How Can I Stop Clock After 10 Seconds (Example) Like Chess Clock?

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C#

Stopwatch ss = new Stopwatch();

public MainWindow()
{
    InitializeComponent();
}

private void button2_Click(object sender, RoutedEventArgs e)
{
    ss.Reset();
    MessageBox.Show("CLICK START BUTTON", "END");
}
private void button1_Click(object sender, RoutedEventArgs e)
{
    ss.Start();
    MessageBox.Show("Play Now","GO");
    listBox1.Items.Add(String.Format("{0:00} : {1:00} :
    {2:00}",ss.Elapsed.Hours, ss.Elapsed.Minutes, ss.Elapsed.Seconds));
    DateTime m = DateTime.Now;
    DateTime n = DateTime.Now.AddSeconds(10);
    int l = 5;
    for (int i = 0; i <= l; i++)
    {
        l++;
        if (m == n)
        {
            ss.Stop();
            MessageBox.Show("end time", "Change Player");
        }
        else
        {
            MessageBox.Show("Continue");
        }
    }
}

Posted 4-Feb-14 8:01am

omar-ahmed99

Updated 4-Feb-14 9:17am

Volynsky Alex

v5

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OriginalGriff · Accepted Answer · 2014-02-04T08:26:00

Solution 2

A Chess clock is slightly complex, but not too bad: it consists of two clock displays which can't run together and a switch to toggle between them.
So to make a chess clock, you need two labels, two buttons, and two Elapsed time indicators.
Personally, I would disagree with Abhinav, and go with a pair of stopwatches - one for each player, but with a timer added to display the current values.
A Stopwatch has two important methods here: Start and Stop - and it's important to note that neither of these affect the actual value in the Stopwatch - they just stop and start it changing.
So if you have a Timer which updates the two displays:

C#

private Stopwatch blackTimer = new Stopwatch();
private Stopwatch whiteTimer = new Stopwatch();
void tDisplay_Tick(object sender, EventArgs e)
    {
    labBlack.Text = ((double)blackTimer.ElapsedMilliseconds / 1000.0).ToString("0.0");
    labWhite.Text = ((double)whiteTimer.ElapsedMilliseconds / 1000.0).ToString("0.0");
    }

Then all you need are two simple button handlers:

C#

private void butBlack_Click(object sender, EventArgs e)
    {
    butBlack.Enabled = false;
    whiteTimer.Stop();
    blackTimer.Start();
    butWhite.Enabled = true;
    }

private void butWhite_Click(object sender, EventArgs e)
    {
    butWhite.Enabled = false;
    blackTimer.Stop();
    whiteTimer.Start();
    butBlack.Enabled = true;
    }

Posted 4-Feb-14 8:26am

OriginalGriff

Comments

omar-ahmed99 5-Feb-14 5:12am

what about XAML controls?
OriginalGriff

OriginalGriff 5-Feb-14 5:23am

What about them?

omar-ahmed99 5-Feb-14 5:55am

only Two buttons

OriginalGriff 5-Feb-14 6:09am

Yes...

omar-ahmed99 5-Feb-14 6:30am

OK no errors in the code but it can not view the clock
i want to stop it after 30 seconds

OriginalGriff 5-Feb-14 6:43am

"OK no errors in the code but it can not view the clock"
Did you wire up the Tick event handler to a Timer with an appropriate interval?
"i want to stop it after 30 seconds"
So add a "seconds" counter to the Tick handler, and call Stop on both stopwatches when it reaches 30.

omar-ahmed99 5-Feb-14 7:14am

Tick event handler dont work

OriginalGriff 5-Feb-14 7:29am

"dont work" is not very helpful - what does or doesn't happen?
Did you start the timer? Did you give it a "sensible" Interval value (100 or 1/10th second is probably about right)?

omar-ahmed99 5-Feb-14 7:39am

this is the code
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private Stopwatch blackTimer = new Stopwatch();
private Stopwatch whiteTimer = new Stopwatch();
void tDisplay_tick(object sender, EventArgs e)
{

labblack.Content = string.Format("{0:00}", blackTimer.Elapsed.Seconds);
labwhite.Content = ((double)whiteTimer.ElapsedMilliseconds/1000.0).ToString("0.0");
}

private void button1_Click(object sender, RoutedEventArgs e)
{
button1.IsEnabled = false;
blackTimer.Stop();
whiteTimer.Start();
listBox1.Items.Add(string.Format("{0:00}:{1:00}",whiteTimer.Elapsed.Minutes,whiteTimer.Elapsed.Seconds));
button2.IsEnabled = true;
}

private void button2_Click(object sender, RoutedEventArgs e)
{
button2.IsEnabled = false;
whiteTimer.Stop();
blackTimer.Start();
listBox2.Items.Add(string.Format("{0:00}:{1:00}",blackTimer.Elapsed.Minutes,blackTimer.Elapsed.Seconds));
button1.IsEnabled = true;
}
}

OriginalGriff 5-Feb-14 8:09am

Yes - and you haven't created a Timer, or given it an interval, or hooked the Handler method onto it...
Add this code to your constructor:
Timer tDisplay = new Timer();
tDisplay.Interval = 100;
tDisplay.Tick += new EventHandler(tDisplay_Tick);
tDisplay.Start();

omar-ahmed99 6-Feb-14 6:48am

Sorry OriginalGriff
There is one Error
Error 1 'System.Timers.Timer' does not contain a definition for 'Tick' and no extension method 'Tick' accepting a first argument of type 'System.Timers.Timer' could be found (are you missing a using directive or an assembly reference?)

OriginalGriff 6-Feb-14 7:43am

Different timer, same principle: look at the Elapsed event instead.
(There are several different Timer classes in .NET)

omar-ahmed99 6-Feb-14 7:45am

OK i will Try Again

Abhinav S · Accepted Answer · 2014-02-04T08:07:00

Solution 1

The Stopwatch class is not the best class to handle elapsed events. Use a System.Timer.Timer and subscribe to the Elapsed event.

Posted 4-Feb-14 8:07am

Abhinav S

Comments

omar-ahmed99 5-Feb-14 4:49am

how can i use System.Timer.Timer