Question

我需要有关计时器控制的帮助，我想在用户输入后设置时间，即在表单运行后用户输入文本框上午10:30，标签上的计时器将从上午10:30开始继续..

Answer 1

这是一个使用基本BackGroundWorker从WinForms应用程序中输入的日期/时间提前60秒的示例。如果您宁愿使用实际时间，请更改DateTime begin = DateTime.Parse（textbox_1.Text）; to DateTime begin = DateTime.Now; - 它不是世界上最迷人的解决方案，但无论如何，它都可以让你完成工作。祝你好运！

System.ComponentModel.BackGroundWorker textTime = new System.ComponentModel.BackGroundWorker();// use a reference Using System.ComponentModel; to avoid all this typing
private void button1_Click(object sender, EventArgs e){//this event could be a button click, or whatever else you want to start the process
    textTime.DoWork+= beginTextTimer;
    textTime.RunWorkerAsync();
}
private void beginTextTimer(object sender, DoWorkEventArgs e){
     DateTime begin = DateTime.Parse(textbox_1.Text);//assumes you've already done validation - use DateTime.Now if you don't require user's input
     int totalSeconds = 0;
     While(totalSeconds < 60){
        totalSeconds = DateTime.Now.Subtract(begin).TotalSeconds;//since you're pausing 1 second, you could just increment an integer here rather than doing a DateTime calculation - this works no matter what the pause is
         MethodInvoker mI = () => { 
             textBox_1.Text = begin.AddSeconds(totalSeconds).ToString(); 
         };
         BeginInvoke(mI);//these two lines invoke back to the UI thread to change the textbox value    
         System.Threading.Thread.Sleep(1000);     
      }
}

Answer 2

使用此代码希望它有用.....

命名空间WindowsFormsApplication1 { 公共部分类Form1：表格 { static Int32 sec = 0; static Int32 minut = 0; 串m; 字符串s; 公共Form1（） { 的InitializeComponent（）; }

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                <li><span><img src="http://localhost/demo/wp-content/uploads/2016/09/serimg-1.png" alt="serimg" width="24" height="18" class="alignnone size-full wp-image-1139"></span>Chrysler Repair</li>
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}

如何根据C＃windows应用程序中的用户条目设置定时器控制？

2 个答案: