Restart Bw After Timer Elapsed?
Apr 20, 2011Is this the way to restart bw after timer has counted down?
Timer1.Interval = 30000 '30sec
Dim timercountdown As Double = Timer1.Interval / 1000
ToolStripStatusLabel2.Text = Nothing[code]....
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How To Add Elapsed Event To Timer In VB 2005
Jun 14, 2012I'm a starter in VB I just need to Know how to add elapsed event to timer in VB 2005 The timer has only Tick event
( if that not in vb 2005 what version of vb that supports the elapsed event )
Mutltithreading - Timer To Calculate The Elapsed Time
Feb 23, 2009Im using the express edition of VB.Net to do my project. I have several threads in my program which run fine. However, im stuck at this problem. I have a button in my form, which if I click I will call ThreadA (works fine), If i keep it pressed for more than 2 sec i need to call ThreadB (doesnt work), and if the time is more than 2 min, i need to stop and send a msg to the user. I have tried the timer to calculate the elapsed time, so the tick function would call the thread. BUT this doesnt work... Im not sure what do to.
View 2 RepliesIndex System.timers.timer For When Time Has Elapsed?
Mar 8, 2011I'm creating a multi-threaded application (although it is not at the moment) which will be connecting to a large number of sockets. I've noticed when a connection cannot be made the connect timeout is rather large, so I am trying to make my own. Here is what I have come up with...
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
CreateSockets(2)
AssignSockets(0, "192.168.31.2", 80, False, False) 'shouldn't connect
AssignSockets(1, "192.168.1.1", 80, False, False) 'should connect
[code]....
Looking at the timeoutOccured() sub, you can see I'm unsure of how to specify which index to set. Efficiency is important since this will be housing a lot of connections at once. Something else that just came to mind, would .theTimer.Stop reset the tick value on the timer?
VS 2010 List (Of Timer) With Each .Elapsed Being Set To The Same AddressOf MyTimerEvent
Sep 4, 2011I effectively have a List (Of Timer) with each .Elapsed being set to the same AddressOf MyTimerEvent
When MyTimerEvent is called, how do I know which particular timer from the list triggered it?
IDE :: System.Timers.Timer Working When Exception Occurs In Elapsed Event Handler
Mar 24, 2011I am using timers in a windows service and facing problem that anytime some exception happens ( say i unplug LAN wire from my computer ) service stops running, What i am expecting is that service should keep on running as i am catching generic exception which should catch the exception on one tick event and again work (next tick)when i plug in LAN wire (i am plugging/un plugging ) LAN wire as this service is reading database from LAN so i want to replicate a failover scneario)
View 3 Replies[2008] Restart Timer From Saved Value
Feb 21, 2009Below is my timer code, click the buttons it start and stops.
What I want to do is retreive a elapsed time from a db say 01:40:00
and make the timer start from that value as opposed to starting over again if the application crahes. how to set the saved time and start from that point.
Public Class Form1
Private stopwatch As New Stopwatch
Private Sub counter_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles counter.Tick
[Code]....
Calculate Elapsed Time?
Aug 12, 2010example
textbox1.text has a value of 08:00
textbox2.text has a value of 16:00
[code].....
Calculate Cost From Elapsed Time?
May 27, 2010I am trying to calculate a total cost from an elapsed time. Dependant on how long the time is, this will calculate the total cost. It has to be 3 to every hour. The elapsed time is displayed in label6 in "hh:MM:ss" format and the total cost needs to be displayed in label8.
View 4 RepliesIDE :: How To Make Stopwatch With Elapsed Times
Oct 2, 2009I have VS 2008 and wow is it different from the old VB I used about 10 yrs ago! What I am trying to learn is how to create an ap that has a window that displays elapsed time like a stopwatch. Then I would like to be able to click a button to pause that time and start another timer, and then have yet another button to reset all. I have the form designed using a RichTextBox but am not sure that is the best way to display the times.
View 1 RepliesStart And Display Time Elapsed?
Feb 6, 2009When I click a start button I want to start and display the time elapsed if HH:mm:ss. Best way to tackle this?
View 1 RepliesCalculating Elapsed Time Based Upon Two Values
Jun 26, 2005I have one text box that contains a value for the "Start Time" and another text box that contains a value for the "End Time."Both of the values are expressed in a format for military time (i.e. 1200, 1300, 1430, etc.).When the "End Time" text box loses focus, I would like the "Elasped Time" (expressed in minutes) to appear in a third text box.Seems easy enough...right?Well the problem I'm having is since the first two numbers in military time are base 24 and the last two numbers are base 60, a standard calculation subtracting the "End Time" from the "Start Time" does not yield an accurate result.
View 3 RepliesGet A Formula To Find How Many Minutes Have Elapsed Since A Given Date At 7:00 AM?
Aug 6, 2009I need a formula to find how many minutes have elapsed since a given date at 7:00 AM. So as of this posting it would be Now()-8/6/2009 07:00 AM.
View 3 RepliesGet The Elapsed Minutes And Seconds Which Will Then Be Displayed To User
Aug 30, 2009I am using a stop watch to get the elapsed minutes and seconds which will then be displayed to user. How to I go about getting the elapsed time in the following format: 00:00
View 5 RepliesVB Function To Convert Decimal To Elapsed Time?
Jun 21, 2009display a Decimal (or double) to elapsed time [h]:mm:ss (hours:minutes:seconds)using vb.net?
example:
if you were to type "1.34666666666667" into a cell in Excel then choose Custom Format [h]:mm:ss The result is an elapsed time of "32:19:12". Using the OADate function only runs on a 24 hour clock so this does not work for longer durations unfortunately...
VS 2008 Finding The Elapsed Time Between 2 Times
Oct 21, 2010Bit stuck on this one, have seen alot about how to do it just cant seem to get it right. I want to have 2 text boxes with times in them.. at the moment i have them on click events then it just runs a Now for the time and fills the boxes from the system time. But then i want the 3rd box to find the elapsed time from the 2 times in the previous boxes but i just cant seem to figure it out
[Code]...
VS 2008 Finding The Elapsed Time Between 2 Times?
Feb 19, 2010Bit stuck on this one, have seen alot about how to do it just cant seem to get it right.I want to have 2 text boxes with times in them.. at the moment i have them on click events then it just runs a Now for the time and fills the boxes from the system time.But then i want the 3rd box to find the elapsed time from the 2 times in the previous boxes but i just cant seem to figure it out
View 1 Replies.net - Elapsed Time With Environment.TickCount() - Avoiding The Wrap
Apr 16, 2009Does the absolute value protect the following code from the Environment.TickCount wrap?
[code...]
C# - Update A TextBlock With Elapsed Time Causing An UnauthorizedAccessException
Jul 22, 2010I have a very simple StopWatch application in Silverlight. I have the following private properties in my MainPage class: _StopPressed (bool), _TimeStart, _Elapsed (string). I also have a "Start" and "Stop" button. The "Start" button calls a method called UpdateTime that constantly updates _ElapsedTime until _StopPressed is true. When I originally wrote it, UpdateTime would block the UI so I couldn't press the Stop button, so I updated my code to use System.Threading.ThreadPool.QueueUserWorkItem with my UpdateTime method so that it updates _Elapsed on a background thread. That works great at updating the value.However, if I try to set the .Text value of my TextBlock from within UpdateTime(), I get an UnauthorizedAccessException that has to do with one thread accessing the data in another thread.What do I need to do to avoid getting this exception and appropriately update the UI without blocking it?
View 1 RepliesCounting Elapsed Seconds Since The User Start Being Active?
Jan 29, 2010I am trying to write a program to count the total seconds while the user is active (moving his mouse".. I have the following code
' Get the mouse's current position and see if it has moved since last time. private Sub mrCheckMouse_Tick(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles tmrCheckMouse.Tick Static done_before As Boolean Static last_point As POINTAPI Dim cur_point As POINTAPI
' If we have done this before, compare the ' current mouse position to the previous one.
[Code]...
Display Elapsed Time - Generating Numbers Between 1 And X Randomly
Jan 15, 2010How long it would take to generate all of the numbers between 1 and X randomly.
X=1,000,000 took 6 seconds, and for 10,000,000 took over a minute.
Does that sound reasonable?
Experiment
stopwatch start
count = 0
do while count < x
select a random number between 1 and X inclusive
have i selected this number before?
no-add 1 to count
yes -
loop
stopwatch stop
display elapsed time
I made the Do Loop UI un-friendly and ran this from the IDE using CTRL-F5. My PC is 1.8Ghz and has 2GB of memory. I am using VB 2008, .Net 3.5 SP1.
Looking for work - Zip 65101 [URL]
Elapsed Prior To Completion Of The Operation Or The Server Is Not Responding?
Apr 17, 2012I have used the following query for my task and it returns the table..
objSQLCon.Open()
Dim da As SqlDataAdapter= New SqlDataAdapter(strSqlQuery, objSQLCon)
da.Fill(dt)
objSQLCon.Close()
[Code]...
But the same query some times not working and I got "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding" sqlexecption error. I have searched and referred lot of links (cmd.CommandTimeout= 0) and I did not seen any usefull info for my case..
Way To Make Both Threads Continuously Fire Its Elapsed Event?
