Save remaining seconds in countdown timer - c#

I have a problem. I want to save the remaining seconds in countdown timer (for example, the remaining time = 12 seconds) i want to save that 12 seconds in a variable.
this is my code
int order = 0;
bool right = true;
DispatcherTimer timer1 = new DispatcherTimer();
private void timer_start()
{
timer1.Interval = new TimeSpan(0, 0, 0, 1);
timer1.Tick += new EventHandler(timer1_Tick);
timer1.Start();
}
int remainingSecond;
int tik = 15;
void timer1_Tick(object sender, EventArgs e)
{
this.Timer.Text = tik.ToString();
if (tik > 0)
{
tik--;
if (this.order >= 5)
{
timer1.Stop();
if (right)
{
remainingSecond = tik;
}
else
remainingSecond = 0;
}
}
else
{
remainingSecond = 0;
timer1.Stop();
}
}
everytime I write "remainingSecond" , its value is always 0. I wish that remainingSecond value is 12. Help me, please. Thanks

You assigned order = 0 but did not increase it any where and set this condition
if (this.order >= 5) which will never true. So it will keep decrementing your tik and at the end your this condition if (tik > 0) will become false. So else will be executed and it will set your remainingSecond to ZERO. Thats why you are getting ZERO as output.
Your timer is ticking in every 1milisecond. The timer will start, and it will tick immediately, at that time order will be zero, and your else statement will get executed that will set remainingSeconds to ZERo and will Stop the timer as well. So the clicking on the buttons won't do anything for you.

Try to set the interval for 1 second instead of 1 millisecond

Related

enable function at timer stop c#

I guess this question has been asked like a 1000 times but I donĀ“t know what I`m doing wrong. I use a timer in C#. If it expires, a value should be set to 1 in order to enable an other function. My intention is to block a function till the timer ticks. If the timer stops, the new function should be enable.
using System.Timers;
public float testNumber;
private Timer timer;
void Gearup ()
{
if (currentGear < 5) {
currentGear = currentGear + 1;
timer = new Timer ();
timer.Interval=2000;
timer.AutoReset = true;
timer.Start();
testNumber = 10;
}
if (timer.Enabled != false) {
testNumber = 1;
}
Could you guys help me ? Every time I test my code, test number is immediately set to 1. Please be gentle, I know that I
am a noob.
update Question: My problem is, that my game character should shift a gear in the game. Once the gear is shifted, the character shouldnt be allowed to shift it right back. Thats why i want to block the shift function for a coupe of seconds.
So you need to start a timer with an interval of two seconds. When the timer elapses you want to set the variable testNumber to one.
This happens just one time then stops.
Then you should set the AutoReset property to false and add an event handler for the Elapsed event
testNumber = 10;
Timer timer = new Timer();
timer.Elapsed += (s, o) =>
{
Console.WriteLine("Timer elapsed");
testNumber = 1;
};
timer.Interval = 2000;
timer.AutoReset = false;
timer.Start();
Now you don't need to stop and check anything. Continue with your code exiting from the Gearup method. The global variable testNumber will be set to 1 after the Interval period elapses.
When your timer starts timer.Enabled is set to true. And then your programm jumps in the
if (timer.Enabled != false) {
testNumber = 1;
}
block. Because timer.Enabled is not equal false it's true! You have to cahnge it to
if (timer.Enabled == false) {
testNumber = 1;
//for timer restart use:
timer.Start();
}
or
if (timer.Enabled != true) {
testNumber = 1;
//for timer restart use:
timer.Start();
}

How can I convert the timer from counting back in seconds to count back in minutes and seconds?

