.net - Display Messages According Timer Tick?
Feb 1, 2011Suppose I have meeting 31/1/2011 9.30 and when current time becomes 31/1/2011 9.30 it displays a message: "You have a meeting". How can I do this with VB.NET?
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Timer Tick Event And Serial Port / Read And Display Live Data?
Jun 21, 2009[code]...
I have a quick question regarding the serial port and timer tick event. Basically i have a micro processor connected to the PC via the serial port. With a baurd rate of 38400 set.When the PC sends the micro ":K + VBCRLF" the micro response with a string of information (ASCII encoded) and delimited with a "," and at the end of the transmission a cartridge return line feed is added.Example of sent string:
"12,1134,123,545,76,6868,34,232,1,2,3,6,7,8" These numbers are then split using the VB mystring.split(",") function into an array of strings, then the numbers are converted using ctype. After which my UI is then updated.I have Witten the code in a tick timer event using a timer count of 300ms. Although the program runs and the UI is updated i end it with lots of exception errors. I think allot of this is down to the serial port either timing out or not reading complete string.Or possibly the timer has not executed all the code before another tick event happens Even after adding a few try catch statements i am still having problems. Can anybody suggest a better way of doing it?I was thinking of using a do while loop and at the end a sleep function instead of the timer tick event.I need the speed as i am trying to read and display live data.
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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?
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.
Lower Tick In A Timer
Nov 9, 2009Is it possible to have smaller intervall than 1 in a timer?
View 7 RepliesChange The Tick Event Of Timer
Feb 11, 2012i want to execute different subs at each tick , is that possible ?
View 1 RepliesCreating New Picturebox With Timer Tick
Nov 20, 2009I am creating a game.With each timer tick a new picture box is generated and displayed. This works.[code]Now with a different timer I would like to move each of these generated picture boxes down 5 pixels with each timer tick.I cannot access the pctAlien variable outside of the statement it is declared.Is this the best way of generating the pictureboxes?
View 2 RepliesEvent Is Not Firing From Timer Tick
Feb 10, 2011I used a timer in my user control now when Timer_Tick event is fired I want to raise an event like Ticked. I created:
public delegate sub myDel()
public event myevnt as myDel
in Timer.Tick
I used raiseEvent myevnt. I also raised the event from a button click. This event is handled in a windows form where the control is used, My problem is event is firing when the button is clicked but not firing from the timer.tick. Is there any problem from Timer.Tick.
How To Timer Tick Every Time Enabled
Feb 3, 2009how to restart timer when is end? my timer code is:[code]
View 1 RepliesChanging Visibility Of Picturebox With Timer Tick?
Jun 10, 2012I have a timer that on tick checks to see the value of a an element in an array using a counter on another form as well. The picture boxes are initially set to false for visible and they should become true when the timer ticks and the element is equal to 1. I know that the pictureboxes have a valid picture in them because if I initialize them as TRUE first, it shows up properly. I also know that I am entering the IF statement because I can put a simple MsgBox with any string in the IF statement and it will display when the requirements are set. But yet the pictureboxes still do not change.
Public Sub test_timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles test_timer1.Tick
If tron.left_arm_full(tron.left_all_on_counter) = 1 Then
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Create A Timer That Will Activate A Tick Event?
Jul 11, 2011I am attempting to create a timer that will activate a tick event every 1 second until stopped by an "If" statement. The tick event should then drive a clock measuring time in units of hours, minutes and seconds. The if statements handle the time readout, timer stop and activate another form after a set number of hours have elapsed. I have tried several different methods and while my application is running, it does not add increments to the integers representing the time units, refresh the displayed time units, or perform any of the timer related functions. I assume the cause is that I just don't know as much as I think I do (which isn't much)
Here is the applicable code:
Imports Microsoft.VisualBasic.ApplicationServices
Imports System.IO
Public Class SessionManager
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Interface And Graphics :: Delay In Timer Tick?
Dec 2, 2008I am running an application to control at 1, 10 and 100 Hz to compare their response for a control systems class. I have a timer that reads data from hardware, a timer that updates the screen and does the control, and a timer that writes data to a file. I've been having problems with the speed of the write timer, so I created a buffer.It takes 0 ms to load the buffer, and the buffer is written to file using a synchronized streamwriter and a thread every 100 iterations. It also flips back and forth between two buffers so there are no read/write conflicts.If I try to run at 10 Hz, the timer executes on average every 109 ms. If I try to run at 100 Hz, the timer executes on average ever 15-16 ms.
