以找到 sndplayer.play（）永远不会执行！  你能猜到为什么吗？



/ ravi

Warning: You may still find sndplayer.play() will never execute!  Can you guess why?

/ravi

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