Getting The Rapid Timer Control?
Jul 30, 2009
I have a timer that I've established that I have set to run at a 20ms interval.Within that timer code, I have some code that is performing a visual display, moving a graphic incrementally.This all works great on a nice fast machine, when I can be sure that the "work" is actually being completed before it's "called" again by the timer.It does not behave well on a slower machine, when I suspect that the timer is being called again before the work is being done from the previous call(s).
I've tried establishing a global boolean variable called "Timer1Active". I set this variable when I enter the code to TRUE, and to FALSE as I exit the procedure. I also check, using an IF statement if it is true at the beginning of the procedure, skipping all of the procedure if it's not yet been set back to false.This approach seems to stop the visual portion from happening altogether. I think, anyway. That or it's now way faster and I can't see it at all (but I doubt it).
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Mar 24, 2009
I 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
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Nov 6, 2009
VB6 create object of timer instead of timer control
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Feb 24, 2011
In 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:
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May 7, 2011
I set up a test harness by checking for and then deleting records added to the db in the previous testing session, and then I test my recording adding code by adding back the same records.Interestingly this code works fine when there is a break in the debugger, but fails with a "duplicate key" exception when I let it run with no breaks, which leads me to believe there is some kind of concurrency issue.The basic metacode is as follows:
DoTest()
dim j as datacontext
dim recs = from myrecs in j.mythings select myrecs where myrecs.key="key1" or
myrecs.key = "key2"
[code]....
I've confirmed that I'm properly deleted the previous added records, and this works fine as does adding the new records when I have a break in the code before I hit the add records step. but without the break, it throws duplicate key exceptions in the "addrecordestomytable" method suggesting that it hasn't grabbed the current version of the table when it creates the new data context in addrecordstomytable, even though the records should have already been deleted.I've tried refreshing the table, but this doesn't seem to work either.Note backing database is ms sql server 10?
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Apr 22, 2010
I am using an activeX control to read data from an external source. This data is processed in 5 second increments. Each piece of data is passed through an event. When the event triggers I call a "decision" procedure from the event to process the data and make decisions on what to do, i.e. call other procedures, store the data, etc... This works fine when I have a small number of samples (around 10), however, when the number of samples increases to say 100, that is I am recieving 100 pieces of data every 5 seconds, the "decision" procedure does not fully run. Is it possible that the event trigger is causing the code to exit the "decision" procedure prematurely? I know that the "Decision" procedure starts since I have written data from the beginning of the procedure but not the end of it. how to handle the rapid event triggers?
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Oct 4, 2011
I set up a test harness by checking for and then deleting records added to the db in the previous testing session, and then I test my recording adding code by adding back the same records.Interestingly this code works fine when there is a break in the debugger, but fails with a "duplicate key" exception when I let it run with no breaks, which leads me to believe there is some kind of concurrency issue
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Jul 9, 2011
The code I have is meant to be used during possible rapid mouse movement by the user. It is supposed to get the current location (works), move to specified location (works), mouse down(works), mouse up (works), then return the mouse to the old position. I added the delay because it seemed that it was having trouble registering the click if done too quickly. The problem I am having is that if the user is moving their mouse during the time the code is activated, their movement can throw the location of the mouse down or mouse up events off even with the added check routine I added.
'Get current mouse position
Dim MousePosX As Integer = Windows.Forms.Cursor.Position.X
Dim MousePosY As Integer = Windows.Forms.Cursor.Position.Y
Q = True
'Move mouse to Q Location and click
[Code] .....
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Dec 28, 2011
Im trying to debug a troublesome Project. I downloaded and installed the Symbols from MS, set my Project to use the Folder where I installed them, etc. When I start Debugging, I can see at the bottom of my IDE window that it is loading Symbols at a rapid clip, until it gets to It stops, and I have tried waiting 15 minutes to no avail.
The file exists - D:Symbols
asapi32.pdb90DF78A27042428D99A8021F064506472
asapi32.pdb - 1.40 MB (1,469,440 bytes) - Created Wednesday, November 24, 2010, 12:25:44 PM
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Apr 29, 2010
I just made a rapid file transfer form for my photos.In which I drag photos into a listview with my destination folder set.I assign each individual file transfer to a new thread. This works very fast as compared to the standard drag n' drop.
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Apr 1, 2010
I have created a game and I want to add a timer to update a ProgressBar after 30 seconds. I have tried multiple ways t get that timer (Timer1) to work. here's the basic code I used: 'for some reason this code does not work,even though everything is defined. [Code]
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Jun 25, 2010
I want to make an application for game zone where a user logs in using user name and password once the user login timer is set to start and as he logs out the timer is stooped.