View 2 RepliesModify A Queue Within The Tick Event Of A Timer?
Apr 8, 2010I an trying to modify a queue within the tick event of a timer. Is this even possible? A sample follows:
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim NewQueue As New Queue(Of String)
NewQueue.Enqueue("alpha")
NewQueue.Enqueue("beta")
[code]....
create a looping display (first "alpha", then "beta", etc.). What's missing? Also, why can I declare the Queue outside of a sub, but I can't fill it there as well (enqueue)?
Playing A Short Sound On Timer Tick?
Feb 12, 2010I'm writing a metronome program (a.k.a. click track; it's used for keeping you in time in music), and can't for ther life of me figure out how to play a sound byte (a short beep) as the beat.
I know I need to place this code in the Timer Tick event, but I just have no idea how to import/reference etc. the sound.
Timer.Tick - Remove A Control & A Hint?
Feb 3, 20111.) I would like to cause a Timer.Tick event in code. I know you can use PerformClick to cause a Click event. Is there a way to do the same with a timer?
2.) I have several "TextBoxes" listed as being on a "Form" but they cannot be seen. I have copied and pasted these during the design phase but have renamed the copies since. Is there a way to purge the unseen TextBoxes?
Hint: If you have "Windows 7", at the desktop, press <CTRL><SHIFT> and Rotate the Wheel on the Mouse. This will re-size the Icons on the desktop. "THIS ALSO WORKS IN THE VB2010 IDE" and allows you to Zoom the code window.
VS 2008 Timer Tick-event Never Occures?
Oct 21, 2009I'm trying to make my application react the way I want if the internet connection goes down, because the application need a permanent internet connection to work properly. This also includes if the server my program is trying to connect to goes down/stops or something.
What I want is that if a exception occures when trying to connect to the server, i calls a sub wich stops all timers, disables some buttons and comboboxes. At the same time it starts a new timer named "retrytimer". The retrytimer checks every fifth second if the connection is re-established. If it is, it activates all the controls and disables itself.
For some reason, the retrytimer tick-event never occures. I've tried inserted a breakpoint on the first line of the event-sub, but it never hits. If I check the enabled-property of the timer, it is set to "true". Why does this happen?The timer is made in the design window, and it's default enabled-property is set to false.Here is my sub wich deactivates some controls and starts the timer:
vb.net
Private Sub connectionLost(ByRef errnr As Integer) connected = False If starttimer.Enabled Then starttimer.Enabled = False If resulttimer.Enabled Then resulttimer.Enabled = False If radioposttimer.Enabled Then radioposttimer.Enabled = False If runningtimer.Enabled Then runningtimer.Enabled = False
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But here is the funny part! If I start the application without a internet connection, everything works the way I want. But if I disable the internet connection in the middle of my program, it acts as described. The lasts messagebox in my connectionLost-sub are shown, and the timer is set to enabled = true.
Does anyone have a clue? EDIT: I think I've narrowed down the problem quite a bit.It seems like the timer won't work correctly if the connectionLost-sub is called from within a BackgroundWorker. If it is called from something else than inside a BackgroundWorker, it seems to work the way I want.
VS 2008 Timer.tick Minimum Time?
Apr 26, 2010I am using timer.tick in my function, which reads data from a hardware at a interval given in tick. It is accepting the minimum interval of 1ms. Is there any way to run the tick in the interval of microseconds.
View 4 RepliesForce The Timer To Do The Code Within The Tick Event Before The Delay?
Jun 9, 2012it is possible to force the timer to do the code within the tick event before the delay.In other words..Usually the timer when starts it delays 'x' seconds according to the interval settings then process some codes then delay again 'x' seconds.What I want here is to do the code then delays 'x' seconds.
View 2 RepliesMake A Label Tick In Seconds Using The Timer Control?
Jun 9, 2011how can i make a Label control to have the present day an time value and also make the time tick as in a normal digital watch.
View 2 RepliesUsing A Threading.DispatcherTimer And Every Tick Of The Timer Runs A Subroutine
Mar 16, 2012I'm using a Threading.DispatcherTimer and every tick of the timer runs a subroutine. Is it possible that if the subroutine takes longer then 1s for the processor to finish that it will mess up the time of the timer that is counting in seconds?
