显示标签和进度条中的剩余时间 [英] Displaying remaining time in a label and progress bar
本文介绍了显示标签和进度条中的剩余时间的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的功能从早上8点开始,到早上8:45结束。该功能显示我们在该时间段内的剩余时间。如何在进度条中显示进度?
这是我到目前为止:
I have a function that starts at 8am and ends at 8:45 am. That function displays the remaining time when we are in that time period. How could I display the progress in the progress bar?
Here is what I have so far:
private void timerPeriods_Tick(object sender, EventArgs e)
{
DateTime date_time_now = DateTime.Now;
//Period 1 8:00 - 8:45AM
DateTime date_time_Period1End = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 08, 45, 0);
//Remaining time to end of period 1
TimeSpan time_span = date_time_Period1End - date_time_now;
//conditions
if (date_time_Period1End > date_time_now)
{
//Progress bar ?
string time = string.Format("{0:00}:{1:00}:{2:00}", time_span.Hours, time_span.Minutes, time_span.Seconds);
lblP1CountDown.Text = "Left: " + time;
}
else
{
lblP1CountDown.Text = "Done";
}
推荐答案
假设你的计时器是System.Windows.Forms.Timer;
Assuming that your timer is System.Windows.Forms.Timer ;
var timerPeriods = new Timer();
timerPeriods.Interval = 1000;
timerPeriods.Tick += timerPeriods_Tick;
timerPeriods.Start();
progressBar1.Maximum = 2700; // for 45 min
void timerPeriods_Tick(object sender, EventArgs e)
{
var curTime = DateTime.Now.TimeOfDay;
var refTime1 = new TimeSpan(8, 0, 0);
var refTime2 = new TimeSpan(8, 45, 0);
if (curTime >= refTime1 && curTime <= refTime2)
{
var tsleft = refTime2.Subtract(curTime);
lblP1CountDown.Text = tsleft.ToString(@"hh\:mm\:ss");
progressBar1.Value++;
}
else
{
lblP1CountDown.Text = "Done";
(sender as Timer).Stop();
}
}
更通用的方法,如果你在两者之间启动计时器时间段不在refTime1之前;
More generic way, if you start timer between time period not before refTime1 ;
var timerPeriods = new Timer();
timerPeriods.Interval = 1000;
timerPeriods.Tick += timerPeriods_Tick;
timerPeriods.Start();
progressBar1.Maximum = 100;
void timerPeriods_Tick(object sender, EventArgs e)
{
var curTime = DateTime.Now.TimeOfDay;
var refTime1 = new TimeSpan(8, 0, 0);
var refTime2 = new TimeSpan(8, 45, 0);
if (curTime >= refTime1 && curTime <= refTime2)
{
var tsleft = refTime2.Subtract(curTime);
lblP1CountDown.Text = tsleft.ToString(@"hh\:mm\:ss");
progressBar1.Value = 100 - (int)( tsleft.TotalSeconds * 100 /refTime2.Subtract(refTime1).TotalSeconds);
}
else
{
lblP1CountDown.Text = "Done";
(sender as Timer).Stop();
}
}
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