timer

问题 I have tried asking this question several times but I haven't been able to explain what is going on. Maybe some screen shots may help. I can only post one because I don't have enough reputation points yet. screenshot after tableview scroll You can see that one of the timers (2) has been reset. I have tried to fix this multiple ways without success. Here is the code that puts the timers into the tableview cells: -(void) calculateTimer:(NSTimer *)theTimer { self.timerItem = [theTimer userInfo];

问题 Hy! I am working on java app that has 2 forms. In first form my user order meals and I store his order in my database on localhost server. On second form that orders in JTable by using simple sql query. Now I want to make that my JTable is refreshed every 2 seconds, so I can automatically see when user order meal. I tried with Timers, but I am total newbie in Java programming so I would appreciate help... Here is my method that refreshes table but I just need a bit help about Timer: private

问题 I'm coding a clock app using DispatchTimer in c#, but for some reasons my clock seems to skip 1 second every now and then. eg. 52s -> 54s skipping 53s. Seems to me that the timer does not execute exactly every second. DispatcherTimer timer = new DispatcherTimer(); timer.Tick += DispatcherTimerEventHandler; timer.Interval = new TimeSpan(0, 0, 0, 0, 1000); or timer.Interval = new TimeSpan(0, 0, 0, 1); Both also don't work. 回答1: Basically your approach is wrong. Don't add "one second" to a

问题 I am experiencing an interesting issue. We are running a website using masterpage and in one of the pages, I need to create an update panel that will display group SSID on completion. So, in one of the content placesholders, I put this in: <asp:ScriptManager ID="scManagerConfirm" runat="server" /> <asp:Timer ID="tmrStatus" OnTick="tmrStatus_Tick" Enabled="false" runat="server" Interval="5000" /> <asp:UpdatePanel ID="upnlStatus" runat="server" UpdateMode="Conditional"> <Triggers> <asp

问题 Is there way to fire the System.Timers.Timer.Elapsed only after the previous Elapsed event has finished? 回答1: A common pattern to avoid this. Start the timer Stop it in the beginning of the handler Start it again at the end of the handler This guarantees you can only ever be processing the handler once. 回答2: The Timer.Interval property may be helpful for you. 来源： https://stackoverflow.com/questions/5683073/only-fire-timer-event-after-previous-elapsed-event-has-finished-c

问题 have a question about CountDownTimer. I have to make an application that allows the user to increment the time time by +1, for every click of the button. Then after the button stops being clicked it waits for three seconds, then starts to countdown. I pasted my code below. My Issue is: I can't seem to get the Incrementing of the number working correctly, however it seems that after I stop Incrementing the number (onStop()) it directly goes to (onFinish()). Instead of going to the OnTick() and

问题 I had created an application that captures the screenshot of desktop screen. It works very well with button I have used in form. But now I want to make that thing works automatically using timers but whenever I try to run program NullReferenceException occur can any one tell me whats going wrong here. TimerCapture interval=5 TimerSave interval=6 Here is the code can tell you the scenario: Public Class Form1 Private Sub timerCapture_Tick(ByVal sender As System.Object, ByVal e As System

问题 I had created an application that captures the screenshot of desktop screen. It works very well with button I have used in form. But now I want to make that thing works automatically using timers but whenever I try to run program NullReferenceException occur can any one tell me whats going wrong here. TimerCapture interval=5 TimerSave interval=6 Here is the code can tell you the scenario: Public Class Form1 Private Sub timerCapture_Tick(ByVal sender As System.Object, ByVal e As System

问题 If I want to run a series of Web service calls every hour. How can I do that from my Web Server? I'm guessing there is a timer which needs to be deployed somewhere so it counts down and when the time is up, it would consume those Web service again and retrieve the returned XML data to be stored in database. Then the timer resets again. 回答1: If you want to do this from within an ASP.NET web application, check out the Quartz.NET Job Scheduler, it's perfect for this sort of thing. Otherwise you

问题 I'm writing a simple program, which checks if elapsed time is more than 1 seconds. I take start time with a clock_gettime(), then I call sleep(5), take new time and I check if the difference is bigger than 1; I sleep 5 seconds, then it should be greater than 5, but my program prints a strange result. this is the code: #include <stdio.h> #include <stdlib.h> #include <time.h> #include <unistd.h> int main() { struct timespec tv1,tv3,expected; struct timespec nano1; tv1.tv_nsec = 0; tv3.tv_nsec =