I 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.
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I 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.
VB6 create object of timer instead of timer control
View 5 RepliesIf a function returns false it is supposed to delete a file and then call the MyTimer.QuickFire event to relaunch the sub. It does this only 1 time, however my problem is that it might return false multiple times before all the function return true. The HourDownload Sub is set to fire every at hour at 5 minutes after the hour, the data could be valid at this time or it might not be valid until 40 to 50 minutes after the hour. So the quickfire event would need to run multiple times until everything returns true and the sub is exited. I also have another Sub Called FiveMinuteDownload that runs every 5 minutes, which is basically identical in structure to the HourDownload Sub. Both of these Subs call the QuickFire event in the event that a function returns false, however both only run once.
Private Sub HourDownload()
DeleteFileHour()
If OneHour() = True Then
If validateOneHourxml() = True Then 'Calls the validateOneHourxml function to see if the xml file is valid or not(if it is valid then it goes onto the next step, if it is not valid then it should call the MyTimer.QuickFire(2) which is a 30 second timer to relauch the HourDownload Sub.)
If HourImport() = True then
DeleteFileHour()
Exit Sub
[code].....
I am doing windows app. in vb.net
in Gridview shows customer details, now i need to add one column for timer,
ie, Each row having start button, while press the start button that current row timer starts now and hide the start button and show stop button.
I have a bunch of calculations, which will run down for x amount of years or months, specified by the user. These will be in a table (datagridview or something similar), which I will need to access to create reports. So basically calculating the data, then dragging various values at intervals. So it could be any cell at random or patterned. An example of this would be watching how much tax a person paid per year, and how much their income was per year. A pretty basic example. So there would be two columns, and x amount of rows depending on what the user wants to see, in this example, the next 48 months, in months not years. The user then decides to take every 12th value and putting that straight into a report, showing their expected schedule for tax and income.What sort of table structure would be the best to use? The table should be created automatically each time the event (for examples sake a button) is clicked. I'm not sure what I need the event to be based on yet. Most likely the form loading, or when the user tabs onto a new area. Should I use a datagrid view?
View 8 RepliesI 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.
View 2 RepliesThis is my
Private Sub Timer1_Timer()
Dim procs() As Process = Process.GetProcessesByName("samp-server")
If procs.Length > 0 Then
[Code]....
Its supposed to start the samp-server.exe if it closes but it doesn't?
i have a screen capture running just as a picturebox on a winform updating with a timer... i have it so it shows my race in a game.... now all is running gr8 on my pc... im now looking to make it viewable to someone else thats connected to my chat server i have made a picturebox on the client form and have the capture code in my server im hosting on my pc...
so my question is how and what is the best/quickest way to do so? maybe memorystream? if so how do i go about that? how do i send a image over memory stream? or is there a better way?
I had done one application using api which send the message to given number. The working of software is very fine without any error working on windows XP SP2. I heard that vista already contain the .net frame work so didnt installed .net frame work in machine. I checked in vista it shows .net frame work is in machine. But when same code i tried to run on Vista it gives the error. Error is as follows
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at SmsSendingApplication.frmSingleMessage.InternetOpenUrl(Int64 hInternetSession, String& lpszUrl, String& lpszHeaders, Int64 dwHeadersLength, Int64 dwFlags, Int64
[Code].....
I im trying to set a time so that the user of my quiz has to do their 20 questions in 40 minutes. i actually have a few questions about the timer. How do you make it so that you canrun this same timer over everyform and then make it stop on the last form? is it possible for you to convert the timer so that instead of it running in milliseconds it runs in minutes?
View 4 Replieswhat account for this error message in ls beta 2?'' The last change wasn't successfully persisted.Please shot down the running application.
View 1 RepliesWhich is the best way to store application and user settings of an application running with multiple instances?My problem is that using the vb's "Application Settings" one instance would overwrite the other one.I want to identify each instance with a number passed via command line argument. I could use this number to identify the appropriate settings of the running instance, but I see in a local INI o XML file a better way to handle that.
View 1 RepliesLet's say 10 desktop shortcuts, all with different names/icons, point to and can start the same exe application from the same directory. Is there any means for the application to know the distinct name of the shortcut that was doubled_clicked. Also is there any means for a running application to know if it was started by command line, by a double_click on the exe, by a double_click on a shortcut that points to it, or by another process' call?