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Feb 2, 2011
I am writing an application that has 10 form. I would like to be able to use a timer control to display one form for 2 seconds and then display another form until the 10 forms are all displayed then loop again. I have been trying to get this to work but I failed.
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Aug 30, 2009
do wpf forms have a timer control?
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Jan 7, 2009
Can u explain that how the timer control works..
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Mar 6, 2010
i want after short interval there should a messagebox popup..please check my code as soon as i click on button the progress bar doesn't loads it straight way jumps on the message box.[code]
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Aug 16, 2010
I am making a wpf application and cant find the timer control.
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Feb 3, 2010
I am relatively new to programming and have managed so far with google and a lot of patience! I am having a problem naming timer contols at runtime. This is what I am trying to achieve.
1. I connect to my dataset and to my first record
2. I create a loop for the recordset
3. I create various objects on a form and name them using the info in the dataset
I also need to create timers and name them using the first field of my dataset. It needs to be dynamic as its database driven. There could be as many as 100 timers at any one point.
[Code]...
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Jun 28, 2011
Private Sub TimerSaveonemessage_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TimerSaveonemessage.Tick
Dim Checkifsended As String = ""
If Checkifsended <> FixNummber(MessageToTextBox.Text) Then
[code]....
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Nov 3, 2011
I am using Timer control as a stopwatch to populate couple of Label controls text field. I am listing the code below which is not updating the Label fields. I have removed the code related to buttons and other controls. Why is the Timer1_Tick not being invoked? The code is compiling clean and when I walked thru the debugger, my Start_Timer() and Stop_Timer() subroutines are working. However, nothing is happening in the Timer1_Tick() subroutine. I would like someone
Dim MyTime As New DateTime
Dim MyCondition As Integer = 0
[code].....
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Apr 8, 2009
tring to put an event time in the tool strip. Timer alone would stop after the event began. Thought the Background Worker would work, but it never went further the DoWork Method.
[Code]...
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Mar 11, 2010
i want to control pc parallel port using vb.net/vb6 , i need timer coding .
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Sep 29, 2010
I 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
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Jun 30, 2011
Whatever project I'm making, I always encounter a problem with a Windows Forms Timer control, I guess I just make a little mistake somewhere... So I thought I'd post it here and hopefully someone here can explain what I'm doing wrong.
[Code]....
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Aug 11, 2009
how to use the timer to control the blinking? Cuz i tried to stop one timer, it did stop this timer but if i didnt stop the timer 1, both timer 1 and timer 2 will begin although the data is in different entity. By right if the alarm comes in from block 2, only block 2 button will blink, like wise if the alarm comes in from block 1, only block 1 button will blink
the below is my code:
Imports System.Data.SqlClient
Imports System.data
Imports System.Drawing.Image
[Code]....
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Feb 27, 2009
I have added a timer control to a VB.NET windows form to have a message flash on and off between ticks. When I load the form I have the timer disabled. When i click on a command button, I set Timer1.Enabled to True so that the timer can begin flashing the message. The timer does not flash the message. I added a MsgBox function after where I turn on the timer. When the message box is displayed and I click OK, then the timer starts flashing the message. I turn the timer off later and that seems to work fine. I have tried the Timer1.Start() method but that does not work. Any thoughts on why the message box allows it to run but the form does not?
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Aug 17, 2010
how to tell a program to wait or pause without using a timer control.
I did a bit of Lua scripting a few years back and the function was: Wait(5) or however long you needed the program to pause.
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Apr 15, 2010
I have successfully set up a timer in visual basic, see the code below. My timer uses case statements and at specific case/time it calls a function, 'ShuttleA'. 'ShuttleA' function, is a function that 'getskeystate', which inturn from the user interface tallies a response in a text box. My problem is that the program runs fine when calling the function at eg; at 10 seconds, case 10. But I want to be able to call the function e.g., at 8 seconds to 11 seconds. Or create a tolerance of e.g., 1 second either side of e.g., 10.
PrivateSub Timer1_Tick(ByVal sender As System.Object,ByVal eAs System.EventArgs)Handles Timer1.Tick
Dim secondsAsInteger
seconds += 1
Label1.Text = seconds
SelectCase seconds
[Code] .....
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Nov 22, 2010
I need to have a specific process(method) run once a day at a given time and was wondering if this can be done using the timer control.
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Nov 13, 2009
I have dragged and droped a timer control "tmrGetMappingXML" from the Common Controls Tab in Tool Box. The issue that I am mentioning also appears for the Timer Control present in the Components Tab in tool box.
In the form Load I have written:
HTML
tmrGetMappingXML.Interval = 3600 '1 Hour = 3600 Seconds
tmrGetMappingXML.Enabled = True
tmrGetMappingXML.Start()
The timer interval is also set in the design time to 3600 seconds. But the Tick event of the timer fires continuously every second.
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