我有3个文本框,(小时,分钟,秒),一个开始,暂停和停止按钮,我正在使用标签显示当前计时器。我也有一个间隔为1000
的计时器。我的问题是为什么不使用标签显示时间?其他所有东西都起作用,只是不会注册我已在文本框中输入值。
CodeStart计时器:
private void startbutton_Click(object sender, EventArgs e)
{
if (paused != true) //Timer is not paused (active)
{
int.TryParse(textBoxhrs.Text, out hours);
int.TryParse(textBoxmin.Text, out minutes);
int.TryParse(textBoxsec.Text, out seconds);
if (hours >= 1 || (minutes >= 1) || (seconds >= 1))
//If there is at least one integer entered in any of the 3 boxes, executes; else - //throws an exception
{
startbutton.Enabled = true;
pausebutton.Enabled = true; //changed the value to 'true'
stopbutton.Enabled = true; //changed the value to 'true'
textBoxhrs.Enabled = false;
textBoxmin.Enabled = false;
textBoxsec.Enabled = false;
}
else
{
MessageBox.Show("Enter at least one integer!");
}
}
}
private void stopbutton_Click(object sender, EventArgs e)
{
// Stop the timer.
paused = false;
timer1.Enabled = false;
startbutton.Enabled = true; //changed to true
stopbutton.Enabled = false; //changed to false
pausebutton.Enabled = false; //changed to false
textBoxsec.Clear();
textBoxmin.Clear();
textBoxhrs.Clear();
textBoxhrs.Enabled = true;
textBoxsec.Enabled = true;
textBoxmin.Enabled = true;
textBoxhrs.Enabled = true;
lblHr1.Text = "00";
lblMin1.Text = "00";
lblSec1.Text = "00";
MessageBox.Show("Timer is Stopped, to re-start press <Start>"); //updated to give user a chance to run the timer again after stoppage.
}
暂停按钮:
private void pausebutton_Click(object sender, EventArgs e)
{
// Pause the timer.
timer1.Enabled = false;
paused = true; //
startbutton.Enabled = true; // changed to true
pausebutton.Enabled = false; //changed to false
}
计时器:
private void timer1_Tick(object sender, EventArgs e)
{
// Verify if the time didn't pass.
if ((minutes == 0) && (hours == 0) && (seconds == 0))
{
// If the time is over, clear all settings and fields.
// Also, show the message, notifying that the time is over.
timer1.Enabled = false;
MessageBox.Show(textBoxMsg.Text);
pausebutton.Enabled = false;
stopbutton.Enabled = false;
startbutton.Enabled = true;
textBoxMsg.Clear();
textBoxsec.Clear();
textBoxmin.Clear();
textBoxhrs.Enabled = true;
textBoxMsg.Enabled = true;
textBoxsec.Enabled = true;
textBoxmin.Enabled = true;
textBoxhrs.Enabled = true;
lblHr1.Text = "00";
lblMin1.Text = "00";
lblSec1.Text = "00";
}
else
{
// Else continue counting.
if (seconds < 1)
{
seconds = 59;
if (minutes == 0)
{
minutes = 59;
if (hours != 0)
hours -= 1;
}
else
{
minutes -= 1;
}
}
else
seconds -= 1;
// Display the current values of hours, minutes and seconds in
// the corresponding fields.
lblHr1.Text = hours.ToString();
lblMin1.Text = minutes.ToString();
lblSec1.Text = seconds.ToString();
}
}
最佳答案
您需要做两件事才能使其正常工作:
您需要在startbutton_Click中启动计时器:
if (hours >= 1 || (minutes >= 1) || (seconds >= 1))
//If there is at least one integer entered in any of the 3 boxes, executes; else - //throws an exception
{
startbutton.Enabled = true;
...
timer1.Enabled = true;
}
您需要将timer Tick事件连接到timer1_Tick。您可以通过选择计时器并单击“属性”框架上的闪电工具栏图标,然后为“滴答”选择timer1_Tick来执行此操作。