I have numericUpDown1 that when I set its value it's saving the value in options text file:
private void numericUpDown1_ValueChanged(object sender, EventArgs e)
{
Options_DB.Set_Radar_Images_Time(numericUpDown1.Value);
}
timer1 interval set to 1000ms in the form1 designer.
In timer1 tick event I have:
private void timer1_Tick(object sender, EventArgs e)
{
numbers_radar = Convert.ToInt64(numericUpDown1.Value);
}
Now I want to assign the timer tick event to: label21.Text and display the minutes counting down.
If I set the numericUpDown1 to 10 so it will count down 10 minutes.
The format should be like: minutes:seconds (00:00).
And each time the timer get to 1 it should call this method: fileDownloadRadar();
Each time when it's get to 1 the timer should be reset to the numericUpDown1 value and start over again counting back and each time in the end to call the method fileDownloadRadar();
The numericUpDown1 is set to minimum 5 and maximum 60
EDIT
Now i tried this code but i don't see anything change on label21 when starting the timer.
And minutes is starting as 0 but should be in this case 29(value of numericUpDown1).
And should i check if minutes and seconds == 1 or == 0 ? What's more logic 1 or 0 ?
private void timer1_Tick(object sender, EventArgs e)
{
numOfMinutes = Convert.ToInt32(numericUpDown1.Value);
int seconds = numOfMinutes % 60;
int minutes = numOfMinutes / 60;
seconds --;
string time = minutes + ":" + seconds;
label21.Text = time;
if (seconds == 1)
{
minutes --;
}
if (minutes == 1 && seconds == 1)
{
numOfMinutes = Convert.ToInt32(numericUpDown1.Value);
fileDownloadRadar();
}
}
I think you could better use a TimeSpan object and start as follows.
declare a TimeSpan variable in your object (thus a private field):
private TimeSpan span;
Just below the code where you start the timer, initialize the span variable:
timer1.Start(); // this should exist somewhere
TimeSpan span = new TimeSpan(0, numericUpDown1.Value, 0);
In your timer event handler, write this code:
private void timer1_Tick(object sender, EventArgs e)
{
span = span.Subtract(new TimeSpan(0, 0, 1));
label21.Text = span.ToString(#"mm\:ss");
if (span.TotalSeconds < 1)
{
span = new TimeSpan(0, numericUpDown1.Value, 0);
fileDownloadRadar();
}
}
I'm not sure what you want in the if statement, but I hope this will help you further.

C# timer stop after some number of ticks automatically

How to stop a timer after some numbers of ticks or after, let's say, 3-4 seconds?
So I start a timer and I want after 10 ticks or after 2-3 seconds to stop automatically.
Thanks!
You can keep a counter like
int counter = 0;
then in every tick you increment it. After your limit you can stop timer then. Do this in your tick event
counter++;
if(counter ==10) //or whatever your limit is
yourtimer.Stop();
When the timer's specified interval is reached (after 3 seconds), timer1_Tick() event handler will be called and you could stop the timer within the event handler.
Timer timer1 = new Timer();
timer1.Interval = 3000;
timer1.Enabled = true;
timer1.Tick += new System.EventHandler(timer1_Tick);
void timer1_Tick(object sender, EventArgs e)
{
timer1.Stop(); // or timer1.Enabled = false;
}
i generally talking because you didn't mention which timer, but they all have ticks... so:
you'll need a counter in the class like
int count;
which you'll initialize in the start of your timer, and you'll need a dateTime like
DateTime start;
which you'll initialize in the start of your timer:
start = DateTime.Now;
and in your tick method you'll do:
if(count++ == 10 || (DateTime.Now - start).TotalSeconds > 2)
timer.stop()
here is a full example
public partial class meClass : Form
{
private System.Windows.Forms.Timer t;
private int count;
private DateTime start;
public meClass()
{
t = new Timer();
t.Interval = 50;
t.Tick += new EventHandler(t_Tick);
count = 0;
start = DateTime.Now;
t.Start();
}
void t_Tick(object sender, EventArgs e)
{
if (count++ >= 10 || (DateTime.Now - start).TotalSeconds > 10)
{
t.Stop();
}
// do your stuff
}
}
Assuming you are using the System.Windows.Forms.Tick. You can keep track of a counter, and the time it lives like so. Its a nice way to use the Tag property of a timer.
This makes it reusable for other timers and keeps your code generic, instead of using a globally defined int counter for each timer.
this code is quiet generic as you can assign this event handler to manage the time it lives, and another event handler to handle the specific actions the timer was created for.
System.Windows.Forms.Timer ExampleTimer = new System.Windows.Forms.Timer();
ExampleTimer.Tag = new CustomTimerStruct
{
Counter = 0,
StartDateTime = DateTime.Now,
MaximumSecondsToLive = 10,
MaximumTicksToLive = 4
};
//Note the order of assigning the handlers. As this is the order they are executed.
ExampleTimer.Tick += Generic_Tick;
ExampleTimer.Tick += Work_Tick;
ExampleTimer.Interval = 1;
ExampleTimer.Start();
public struct CustomTimerStruct
{
public uint Counter;
public DateTime StartDateTime;
public uint MaximumSecondsToLive;
public uint MaximumTicksToLive;
}
void Generic_Tick(object sender, EventArgs e)
{
System.Windows.Forms.Timer thisTimer = sender as System.Windows.Forms.Timer;
CustomTimerStruct TimerInfo = (CustomTimerStruct)thisTimer.Tag;
TimerInfo.Counter++;
//Stop the timer based on its number of ticks
if (TimerInfo.Counter > TimerInfo.MaximumTicksToLive) thisTimer.Stop();
//Stops the timer based on the time its alive
if (DateTime.Now.Subtract(TimerInfo.StartDateTime).TotalSeconds > TimerInfo.MaximumSecondsToLive) thisTimer.Stop();
}
void Work_Tick(object sender, EventArgs e)
{
//Do work specifically for this timer
}
When initializing your timer set a tag value to 0 (zero).
tmrAutoStop.Tag = 0;
Then, with every tick add one...
tmrAutoStop.Tag = int.Parse(tmrAutoStop.Tag.ToString()) + 1;
and check if it reached your desired number:
if (int.Parse(tmrAutoStop.Tag.ToString()) >= 10)
{
//do timer cleanup
}
Use this same technique to alternate the timer associated event:
if (int.Parse(tmrAutoStop.Tag.ToString()) % 2 == 0)
{
//do something...
}
else
{
//do something else...
}
To check elapsed time (in seconds):
int m = int.Parse(tmrAutoStop.Tag.ToString()) * (1000 / tmrAutoStop.Interval);

Display a timer that loops every 15 seconds

I made this code, but there is a delay between the time loop showing on the screen and the exact elapsed time.
Timer t = new Timer();
int time = 15;
string timestr;
t.Interval = 1000;
t.Tick += new EventHandler(Time);
void Time(object sender, EventArgs e)
{
if (time == 0)
{ time = 15; }
if (time != 0)
{
time--;
timestr = time.ToString();
label.Text = timestr;
}
}
My guess is that you are off by one second since the timer won't fire its first event until that interval value is reached.
A quick fix would be to fire the event yourself when you start it:
t.Start();
Time(t, EventArgs.Empty);
I think you need to try this. Add the line Application.DoEvents() just before the end of Time function.
void Time(object sender, EventArgs e)
{
if (time == 0)
{ time = 15; }
if (time != 0)
{
time--;
timestr = time.ToString();
label.Text = timestr;
}
Application.DoEvents();
}

