Timer Using Web Application?
Dec 23, 2011I'm trying to use a Timer in my web application, but cant seem to make it work. Here is my code:
VB Code:
Public Class WebForm1
Inherits System.Web.UI.Page
[code].....
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Create A Timer While The Application Is Running?
May 16, 2012I want to create a timer while the application is running. For example, the form has TextBox1 and Button1. When Button1 is clicked, the timer will be enabled and will print the current system time in TextBox1 every 10 seconds. The timer will be disabled when the Button1 is clicked again. How do I implement the timer and its events? An example with both Windows Forms and Silverlight would be great.
View 7 RepliesFocus Jumping With Timer In A WM6 Application
Nov 15, 2010I'm trying to make a WM6 version of this simple windows app, and I have some certain problems. Under a timer event I have several instances like this (don't ask why timer and why this way, it just works in my case):
Code:
If ent1.Focus = True Then
ent2.Text = Math.Round(((ent1.Text) * 3), 1)
End If
[Code].....
It didn't work under WM6 so I've changed it to ent1.Focus.
Anyhow, the problem is that under WM6 focus is jumping around with the timer, i.e. different textboxes become active every timer iteration making it impossible to work with the program.
How To Make Timer Application For Count Down
Jun 8, 2011I am making the simple timer module which will display time in count down format as if user want 1 hour 3 mins and 30 sec so it will count in revers. I have almost half code done but after trying the all tricks and logic I didn't got any thing the out put is not proper as which I want.
The code is as follows
Public Class Form1
Public hh As Integer
Public mm As Integer
Public ss As Integer
Public totalsec As Integer
[Code] .....
Threading.Timer Application Is Consuming More Than 50% Of CPU - Why
Mar 2, 2011I have written below console application in VB.net. My intention is to write an application that triggers every one minute and perform some task. But when I run this application it is consuming 50% of CPU.
[Code]...
Use Timer Control In Console Application?
Sep 29, 2010I am trying to use an timer control in my console application Friend WithEvents XTIMER As System.Windows.Forms.Timer I am getting its all the properties.I have set the interval to 15000 ms.but even if i am setting the enabled state of the timer control to be true,the tick event is not firing
View 4 RepliesWhy Will This Timer Not Start In A .net Service Application
Jun 11, 2009I have this code for a Windows service I am writing in .NET....However the TICK function never gets executed regardless of what interval I put in the tmrRun properties. What am I missing? I am sure its something stupid I am not seeing.
View 6 RepliesHave A Windows Service Application That Runs A Timer?
Jan 19, 2010I have a windows service application that runs a timer. When this timer ticks it starts another application that runs a process.The application is started but it does nothing. On the other hand if i run the application manually it works fine.
View 5 RepliesTimer Every Second Monitoring Windows Application Titles
Jul 1, 2011I have a VB.NET desktop application that I'm using to monitor events in another windows application running on my system.I need to respond to certain events in a matter of seconds.One of the events I'm monitoring instantly changes the window title of a child window within the main process (I'm not changing it, the application I'm monitoring causes the change in it's own child window title).I have a function that uses windows API's to iterate through the title text of all the process's child windows, and I'm checking for certain values in the titles.Is it a bad idea to be running this timer/title check once every second? Are there performance issues associated with running a timer in windows every second 24/7? Is it also bad for performance to be calling the API's which retrieve the titles of all the application's child windows? Could I eventually cause that application to crash by sending requests to it so often?
View 1 RepliesAdd A Timer To A Console Math Quiz Application In VB 2005
May 15, 2009I'm a newbie and trying to develop my first program. The program is a console math quiz application. I want to add a timer to the code that tells the user the the amount of time it took for them to complete the quiz. I have no clue as to how I need to implement this.
[Code]...
Application (.exe) Eraser / Blocker / Killer Using Timer Control
Oct 20, 2011my dream project is to create a vb.net program that will able to input applications and then run it and erase it after a given month/day/time.it will allow you to add applications that you can erase after a period of time or do u have applications that able you to input applications then block/erase in period of time?
