I know this is a common question but I can't seem to get it right. I have a form that goes out to gmail and processes some emails. I want to have a timer on the form to count how long the action has been running for. So once a user click the "start import" button I want the timer to start and once the "finished" messagebox appears it should stop. Here is what I have so far
Right now, the timer is just stays at the default text of "00";
namespace Import
{
public partial class Form1 : Form
{
Timer timer;
public Form1()
{
InitializeComponent();
}
private void btn_Import_Click(object sender, EventArgs e)
{
timer = new Timer();
timer.Interval = (1000);
timer.Enabled = true;
timer.Start();
timer.Tick += new EventHandler(timer_Tick);
// code to import emails
MessageBox.Show("The import was finished");
private void timer_Tick(object sender, EventArgs e)
{
if (sender == timer)
{
lblTimer.Text = GetTime();
}
}
public string GetTime()
{
string TimeInString = "";
int min = DateTime.Now.Minute;
int sec = DateTime.Now.Second;
TimeInString = ":" + ((min < 10) ? "0" + min.ToString() : min.ToString());
TimeInString += ":" + ((sec < 10) ? "0" + sec.ToString() : sec.ToString());
return TimeInString;
}
}
}
}
This is just one of many ways to do it. Of course, I would do it on background worker but this is legit way to get what you want:
Timer timer;
Stopwatch sw;
public Form1()
{
InitializeComponent();
}
private void btn_Import_Click(object sender, EventArgs e)
{
timer = new Timer();
timer.Interval = (1000);
timer.Tick += new EventHandler(timer_Tick);
sw = new Stopwatch();
timer.Start();
sw.Start();
// start processing emails
// when finished
timer.Stop();
sw.Stop();
lblTime.text = "Completed in " + sw.Elapsed.Seconds.ToString() + "seconds";
}
private void timer_Tick(object sender, EventArgs e)
{
lblTime.text = "Running for " + sw.Elapsed.Seconds.ToString() + "seconds";
Application.DoEvents();
}
Related
initialize the components
System.Timers.Timer t;
int h, m, s;
I want to reset the timer when I click on the reset button and turn it to 00.00.00, but when I try to reset it with the code the timer stops. But when I start the timer and stop it, it doesn't get reset to 00.00.00
Method of timer
private void OnTimeEvent(object sender, ElapsedEventArgs e)
{
Invoke(new Action(() =>
{
s += 1;
if (s == 60)
{
s = 0;
m += 1;
}
if (m == 60)
{
m = 0;
h += 1;
}
lbltime.Text = string.Format("{0}:{1}:{2}", h.ToString().PadLeft(2, '0'),
m.ToString().PadLeft(2, '0'), s.ToString().PadLeft(2, '0'));
}));
}
Form load event
t = new System.Timers.Timer();
t.Interval = 1000;
t.Elapsed += OnTimeEvent;
t.Start();
Reset Button Which is not working
t.Dispose();
Try something like this:
Stopwatch stopwatch = Stopwatch.StartNew();
private void OnTimeEvent(object sender, ElapsedEventArgs e)
{
Invoke(new Action(() => lbltime.Text = stopwatch.Elapsed.ToString("hh:mm:ss")));
}
private void OnResetButtonClick(object sender, EventArgs e)
{
stopwatch.Restart();
}
This uses a stopwatch to measure the time, and a timer to update the label from the stopwatch. This will also be much more accurate since timers do not guarantee any particular tick-frequency.
Hello so I want to make a code that does this. I keep clicking and if the time between clicks is >= 2000ms then write something in label else keep clicking.