View 4 RepliesI am trying to use Setup project. Want my setup to create a desktop shortcut with my application.I donot understand how to do it. Clicked on User's desktop, I created Shortcut to User's desktop, changed the properties Target and Working Folder as 'Application Folder'But it does not connect with MyApplication.exe When I ran the setup and tested Desktop short cut, it took me to the folder where application was installed, instead of running the application.How to make the application run using this shortcut?
View 1 RepliesI have an app with a timer control, and the interval is set to 60000ms (1 min). so every min i have some event happen. thats pretty simple. however, i want to have a 15 second warning that the event is going to happen. so basically 45 seconds after my timer starts, i want a message such as "15 seconds left until event x happens".
would i have to use 2 timers? i guess im lost on the logic. i know how to use the timer control, but i have been googling all night trying to figure this one out. i have tried using 1 timer set to 45 seconds (for the warning) and another timer at 60 seconds(for the event) but they go out of synch after 1 iteration and will not consistently stay 15 seconds ahead of the other. i dont want to post any code i have, because it is all trash and i want to start over from scratch.
I am trying to create a timer in VB 2008 and would like it to have minutes, seconds, and milliseconds. The timer should look like this : mm:ss.ms
View 6 RepliesHow do i create a timer programatically, say, every time i hit a button. if i want each timer to stay running for an hour, would they have to be named different each time the button is pressed, since the previous timers would still be running.
View 14 RepliesI have this current problem I created user control with timer and use it on my form. My problem is how can I create array timer bound to user control.
example my user control name is uc_project my timer g_tmr
On my main form
uc_project.g_tmr.Enabled = true working fine
But how to make uc_project.g_tmr(index).enabled = true to create multiple timer.
how to create a countdown timer in visual basic
button (start)
labelsec(Sec lab)
labelmin(min lab)
labelhr(hours lab)
[code]....
How would I go about creating a Timer that will fire an Event every 24 hours, 2 minutes? I know the Interval in ms is 86,420,000, but of course the Timer Interval will not go that high. Do I have to have a series of Timers to go off every minute until 24 hours is reached???
View 6 RepliesI'm using Visual Basic 2008 Express Edition.I'm working on a class. At various points, I want to insert a delay between executions of the code. Nothing terribly large. Around 50-200 miliseconds. It doesn't seem like much, but it makes the program run better. I'll probably randomize the length of the delay later between those two marks. So basically the code would go...SomeFunction()timer delaySomeFuntion()I have the timer declared as
Private tmrTimer As TimerAnd each place I want to use it, I simply redeclare it. Or I might add it to the constructor of the class. Either way. Just thinking adding it to the class constructor would probably be a better idea.
tmrTimer =
[Code].....
End SubUnfortunately, I get the error "Handles clause requires a WithEvents variable defined in the containing type or one of its base types"Now remember, this is all contained in a class, so theoretically speaking I can simply move the class file from project to project and reuse it, without ever having to worry about how the class works. Reading through the Timer specifications, I probably need to do some cleanup on the timer after I use it. Am I correct in this?
I need to run an external JAR file (which is minecraft) within the window (form) of a VB.NET application, so like having the program in the center and additional text I like around it.
Is this possible, and if so, how?
I'm trying to create a time during runtime. I can create the timer just fine but I cannot call it from another sub.[code]...
View 4 RepliesI'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].....
I 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
[Code].....
Currently I'm creating a task that runs a hardware i/o loop for the duration of my program.i.e. it's a task that's created at the program's start and runs a loop that is only broken at the programs termination. Each loop cycle communicates via ethernet to hardware.depending on time outs each cycle takes 30-300 msec)I've noticed that if the loop runs with out any break that the program really slows down... to counter act that I placed a thread.sleep(x) in the loop
View 6 Repliesok i need to create a simple form that has a Stop watch in it that counts up can some one
View 13 RepliesIs it possible to create a Digital / Analog clock in vb.net with out using the timer control?
View 2 RepliesAre u able to take a look at this code and see how can I create a loop on timer1 to control the rate of timer 2... Coz this is the code that my lecturer had amended..
[code]...