View 3 RepliesImplementing Timer States(Available,Busy,Away Etc) In A Chat Application ?
Nov 30, 2010I am currently developing a chat application and am trying to include:
Various states, like MSN does, available, busy and away.If the user doesn't touch the keyboard for one minute, the state of the user isto be changed into Away.Or something similar to these.I also need the program to be able to play a sound while running.
VS 2010 Timer Interfers With Full Screen Application (Like VLC)?
Mar 21, 2012I have two timers in my application. One that updates some text label every 100 ms, and another one which makes the text scroll to the left. Both timers are working fine, however,if Timer2 is enabled i get some problems while playing fullscreen video in VLC. Usually the mouse dissapears when running full screen and leaving the mouse, but if my program is running (and therefore Timer2 is enabled) the mouse wont dissapear. If i go disable Timer2 theres no problems.. I just dont understand why it is only Timer2 that does this and why timer one doesn't affect VLC? Timer1 and Timer2's code is below
vb.net
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
[code]......
Calling .dll Method From Inside A Timer Won't Work(Console Application)?
Nov 26, 2009I have a .dll file (Interop.ACTMULTILib.dll) that I use to connect to a PLC. This .dll contains a sub called ReadDeviceBlock2(byval devicename as string, byval size as integer, byref data as short). When I call this method in my main it works fine, if I call it from another method that was called by main it works as well.However, it doesn't work when I call it from my Timer_Elapsed sub? I guess this has to do something with threads but I can't figure it out.
Module Main
Private Timer As New System.Timers.Timer
Private PLC As New ACTMULTILib.ActEasyIF
Private DataSet As new DataSet[code].....
VS 2010 Timer Application To Control A Greenhouse Misting System
Mar 3, 2012I`m fairly new to coding (2 weeks) and having some trouble with a timer application to control a greenhouse misting system. The problem arose after resolving the 65 second interval limitation for tmrPause, it appears the tmrPulse line is never reached as lblCycleStatus.Text doesnt display "Pulse" where it did before. I may have bitten off more than i can chew for a first project but i`d appreciate any pointers as to where i went wrong so i can learn from it.[code]
View 5 RepliesForms :: Chart (Series Colors, Graph Refresh On Timer, Etc) Application That Ties Into A SQL Database On The Back End
Dec 29, 2011I am working on an application that ties into a SQL database on the back end. Currently the main form contains a series of combo boxes (Graph type, data format, location, and customer), two date pickers, and a button to launch the selections in a new form. Everything works just fine except there are a couple of things I can't seem to accomplish.
Example Data:
[CODE]...........
Case Select (with commented out lines for variations attempted):
[CODE]..........
1) I would like to be able to use some sort of case statement to color the bars in my chart based on value. I have tried approaching this in a couple of different ways but neither of the options seem to work. First, I tried this (the If Not is used because depending on what values are passed to the stored procedure in SQL, different columns will be returned):
[CODE]..........
Only one series is created with this method, so I can see how/why a Select Case would set all bars the same color. I have also tried creating a series for each row in the returned dataset but it results in 22 bars of different colors, for each of the rows (484 bars):
[CODE]..........
So is there any way to modify the second set of code there to only select the value from the "Percent TMHB" cell that corresponds with Row(i), rather than ALL values from the "Percent TMHB" column for EACH Row(i)?
2) Since I am drawing/creating these graphs in a new window, is there any way to also create a new timer on the "newFrm" and have the tick refresh the data? I've struggled with this but I feel like it should be easy. Say someone chooses a "TMHB", "Percentage", "Chicago", "All" (Graph type, data format, location, customer) and launches the graph, which opens in a new window, then they want to do "TMHB", "Percentage", "LA", "All" and have both windows up, refreshing automatically throughout the day. Can I somehow store the SelectCommand.Parameters values in the new form/timer so that it will query the database again every 5 minutes?