Feb 2, 2010I'm using 2 System.Timers, which spawns a worker process during its elapsed event. If 1 of the events is busy doing something, the other thread elapsed event doesnt fire until the 1st thread has completed.Is there any way I can make both threads continuously fire its elapsed event??
View 3 RepliesKnow The Time Elapsed During Copy Paste Operation And Then Show It To The User?
Dec 28, 2010I need to know the time elapsed during this copy paste operation and then show it to the user
[Code]...
MySQL - Timeout Period Elapsed Prior To Completion Of Operation
Jan 17, 2012I am getting the following error:
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding works fine with the other 400+ updates before this one. There are only 5k records right now, and update string works fine from myphpadmin.
mysqlstr2 = "update " & turncolor & piececount & " set status1 = '1' where layoutstring = '" & layoutstring & "' limit 1"
' mysqlstr2 value at error = "update black32 set status1 = '1' where layoutstring = 'rnbqkbnrppppppp................p.....N..........PPPPPPPPRNBQKB.R' limit 1"
Dim command3 As New MySql.Data.MySqlClient.MySqlCommand(mysqlstr2, cn2)
Dim rowsaffected As Integer = 0
rowsaffected = command3.ExecuteNonQuery
Extend My Interval Timer Timer To Include Hours In Addition To Minutes And Seconds?
Aug 2, 2010What I need to do to make this code work for hours as well?[code]...
View 6 Replies.net - Accurate Windows Timer - System.Timers.Timer() Is Limited To 15 Msec
Jan 15, 2009I need an accurate timer to interface a Windows application to a piece of lab equipment.I used System.Timers.Timer() to create a timer that ticks every 10 msec, but this clock runs slow. For example 1000 ticks with an interval of 10 msec should take 10 wall-clock seconds, but it actually takes more like 20 wall-clock sec (on my PC). I am guessing this is because System.Timers.Timer() is an interval timer that is reset every time it elapses. Since it will always take some time between when the timer elapses and when it is reset (to another 10msec) the clock will run slow. This probably fine if the interval is large (seconds or minutes) but unacceptable for very short intervals.Is there a function on Windows that will trigger a procedure every time the system clock crosses a 10 msec (or whatever) boundary?
UPDATE: System.Timers.Timer() is extremely inaccurate for small intervals.I wrote a simple program that counted 10 seconds several ways:
Interval=1, Count=10000, Run time = 160 sec, msec per interval=16
Interval=10, Count=1000, Run time = 16 sec, msec per interval=15
Interval=100, Count=100, Run time = 11 sec, msec per interval=110
Interval=1000, Count=10, Run time = 10 sec, msec per interval=1000
It seems like System.Timers.Timer() cannot tick faster that about 15 msec, regardless of the interval setting.Note that none of these tests seemed to use any measurable CPU time, so the limit is not the CPU, just a .net limitation (bug?)For now I think I can live with an inaccurate timer that triggers a routine every 15 msec or so and the routine gets an accurate system time. Kinda strange, but...I also found a shareware product ZylTimer.NET that claims to be a much more accurate .net timer (resolution of 1-2 msec). This may be what I need. If there is one product there are likely others.
Asp.net - Local Static Variables In Timer.Tick Event (Stopping A Timer)
Jul 9, 2009I have a timer on a page in ASP.NET.
After a certain period of time elapses, I want to disable the timer.
I want to put a static variable in the timers tick event that will track how many seconds have elapsed.
My question is, will this work?
If user X and Y are viewing the page will they both have separate local static variables?
What is the best method of shutting down an ASP.NET timer after a certain elapsed time?
Synchronize The Timer Event So That The Timer Executes From The Background Worker Thread?
Apr 23, 2009I have a windows application that need to process som quite time consuming jobs. In my first try i did all processing under
the form thread. The result was bad response and update of the form due to the heavy jobs.To get around the problem with bad response from the form i created a new class "processing" where i put all the data processing. Then i instanciated a background worker where i in the "doWork" sub created a new instance of "processing".The "processing" class creates a timer from system.timer, and the timer drives the processing.On the Timer event Elapsed the timer starts a new thread from the thread pool.
My problem is now when i want to asynchronously close the background worker (with the corresponding function call what ever it is called ...) there is still a timer thread out there that causes exceptions for me.
1. How can i close my background worker and at the same time have the timer to be stopped?
2. Is there a way to synchronize the timer event so that the timer executes from the background worker thread?
3. Is there a better approach for me to adapt?
Capture An On/off Signal From A Relay And Count The Seconds Of Elapsed Time Between The Cycles On A Com Port?
Dec 27, 2011how to capture an on/off signal from a relay and count the seconds of elapsed time between the cycles on a com port? Also, which pins on the com port should be used for this?
View 12 Replies