stopwatch

Creating a GUI-based Chronometer (or Stopwatch)

断了今生、忘了曾经 提交于 2019-12-02 08:29:08
What I took some time to work on is a program showing time elapsed, or time remaining, from where the user clicks the start button, much like a stopwatch or a chronometer which measures time until you stop and reset. Other examples of measuring time elapsed are those lap times in racing games and time limits, with milliseconds, in other games. I'm running into some trouble, though, because my own stopwatch is not running at the same rate as actual time. It takes longer than one second for my timer to run one second down or up. The code is right here: (the GUI works perfectly; I'm more

Wiring Controls in Visual Basic, Controlling the Controls

ε祈祈猫儿з 提交于 2019-12-02 08:08:40
问题 I'm in the middle of using Visual Basic (Visual Studio 2010) to create dynamically created controls. Essentially what I'm doing is creating a label, a textbox, a label (which will act as a stopwatch), and a button (to control said stopwatch). Each set of controls will be arranged (and named) like this in a row: [LABEL] [TEXTBOX] [TIMER] [BUTTON] Labelx ParticipantNamex RingTimerx ControlButtonx So for a given row, I will be look like this: [LABEL] [TEXTBOX] [TIMER] [BUTTON] Label1

System.currentTimeMillis() work wrong

元气小坏坏 提交于 2019-12-02 06:56:03
问题 I need stopWatch and I used http://www.goldb.org/stopwatchjava.html It did not work well so I tried write out the value every 1000ms: stopWatch.start(); HandlerScrollBar.postDelayed(TtScroll, 1000); private Runnable TtScroll = new Runnable() { public void run() { long time = stopWatch.getElapsedTime(); HandlerScrollBar.postDelayed(TtScroll,(long) 1000); Log.d(TAG, Long.toString(time)); } }; I can see value of time every second in CatLog and this is result: Real time is max +5ms but in Column

Wiring Controls in Visual Basic, Controlling the Controls

孤街醉人 提交于 2019-12-02 06:51:23
I'm in the middle of using Visual Basic (Visual Studio 2010) to create dynamically created controls. Essentially what I'm doing is creating a label, a textbox, a label (which will act as a stopwatch), and a button (to control said stopwatch). Each set of controls will be arranged (and named) like this in a row: [LABEL] [TEXTBOX] [TIMER] [BUTTON] Labelx ParticipantNamex RingTimerx ControlButtonx So for a given row, I will be look like this: [LABEL] [TEXTBOX] [TIMER] [BUTTON] Label1 ParticipantName1 RingTimer1 ControlButton1 I've gotten the bit about creating the elements dynamically as well as

System.currentTimeMillis() work wrong

独自空忆成欢 提交于 2019-12-02 06:23:40
I need stopWatch and I used http://www.goldb.org/stopwatchjava.html It did not work well so I tried write out the value every 1000ms: stopWatch.start(); HandlerScrollBar.postDelayed(TtScroll, 1000); private Runnable TtScroll = new Runnable() { public void run() { long time = stopWatch.getElapsedTime(); HandlerScrollBar.postDelayed(TtScroll,(long) 1000); Log.d(TAG, Long.toString(time)); } }; I can see value of time every second in CatLog and this is result: Real time is max +5ms but in Column it is at least +3 seconds! How is it possible? It is the same with new Date().getTime(). Is there some

C# Stopwatch on-the-fly update

不羁的心 提交于 2019-12-02 03:28:18
(My first question here!) Hi, I am kind of beginner in c#. I tried to build a simple timer (in Windows.Forms). I made a label which indicates the time, and used the StopWatch class (from system.diagnostics). The trigger event for starting / stopping the stopwatch is the spacebar KeyDown event. After the second tap the stopwatch stops and Label.text is assigned to the Stopwatch.Elapsed value. I want to continuously update the label, but I don't know how. If I make while(StopWatchName.IsRunning) in the event itself, the event will indefinitely continue and won't respond for the second tap.

Can I use a timer to update a label every x milliseconds

£可爱£侵袭症+ 提交于 2019-12-02 01:00:16
问题 This is my code: Stopwatch timer = new Stopwatch(); timer.Start(); while (timer.ElapsedMilliseconds < 3000) { label1.Text = Convert.ToString( timer.ElapsedMilliseconds ); } timer.Stop(); My intetion was to update the label's text in real time, so if timer.ElapsedMilliseconds == 1350 , then label1.Text = 1350 . How can I do this? Thanks in advance! 回答1: You cannot update the UI in a tight loop like that, because while the UI thread is running that code, it isn't responding to paint events .

How do I display a digital timer (StopWatch) in datagridview column dynamically c#?

本秂侑毒 提交于 2019-12-02 00:26:34
I have datagridview whose datasource is datatable. I have two columns in datagridview: NAME, IN TIME After the datagridview is loaded, I want to add a new column called DURATION which is a timer column i.e. based on the IN TIME, DURATION column should display a stopwatch with the timespan interval of CURRENT TIME-IN TIME. How do I make the DURATION column stopwatch to continue the timer for every seconds like digital clock? You can add a string column to DataTable and use it as duration column. Then you can subscribe to Tick event of a timer which you set it's interval to 1000 and show the

Can I use a timer to update a label every x milliseconds

烈酒焚心 提交于 2019-12-01 22:38:40
This is my code: Stopwatch timer = new Stopwatch(); timer.Start(); while (timer.ElapsedMilliseconds < 3000) { label1.Text = Convert.ToString( timer.ElapsedMilliseconds ); } timer.Stop(); My intetion was to update the label's text in real time, so if timer.ElapsedMilliseconds == 1350 , then label1.Text = 1350 . How can I do this? Thanks in advance! You cannot update the UI in a tight loop like that, because while the UI thread is running that code, it isn't responding to paint events . You can do nasty things like "DoEvents()", but please don't... it would be better to just have a Timer and

Start a stopwatch from specified time

|▌冷眼眸甩不掉的悲伤 提交于 2019-12-01 18:12:13
Im trying to start a stopwatch from a given time (decimal value pulled from a database). However, because the Stopwatch.Elapsed.Add returns a new timespan rather than modify the stopwatch, I can't work out the best way forward. var offsetTimeStamp = new System.TimeSpan(0,0,0).Add(TimeSpan.FromSeconds((double)jd.ActualTime)); Stopwatch.Elapsed.Add(offsetTimeStamp); Stopwatch.Start(); Any ideas how I can do this? Cheers The normal StopWatch does not support initialization with an offset timespan and TimeSpan is a struct , therefore Elapsed is immutable. You could write a wrapper around StopWatch