ProgressBar runs too fast than defined

my application runs files and every file has it's own running time.
this function get in millisecond the time that the progress time should run:
timerProgress = my timer
pbStatus = my progress bar
public void AnimateProgBar(int milliSeconds)
{
if (!timerProgress.Enabled && milliSeconds != 0)
{
pbStatus.Value = 0;;
timerProgress.Interval = milliSeconds / 100;
timerProgress.Enabled = true;
}
}
and this is my timer that fill the progress bar:
private void timerProgress_Tick(object sender, EventArgs e)
{
if (pbStatus.Value < 100)
{
pbStatus.Value += 1;
pbStatus.Refresh();
}
else
{
timerProgress.Enabled = false;
}
}
my problem is that progress bar runs too fast for example if AnimateProgBar get the value of 12000 (12 seconds) the progress bar runs only for 6-7 seconds.
It's fishy that your code doesn't work. I tried it a few times, and it missed with about 0.6 seconds each time; it seems like the timer is just imprecise.
What you could do is to take care of the time yourself instead of trusting a timer:
WithEvents Tmr As New Timer With {.Interval = 100}
Dim startTime As Date, AnimationTime%
Sub AnimateProgress(ms%)
If ms <= 0 Then Exit Sub
ProgressBar1.Value = 0
AnimationTime = ms
startTime = Now
Tmr.Start()
End Sub
Private Sub Tmr_Tick() Handles Tmr.Tick
ProgressBar1.Value = Math.Min((Now - startTime).TotalMilliseconds / AnimationTime, 1) * 100
If ProgressBar1.Value = 100 Then Tmr.Stop()
End Sub
EDIT - Response to the reply bellow:
Oh sorry, no it's vb.net. I know both the languages just as well, but I prefer vb, and tend to think that everypony else does so too.
Here's the c# version:
DateTime startTime; int animationTime;
void AnimateProgress(int ms) {
if (ms <= 0) return;
progressBar1.Value = 0;
animationTime = ms;
startTime = DateTime.Now;
Tmr.Start();
}
private void Tmr_Tick(object sender, EventArgs e) {
progressBar1.Value = (int)(Math.Min((DateTime.Now - startTime).TotalMilliseconds / animationTime, 1) * 100);
if (progressBar1.Value == 100) Tmr.Stop();
}
You can try with this sample, based on PerformStep method
var progressBar = new System.Windows.Forms.ProgressBar();
progressBar.Maximum = 100;
progressBar.Minimum = 0;
progressBar.Step = 10;
//begin loop
//Your treatment of step
progressBar.PerformStep();
//end loop
msdn link : http://msdn.microsoft.com/fr-fr/library/system.windows.forms.progressbar.performstep(v=vs.80).aspx
You have sample here
private void CopyWithProgress(string[] filenames)
{
// Display the ProgressBar control.
pBar1.Visible = true;
// Set Minimum to 1 to represent the first file being copied.
pBar1.Minimum = 1;
// Set Maximum to the total number of files to copy.
pBar1.Maximum = filenames.Length;
// Set the initial value of the ProgressBar.
pBar1.Value = 1;
// Set the Step property to a value of 1 to represent each file being copied.
pBar1.Step = 1;
// Loop through all files to copy.
for (int x = 1; x <= filenames.Length; x++)
{
// Copy the file and increment the ProgressBar if successful.
if(CopyFile(filenames[x-1]) == true)
{
// Perform the increment on the ProgressBar.
pBar1.PerformStep();
}
}
}
link : http://msdn.microsoft.com/fr-fr/library/system.windows.forms.progressbar.performstep(v=vs.80).aspx
I couldn't reproduce your issue. I just tested a new form, with a ProgressBar and a Timer as you detailed in your question, and merely added one button to start the test, and one label to show the elapsed time:
DateTime start;
private void button1_Click(object sender, EventArgs e)
{
start = DateTime.Now;
AnimateProgBar(12000);
}
private void timer1_Tick(object sender, EventArgs e)
{
label1.Text = DateTime.Now.Subtract(start).TotalSeconds.ToString();
//the rest of your code, starting with "if (pbStatus.Value < 100)"
I consistently got 12.6 seconds until the progressBar filled (and the timer stopped, freezing the label text)... Maybe part of your progressBar is hidden?
[Edit]
If you're curious about the 0.6 extra seconds that BlackCap also noticed, it's because you're setting the timer interval to 120 milliseconds, but timer events have a resolution of about 18 milliseconds, so it will actually fire at 126 instead of 120.

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