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Timer Tick Not Happening On Form / When Told To Show By Delegate
Dec 6, 2010I have an app that basically monitors states, then when a state has changed, a notify form is triggered to show for the user.Timers are used on the form to showing a fading in/out of the form (somewhat like MS Outlook new email notification windows).I'm using a delegate from the main form to show the form, but when the first timer in the form is set to start, the timer's tick event is never ran. Everything up to that point in code works perfectly though.Is there something I need to do in order for the tick event to fire, like it would without the use of a delegate to show the form?[code]
View 2 RepliesC# - Button Click In Repeater In Updatepanel Not Triggered Until AsyncPostBackTrigger Timer Tick?
Dec 16, 2010I have an update panel that has a timer set as the AsyncPostBackTrigger.In this Update Panel I have a repeater and in the repeater I have a few buttons which have on click events.
The on click of these buttons does not appear to fire until the timer has ticked.I have tried debugging and this is what seems to be happening, either way it takes ages for the button click to actually fire.
Does anyone know why this would be and what I can do about it?
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Get The Trackbar To Display A Lower Tick Frequency But The Slider?
Sep 28, 2010im new to trackbars and i can get the trackbar to display a lower tick frequency but the slider still moves in increments of 1/10 ticks per movement. how do i get it to skip to the next available marked tick?
View 4 RepliesVS 2008 - Radio Button To Display Tick Or Cross
Dec 3, 2010I have to do a questionaire that gives three questions with multiple choice answers. When the user clicks a radio button it displays a tick or cross depending whether the answer is correct or incorrect. I also want to display, on a label, the number of correct answers with the number of attempts. i.e 1 out of 3. I have listed the code I have for the questions and radio buttons and I know I have to declare form variables but I do not know how to get it to recognise the radio button as a number to add to the total.
Private Sub radBevan_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles radBevan.CheckedChanged
If radBevan.Checked = True Then lblScore.Text = "Incorrect. The answer is Beveridge."
If radBevan.Checked = True Then picTick1.Hide()
If radBevan.Checked = True Then picCross1.Show()
End Sub
Timer - When The Message Box Stops, Then It Display The First Form Then Stop To Display?
Apr 8, 2011I have a problem in timers, I want to display 2 forms each one after 3 and 5, how to do that? I mean when the first form appears, after 3 seconds another one will appear, then after 5 seconds the second will appear. I have a code where someone gave me here but its for message box only, thus I modify it to put a form still does not work. Here the code I put in the timer below:
Private Sub frmblabla_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
tmrnote.Start()
Private Sub tmrnote_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrnote.Tick[code]....
I still have problem when the message box stops, it displays all the forms together. All I want is when the message box stops, then it display the first form then stop to display the second then stop to display the last. The first form must stay for 3 seconds on the screen, then after 3 seconds the second appears then after 5 seconds the last appears.
Display Messages According System Datetime?
Feb 1, 2011suppose i have meeting 31/1/2011 9.30 and when current time becomes 31/1/2011 9.30 it displays a
View 3 RepliesHow To Display Messages In Several Lines In Message Box
Mar 24, 2009how to display the messages in several lines in the message box in vb.net
View 2 RepliesFire The Timer Or Other Routine While Still The WHILE TRUE Routine Checks For Incoming Connections And Messages?
Jan 24, 2012I am using sockets to send message between computers. I send the messages alright. What I want is when the message "x0x" comes, the client must be closed within 5 minutes. Teh admin can cancel the request by sending message "-xx" as well. The routine that checks for incoming connections and accepts messages uses WHILE TRUE...END WHILE since it must always listen. Once I get a message, I need to fire a timer control or other that fires within 5 minutes. But the program cant leave the WHILE TRUE at all. If i exit it early, the timer fires and the program does get exit. How do I fire the timer or other routine while still the WHILE TRUE routine checks for incomin connections and messages?
View 5 RepliesDisplay ONLY One Message Box And Show All The Messages At One Go, Instead Of One At A Time
May 24, 2010I have the code below which works fine, however, if a mandatory field is not populated it prompts a message box, what I want to do is display ONLY one message box and show all the messages at one go, instead of one at a time. Also, I want the cursor to be prompting to the next mandatory field to be inserted according to the list.
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VS 2005 Control To Display Messages On The Form?
Oct 24, 2009I wanna replace message boxes in my program with messages displayed directly on the form like "saved","deleted","loading",etc.
To clearly explain my idea let me use the example of gmail's yellow strip on the top prompting "loading"