Stopwatch sw = new Stopwatch();
double tt = 2000;
double duration = sw.ElapsedMilliseconds;
private void button1_Click(object sender, EventArgs e)
{
sw.Start();
if (duration >= tt)
{
label1.Text = "Speed reached!";
}
else
{
sw.Stop();
duration = 0;
}
}
Modify your code as follows:
private void button1_Click(object sender, EventArgs e)
{
sw.Stop();
if (sw.Elapsed.Milliseconds >= tt)
{
label1.Text = "Speed reached!";
}
else
{
sw.Reset();
sw.Start();
}
}
If I understand your question correctly you want something like this:
Stopwatch sw = new Stopwatch();
double tt = 2000;
private void button1_Click(object sender, EventArgs e)
{
sw.Stop();
if (sw.ElapsedMilliseconds >= tt)
{
label1.Text = "Speed reached!";
}
sw.Reset();
sw.Start();
}
This will start a stopwatch on the first click and then on each click it will measure the time between the clicks.
private void button1_Click(object sender, EventArgs e)
{
Session["PrevClickTime"] = Session["PrevClickTime"] ?? DateTime.Now.AddDays(-1);
if (((DateTime)Session["PrevClickTime"]).Subtract(DateTime.Now).Milliseconds >= 2000)
{
label1.Text = "Speed reached!";
}
else
{
// do y
}
Session["PrevClickTime"] = DateTime.Now
}
sw.ElapsedMilliseconds is a value type, not a reference type
If you assign it to a variable and ElapsedMilliseconds changes
your variable won't change
Also, put start at the end of your code
This should work
Stopwatch sw = new Stopwatch();
double tt = 2000;
private void button1_Click(object sender, EventArgs e)
{
if (sw.ElapsedMilliseconds >= tt)
{
label1.Text = "Speed reached!";
}
else
{
sw.Stop();
sw.Reset();
}
sw.Start();
}
I would suggest another approach where you could remove the click event handler on each click and start a timer for 2 seconds and on the tick of the timer, attach the click event handler again.
Here is the sample code:
System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer() { Interval = 2000 }; // here time in milliseconds
private void button1_Click(object sender, EventArgs e) // event handler of your button
{
button1.Click -= button1_Click; // remove the event handler for now
label1.Text = "Speed reached!";
// remove already attached tick handler if any, otherwise the handler would be called multiple times
timer.Tick -= timer_Tick;
timer.Tick += timer_Tick;
timer.Start();
}
void timer_Tick(object sender, System.EventArgs e)
{
button1.Click += button1_Click; // attach the event handler again
timer.Stop();
}
I'm coding a Family Feud game in C# and after each answer is submitted the 30-second timer is supposed to reset. The problem is I'm accumulating 1-second Intervals so that the counter is counting down faster and faster. I can't figure out how to prevent the Intervals from accumulating. I want it to stay a fixed 1 seconds no matter how many times the button is pressed.
Code:
public System.Windows.Forms.Timer _timer = new System.Windows.Forms.Timer();
public int time = 30;
private void Check_Click(object sender, RoutedEventArgs e)
{
time = 30;
_timer.Tick += timer_Tick;
_timer.Start();
uxLabel1.Content = time.ToString();
//additional code
}
private void timer_Tick(object sender, EventArgs e)
{
_timer.Interval = 1000;
time--;
if (time == 0)
{
_timer.Stop();
strike();
}
uxLabel1.Content = time.ToString();
}
Don't put _timer.Tick += timer_Tick; in the button click code, put it once in the constructor of your form and have that be the only event registration.
public partial class YourForm : Form
{
public YourForm()
{
InitializeComponets();
_timer = new System.Windows.Forms.Timer();
_timer.Tick += timer_Tick;
_timer.Interval = 1000;
}
private System.Windows.Forms.Timer _timer;
private int time = 30;
private void Check_Click(object sender, RoutedEventArgs e)
{
time = 30;
_timer.Start();
uxLabel1.Content = time.ToString();
//additional code
}
private void timer_Tick(object sender, EventArgs e)
{
time--;
if (time == 0)
{
_timer.Stop();
strike();
}
uxLabel1.Content = time.ToString();
}
}
I have a timer in a console app:
using System.Timers;
Timer Timer = new Timer();
I gave it an interval, and it does stuff at _timer_Elapsed method periodically:
Timer.Elapsed += _timer_Elapsed;
Timer.Enabled = true;
private static void _timer_Elapsed(object sender, ElapsedEventArgs e)
{
...
}
How can I create a second timer that counts down until this timer starts?
Create a second timer that elapses every second and use the following code to count down and a write message to the console.
