Setup Timer To Slow Down For/Next Loop?
Jun 20, 2009
I have a For/Next Loop that adds values to column in a DataGridView. I want to set up a timer to slow the For/NExt Loop down. So the DGV will load and then the user will click button on the form and the DGV will have numbers added into all the rows of a specific column. For simplicity, assume I want to load the numbers 1-100 into each cell and I want to see each number as its passed.
I am not sure how t set up the time to work with the For/Next Loop in the Button1_Click event. Do I have to use a Timer1_Tick event as well and somehow associate it with Button1_Click event?
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
View 9 Replies
ADVERTISEMENT
Jan 23, 2010
how I can slow down my progress bar timer. Right now my code is
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Timer1.Start()
[Code].....
I want to slow down how fast the progress bar speeds through it. And once its finished I want a spraet message to pop up saying finished or connected. How can i do this
View 14 Replies
Jan 8, 2010
I have a simple code that looks up a text file, reads the line of text, splits the string by semi-colons and then posts the results.
After it has done this, I have created a really simple while loop to waste 10 seconds before going for it again.... here is the code:
Private Sub checkTemps()
While Abort = False
Try
[Code]....
View 2 Replies
Apr 20, 2011
1. load gridview from an uploaded excel file (this would probably be about 300 records or so)
2. compare manufacturer, model and serial No to my MS SQL database (about 20K records) to see if there is a match.[code]is there a better way to find a match between the two?
View 3 Replies
Jan 4, 2010
I fill data in C1FLEXGRID from DataTable using for...each loop with DataRow and DataRowCollection but it gives output very slow. How can I solve it.
View 1 Replies
Mar 16, 2009
I have a program in where I need to loop though the entire dataset.datatable. I takes a long time. What is the alternative I can use to do the some job but faster?
View 4 Replies
Jun 8, 2012
In my winform application, I have 2 datatables, both contains 37000 rows. Table 1 has 171 columns and Table 2 has 4 columns. A While loop runs to update values in Table 1 from Table 2 for 4 columns. A For loop runs inside While twice to update values. It takes more than 5 min to do so. which i think should be a task of 5 seconds.
Columns being updated are:
Int64 - 1 Columns
String - 1 Columns
[Code]....
View 2 Replies
Aug 10, 2009
I have a label who's text is determined by looping through a listbox upon a click event. I would like to have a timer loop through the listbox (... to set the label's text) if the button is not pressed in time ('x' seconds).
View 3 Replies
Jul 30, 2009
I am trying to write a small program that will beep every two minutes as a gag for a friend of mine to play as a pratical joke on someone however when I run it I get this error message "TimeSpan overflowed because the duration is too long." and I am not sure as to why I am getting the error message.
View 4 Replies
Feb 25, 2009
In the code below I want to replace the big for next loop with a timer but this timer needs to be inside the small next loop.
Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
Dim s As String = My.Computer.FileSystem.ReadAllText(dname)
Dim c() As Char = {vbCrLf}
Dim sa() As String = s.Split(c, StringSplitOptions.None)
For Each s1 As String In sa
[Code] .....
I have tried to replace it with a timer but cant get it to work rightwhat this dose is sends a line of text to a notepad one line at a time with a pause in between each line that is sent to the notepad, now the big number "Num" is what gives me the passing right now but with those big numbers it slows my app down.
View 4 Replies
Jan 30, 2011
How can i make a trial program that has a 15 second countdown timer before the start button is active?[code]...
View 2 Replies
Apr 12, 2011
using Timer in this code as it doesn't seems to work.[code]
View 5 Replies
Aug 21, 2009
I have a For Loop, how can I convert that by using Timer event. I want to use Timer so I can add a 5 sec, 10 sec and 15 sec pause (interval) for each every loop. [code]
View 1 Replies
Feb 12, 2010
I have been battling with resizing a form in code, using either a timer or a for loop. When I say resizing, what I want to do is create the effect of a rolldown/rollup window. On my form, I have a groupbox with search criteria options, and underneath the groupbox, I have a datagridview with several buttons.
The effect I'm trying to create can be seen in Windows XP Security Centre; when you open up the security centre screen, you have your firewall, automatic updates and virus protection areas; to the right of each, there is a small round button, with either an up or down arrow, depending on whether the section is rolled up or down. When you click the button, the section rolls down or up smoothly.
[Code]....
View 2 Replies
Mar 31, 2010
I dont have a very good background in vb, so hopefully there is a simple way to do this.Basically what we have is a vb timer that is counting time is seconds. After fixed amounts of time, in this case 2 seconds, the if statements trigger certain events. Essentially what I want to do is say: after timer reaches st*2 (18 seconds) then restart the timer at zero. Is there any way to do this?
View 4 Replies
Apr 5, 2010
I've set up a basic loop to delete all the files in a particular folder. I've set the loop in a Try block so it doesn't crash the application when it gets to a file it can't delete. I'd like for the app to just pass over these type of files. At the moment, my loop stops completely when it gets to that exception.
View 1 Replies
Jun 24, 2009
Are 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]...
View 18 Replies
Jul 2, 2009
I have a form with a textbox, a button and a label. If I put a number in the textbox this number shows in the label but after that the label start to countdown from that number to zero.
View 5 Replies
Mar 11, 2010
I'm trying to use the timer (not a Timer object) in a Do... Until loop. I want the loop to put a single variable into a label. When I do this it works and puts the value into the label (lblOxygenReading):
If btnGetOxygen.Text = "Get Oxygen Reading" Then
Select Case True
Case rdoColorWhite.Checked
strCurrentColor = "White"
Case rdoColorRed.Checked
[Code] .....
It goes through the Do loop and the For.. next loop but doesn't change the label. Visual Studio doesn't show any errors when I'm writing the code, but when I run it, it hangs somewhere.
View 1 Replies
Feb 4, 2010
I am a new member that has just start coding. Im currently working on a small application for a desktop that will give me information from my system. I have code that works but might not be great. I have code that checks that the network is connected but need it to keep checking and updating. I Have tryed loops, goto and timers but not having any luck. Can anyone help point me in right direction. Here is my code so far.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Label1.Text = TimeOfDay
Label8.Text = "Time :"
[CODE].........................
View 2 Replies
Aug 20, 2009
Hi. what is the difference of sleep function and pause function (using timer) between a loop.
View 12 Replies
Dec 14, 2010
Basically I have 10 .png images.They contain a walk cycle I need to make some kind of loop inside a timer to make them change.
View 2 Replies
May 10, 2012
I want to create a real setup project for my application so when someone want to download it he can run only setup, not default setup that provide me VB . How can I do that?
View 4 Replies
Apr 2, 2009
add serial number requirement to Setup & deployment > setup wizard for VB.net application
View 16 Replies
Mar 14, 2011
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
View 2 Replies
Jun 8, 2011
I am using VS 2008 VB and setup my application software in Win XP without any issue. But after installed in Win 7, it doesn't work well (it show one file not found, but I saw the file in the right folder). Could it be the incompatibility of VS 2008 and Win 7? If I upgrade to VS 2010, will the issue be fixed?
View 10 Replies
Aug 2, 2010
What I need to do to make this code work for hours as well?[code]...
View 6 Replies
Jan 15, 2009
I 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.
View 5 Replies
Jul 9, 2009
I 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?
View 1 Replies
Apr 23, 2009
I 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?
View 3 Replies
