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();
}
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.
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();
}
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;
}
My program has a parameter that starts up the winform and waits x number of seconds before it runs a function. Currently I am using Thread Sleep for x seconds and then the function runs. how can I add a timer in the strip status label?
so that it says: x Seconds Remaining...
Instead of blocking thread execution, simply call your method when required timeout passes. Place new Timer to your form, and set it's Interval to 1000. Then subscribe to timer's Tick event and calculate elapsed time in event handler:
private int secondsToWait = 42;
private DateTime startTime;
private void button_Click(object sender, EventArgs e)
{
timer.Start(); // start timer (you can do it on form load, if you need)
startTime = DateTime.Now; // and remember start time
}
private void timer_Tick(object sender, EventArgs e)
{
int elapsedSeconds = (int)(DateTime.Now - startTime).TotalSeconds;
int remainingSeconds = secondsToWait - elapsedSeconds;
if (remainingSeconds <= 0)
{
// run your function
timer.Stop();
}
toolStripStatusLabel.Text =
String.Format("{0} seconds remaining...", remainingSeconds);
}
You can use a Timer:
public class Form1 : Form {
public Form1(){
InitializeComponent();
t = new Timer {Interval = 1000};
t.Tick += Tick;
//try counting down the time
CountDown(100);
}
DateTime start;
Timer t;
long s;
public void CountDown(long seconds){
start = DateTime.Now;
s = seconds;
t.Start();
}
private void Tick(object sender, EventArgs e){
long remainingSeconds = s - (DateTime.Now - start).TotalSeconds;
if(remainingSeconds <= 0) {
t.Stop();
toolStripStatusLabel1.Text = "Done!";
return;
}
toolStripStatusLabel1.Text = string.Format("{0} seconds remaining...", remainingSeconds);
}
}
Hi I am working with Windows.Forms.Timer with Web Application . I create Timer.Tick event handler to handle Timer_Tick but I am not successfull. I don't get any error but I can not get result even. Here is my code
System.Windows.Forms.Timer StopWatchTimer = new System.Windows.Forms.Timer();
Stopwatch sw = new Stopwatch();
public void StopwatchStartBtn_Click(object sender, ImageClickEventArgs e)
{
StopWatchTimer.Enabled = true;
StopWatchTimer.Interval = 1;
StopWatchTimer.Start();
this.StopWatchTimer.Tick += new EventHandler(StopWatchTimer1_Tick);
sw.Start();
}
protected void StopWatchStopBtn_Click(object sender, ImageClickEventArgs e)
{
StopWatchTimer.Stop();
sw.Reset();
StopWatchLbl.Text = "00:00:00:000";
}
public void StopWatchTimer1_Tick(object sender,EventArgs e)
{
TimeSpan elapsed = sw.Elapsed;
StopWatchLbl.Text = string.Format("{0:00}:{1:00}:{2:00}:{3:00}",
Math.Floor(elapsed.TotalHours),
elapsed.Minutes,
elapsed.Seconds,
elapsed.Milliseconds);
}
From the MSDN documentation for Windows Forms Timer (emphasis mine):
Implements a timer that raises an event at user-defined intervals. This timer is optimized for use in Windows Forms applications and must be used in a window.
This timer will not work in a web application. You'll need to use another class, like System.Timers.Timer. This has it's own pitfalls, however.
Did you try defining the Tick event prior to starting the timer?
this.StopWatchTimer.Tick += new EventHandler(StopWatchTimer1_Tick);
StopWatchTimer.Start();
public partial class TestFrom : Form
{
private Thread threadP;
private System.Windows.Forms.Timer Timer = new System.Windows.Forms.Timer();
private string str;
public TestFrom()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
Timer.Interval =100;
Timer.Tick += new EventHandler(TimeBussiness);
Timer.Enabled = true;
Timer.Start();
Timer.Tag = "Start";
}
void TimeBussiness(object sender, EventArgs e)
{
if (threadP.ThreadState == ThreadState.Running)
{
Timer.Stop();
Timer.Tag = "Stop";
}
else
{
//do my bussiness1;
}
}
private void button3_Click(object sender, EventArgs e)
{
ThreadStart threadStart = new ThreadStart(Salver);
threadP= new Thread(threadStart);
threadP.Start();
}
private void Salver()
{
while (Timer.Tag == "Stop")
{
}
//do my bussiness2;
Timer.Start();
Timer.Tag = "Start";
}
}