#define COUNTDOWN_SECONDS 10
private int CountDownValue = COUNTDOWN_SECONDS;
private static void _timer2_Elapsed(object sender, ElapsedEventArgs e)
{
WriteConsoleMessage(CountDownValue--);
if (CountDownValue == 0)
{
// Stop timer2
// Start timer1
}
}
private static void WriteConsoleMessage(int Value)
{
if (Value < COUNTDOWN_SECONDS)
Console.CursorLeft = 0; // Reset cursor to start of the line
Console.Write(string.Format("{0} Seconds until timer starts", Value.ToString());
}
Heres how i did it:
public static int Interval = 5000;
public static int IntervalLeft = Interval;
Timer.Elapsed += _timer_Elapsed;
Timer.Enabled = true;
Timer.Interval = Interval;
CountDownTimer.Elapsed += _CountDowntimer_Elapsed;
CountDownTimer.Enabled = true;
CountDownTimer.Interval = 1000;
CountDownTimer.Start();
private static void _timer_Elapsed(object sender, ElapsedEventArgs e)
{
CountDownTimer.Stop();
Timer.Stop();
DOES THE JOB HERE
Timer.Start();
CountDownTimer.Start();
IntervalLeft = Interval;
}
private static void _CountDowntimer_Elapsed(object sender, ElapsedEventArgs e)
{
Zipper.ClearCurrentConsoleLine();
IntervalLeft = (IntervalLeft - 1000);
Console.Write("Starts in" + IntervalLeft/1000);
}
The first timer one stops the second timer when it elapses...
How can I change the text of button with timeout? I tried out with the following code but it is not working.
private void button1_Click(object sender, EventArgs e)
{
Stopwatch sw = new Stopwatch();
sw.Start();
if (button1.Text == "Start")
{
//do something
button1.Text = "stop"
if (sw.ElapsedMilliseconds > 5000)
{
button1.Text = "Start";
}
}
How can I correct my code?
You need to use Timer instead:
Timer t = new Timer(5000); // Set up the timer to trigger on 5 seconds
t.SynchronizingObject = this; // Set the timer event to run on the same thread as the current class, i.e. the UI
t.AutoReset = false; // Only execute the event once
t.Elapsed += new ElapsedEventHandler(t_Elapsed); // Add an event handler to the timer
t.Enabled = true; // Starts the timer
// Once 5 seconds has elapsed, your method will be called
void t_Elapsed(object sender, ElapsedEventArgs e)
{
// The Timer class automatically runs this on the UI thread
button1.Text = "Start";
}
Stopwatch is only for measuring how much time has passed since you called Start().
If you're using C# 5
private async void button1_Click(object sender, EventArgs e)
{
button1.Text = "Stop";
await Task.Delay(5000);
button1.Text = "Start";
}
You could use a timer. In this example the text of the button changes to "Stop" after 5 seconds.
private Timer timer = new Timer();
private void button1_Click(object sender, EventArgs e)
{
timer.Interval = 5000; // interval length
timer.Tick += TimerOnTick;
timer.Enabled = true; // activate timer
button1.Text = "Start";
}
private void TimerOnTick(object sender, EventArgs eventArgs)
{
timer.Enabled = false; // deactivate timer
button1.Text = "Stop";
}
I think you can reach your goal by using Timer
Example of using Timer
public partial class FormWithTimer : Form
{
Timer timer = new Timer();
public FormWithTimer()
{
InitializeComponent();
// Everytime timer ticks, timer_Tick will be called
timer.Tick += new EventHandler(timer_Tick);
timer.Interval = (1000) * (1); // Timer will tick every second
timer.Enabled = true; // Enable the timer
}
// .......
showForm() // declaration
{
timer.start();
// .......
timer.stop();
}
void timer_Tick(object sender, EventArgs e)
{
//hide form...through visibility
}
}
Use this instead of Stopwatch:
private void button1_Click(object sender, EventArgs e)
{
button1.Text = "stop"
aTimer = new System.Timers.Timer(5000);
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
aTimer.Enabled = true;
}
// Specify what you want to happen when the Elapsed event is raised.
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
button1.Text = "Start";
var atim = source as Timer;
if (atim != null)
atim.Elapsed -= OnTimedEvent;
}