Example code for the StoredProcedure and creating the new form:
If combo_GraphType.SelectedItem = "TMHB" Then
Dim newFrm As New Form
Dim newChart As New Chart
[CODE]..................
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?
Create An Array Of Timer - Raise The Tick Event For A Particular Timer?
Jan 11, 2011I want to create an array of timer in vb.net. My problem is that how will i raise the tick event for a particular timer, say mytimer(x).tick and inside the tick event there is also a button, say mybutton(x) which changes location every interval. for example:
public class blah
dim mybuttons(20) as button
dim mytimer(20) as timer
private sub form_load(....) handles me.load
for x as integer = 0 to 20
[Code]...
i dont know what to do next, all i want is to pass the button mybuttons(x) to mytimer(x) tick event, in which their index number are the same. i want to create one timer per button. how to do that? please help me and post example codes. i've researched the net but i cant understand passing variables, addhandlers, etc. i'm just new to programming object oriented.
VS 2010 Incorporate The Timer So Once A Page Loads The Timer Activates?
Jul 4, 2011How can I incorporate the timer so once a page loads the timer activates, waits a few seconds then I tell my program what to do next.I tried this code but it didnt work:
Timer1.Interval = 5000
Timer1.Enabled = True
Timer1.Start()
[code]....
Timer And 64bit Processor - Timer That Doesn't Work?
Sep 30, 2010Everything is nice and dandy on my pc, then I compile, move it to its final destination and I doesn't work! At first I thought it was a OS problem, but both machines has win7, I then thought it was a compilation problem, installed visual studio on the other pc, recompiled still with no luck, then it dawned on me, may it be a problem of 32bit vs 64bit?The piece of code is this:[code]....
By the way is not a problem of mouse_event, is the timer that doesn't work
Timer Control In VB - When I Click Outside Of The Form, The Timer Stops?
Mar 24, 2009I have a timer in vb.net and it's interval is 1000ms ,. i have placed in it's timer_tick event a code that will print screen the screen and save it to a database.The problem is when i click outside of the form, or loosing the focus of the mouse to the form containing that timer/printscreen, the timer stops. As a result the printscreen also stops.here are it's properties:
generate member = true
interval = 1000
modifiers = friend
.net - Systems.timer.timer Unwanted Multithreading?
Jul 14, 2011I recently switched my code from using the windows.forms.timer to the systems.timer.timer and it has resulted in a multithreading error. I'm using the timer to trigger just one event so multithreading shouldn't be an issue. To give more detail I have implemented the timer at follows:
At the top of the class I have: Private Shared timr1sec As System.Timers.Timer
When the program loads (Private Sub Test_load):
timr1sec = New System.Timers.Timer(1000)
AddHandler timr1sec.Elapsed, AddressOf OnTimedEvent
In OnTimedEvent I call several subroutines, and write some data to the screen using a ListView object.VisualExpress throws the multithreading error on the last line of this code, which is in OnTimedEvent
[Code]...
Timer In A Thread - Routine Which Is Controlled By A Timer
Aug 13, 2010I have a routine which is controlled by a timer. It works perfectly. The problem is that now, I need to run this routine several times, so I need to start differents threads so that my program doesn't get hung up. I've been trying to start my timer inside a thread, but it doesn't work!
View 18 RepliesVB6 Create Object Of Timer Instead Of Timer Control
Nov 6, 2009VB6 create object of timer instead of timer control
View 5 RepliesVS 2008 Timer - Possible To Use A Timer To Delay Code?
Apr 6, 2009Is it possible to use a timer to delay code? For example:
[code]...
Animation - Link The Timer To The"timer Start Button" And Make It Move?
Mar 15, 2009I already created a button "enjoy button" that i want to move in a form when the "timer start button" is clicked.how do link the timer to the"timer start button" and make it move? this is what i tried so far..then am blank first
Quote:
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Me.xTimer.Enabled = False
xTimer.Interval = 10[code].........
Update Control On Win Form: Windows-based-timer Vs Server-based-timer
Feb 24, 2011In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code: