VS 2008 Stopwatch Class With Incorrect Time?
Jun 9, 2011
I'm having trouble with a Stopwatch one one of the user's machines. I'm using the Stopwatch class to track time elapsed on one of my applications, and it seems to work fine on everyone else's machine, but on one machine it goes really slow. It's probably 1/3 or 1/4 of the actual time elapsed.
Here's the
I'm using the timer to update the textbox that displays the time elapsed of the stopwatch every second.
Partial Public Class
Private WithEvents breakTimer As New Timer
Private breakSW As New Stopwatch
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Oct 23, 2007
I designing a stopwatch type OO program and am stuck on trying to figure out the split time function of a stop watch. I want to list the split times in a list box as the user presses the split button and also display the final split time when the user presses the stop button. I feel I'm real close but just can't get over the hump, especially trying to code in OOP. The rest of my program works fine (start, stop, elapsed time). I am programming in VB 2005 and will display my relative code from both the class and form areas.
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Sep 16, 2009
I have an application that has several stopwatches. I would like to be able to 'sync' a stopwatch with another at any given time. I tried setting the Elapsed time of one stopwatch to that of another stopwatch but I get that that property is 'read only'.
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Sep 25, 2011
ETA: Using Environment.TickCount does not present the same problem. ETA2: I should add that I don't actually use the Forms.Timer in my app - as this would negate the use of a high frequency timer. I've used it here to simplify the code. ETA3: I've published a workaround as an answer below. I'm having problems with the StopWatch class that I'm observing on a laptop with XP but not a different laptop with Win7. Here's the test code:
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Jul 27, 2010
I have a stopwatch that begins counting from "00:00:00" upon clicking Button2 (in UserInterfacefrm). When the user
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Mar 5, 2010
I have a StopWatch running, I convert the milliseconds to the following format. 00:00:00 i.e HH:MM:SS which is a label.
I can pause the the stopwatch and resume but I dont seem to be able to edit the stopwatchs time. So lets say my time says 00:00:02 , i now want to pause the program which I can, but also change the stopwatch time to 00:00:10 and resume counting.
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Jul 31, 2011
I have a stopwatch that counts down to zero from a random time set when the app loads. Now what I want to do is when that timer runs out and someone clicks reset it again is random rather than the same time as before. My code is
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Jan 18, 2012
I'm currently trying to code a program which basically uses the stopwatch function to time the length of the users break. Basically when I work at home I want to allow my self 4% of my shift length in personal breaks.
So far I have
Public Class Form1
Dim elpsTmr As New Stopwatch
Dim ts As TimeSpan = elpsTmr.Elapsed
Private Sub txtshiftlength_TextChanged(ByVal sender _
As Object, ByVal e As System.EventArgs) Handles txtshiftlength.TextChanged
[Code] .....
The only fields I don't have working are hard ones. I'm trying to figure out how to subtract the length of the last break used from the minutes allowed to take and display it in a text box to display how many minutes you have left to take. And also to work out how many minutes have been used since the program has been opened or reset.
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Oct 5, 2011
So a timer's maximum interval is 1 which is a thousand ticks a second. A Stopwatch's frequency is 2238906 ticks a second on my pc...
I am wondering if there is a reliable way to trigger an event for each tick of the stopwatch without missing any ticks...
If I can somehow get a Tick event for the stopwatch, I believe I can increase the resolution of my input recorder....
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Jul 19, 2011
I am writing a Windows Forms Application using Visual Studio 2008 Pro .NET version 3.5 with STRICT and EXPLICIT options both ON.
I am having trouble using ".Start()" and ".Stop()" for my stopwatch method from other methods. I have tried several different methods of writing the line that calls the start and stop, but none work, and VS keeps sending me in circles with its correction suggestions.
Form Level
vb
Imports System.Diagnostics
Class Level
[Code]....
and promptly gives me the same error with no options for correcting it. The same thing happens for the stop command.
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Feb 22, 2010
I have a stopwatch in my program. I start the stopwatch with the start button I created. When I stop it it gives the results of the time in a label that I have named labelTime. I have a Calculate button I have created. I also have a label I have named calcResult. I want to click the Calculate button and divide the stopwatch result (labelTime) by 60. I want the results of this calculation to be displayed in the label calcResult. I keep getting errors saying labelTime is a string value. I believe I will need my calcResult to be a Decimal.
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Apr 8, 2011
I want to have my main class for creating activity for 2 different flags.
1) One with relative layout Textview and images for which I am extending my class as[code]...
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Mar 23, 2010
One the click of a button the stopwatch starts, then on the click of a second button the stopwatch stops then states either in a msgbox the time taken between the two button clicks.
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Aug 13, 2010
i just want to make a program with first form to enter the serial if correct just continue to form2 if incorrect just a popup say like "Serial Incorrect" how i can make it ?
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Aug 31, 2011
Below is the code that I have while reading the DGV column and let me know what I'm doing wrong, here.
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Jul 28, 2010
I am trying to create a Datagrid at runtime. This I have done on other forms no problem yet on this I get a error:
"Incorrect syntax near the keyword 'FROM'." And the the following "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user."
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Jun 29, 2011
The programs runs fine for about 10 seconds but then I get this error message: ArgumentException was unhandled. Message: The parameter is incorrect. Here's my
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Nov 2, 2009
This is the MSDN example for handling the BeginReceive callback.BeginReceive is called over and over until no more data is available, i.e. EndReceive returns 0. However I am finding that the callback is only fired when there is data available.
I'm guessing that the example is simply wrong or refers to expected behaviour in a previous version of .NET, although it says it is for 3.5.So how do I ensure I have received all of the available data?
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May 6, 2009
Look at the code. all i need to do is take all notes from orders table.
The connection is openned
Private Sub Load_History()
Dim myCnt As Integer
Dim myStr As String
Dim totalrows As Integer
Dim myDataset As New DataSet
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Feb 22, 2011
when saving am getting this error"undiscclosed quotation mark after the character string')'.incorrect syntax near ')'.I used the command in other codes which working perfectly. [code]...
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Feb 27, 2009
i am creating a quiz which would be 20 questions for software design students and may use alot of code.my first problem is the score for the test, i know a friend of mine can add up the score but he cant move onto the next thread until you have got the question correct which is sort of cheating, i want to know how you create a variable and make that variable stay in all the forms and add up the score of correct and incorrect answers and come up with a final score for the user in the end.
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Aug 29, 2005
The trouble with the UDPClient class in .NET Microsoft, in its infinite wisdom, built this class in .NET as a simplified method for UDP communication. The one critical thing they forgot to include was a simple time-out feature.What's wrong with not having a time-out? Plenty, if you have one end of the transmission expecting to receive data, and the source of the transmission decided to go belly-up. If you use the UDPClient.Receive method, and the application sending the message does not send the message, then that UDPClient.Receive method will block forever--at least until the application is closed by the user.
A rather nasty way of handling such a situation. By the very nature of UDP, packets can get lost and never be received, causing the application to wait forever, or a bug in the sending application may simply cause it to never send the message that is expected.
Why on earth Microsoft did not put a time-out feature in this class is beyond me. What this means is that if you are doing any real programming you'll find the UDPClient class to be hopelessly inadequate. You'll have to instead use the more generic Socket Class to accomplish your task.
Below is a code sample that uses the Socket Class to accomplish the tasks that the UDPClient is meant to do, but with a timeout.The UDPClient Class is for synchronized data transmission. If you are trying to do asynchronized transmission, you would have had to use the Socket class, anyhow.
Code:Imports System.Net.Sockets
Protected Shared Function UDPDataTransmit( _ ByVal sBuff() As Byte, ByRef rBuff() As Byte, _ ByVal IP As String, ByVal Port As Integer) As Integer 'Returns # bytes received Dim retstat As Integer Dim Sck As Sockets.Socket Dim Due As DateTime Dim Encrp As IPEndPoint Try Sck = New Socket(AddressFamily.InterNetwork, SocketType.Dgram,
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May 3, 2009
I need a start date, a Total time passed until now, an average time per step, and a estimated time to finished. How can I do that? Also, I can close the application and when start up again I want to get the time counters as the last time, so How can I store that data is normal txt file (I say txt to take advantage of the ini app file which is a txt).
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Oct 13, 2010
Is there a way to add x seconds to a stopwatch once a button is pressed? the stopwatch is currently running by the way.
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Jul 27, 2011
I have a VB.NET app in which I'd like to use the Stopwatch class. The stopwatch will get reset every time it enters a particular method, which may be in less than a second, or not for hours. Is there a limit to how long you can let a stopwatch run before something bad happens? i.e. an error, or performance degradation?
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Jun 8, 2011
I was just wondering if there was anyway to create some sort of stopwatch, that doesnt include labels signifing, milli seconds etc?
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Dec 13, 2009
I have to create a cronometer or stopwatch. I'm not sure how to do this though. I have to have methods for starting it, stoping it, and reseting it. I'm thinking it might need to be a timer, but is this the only way? I have no idea how to work with timers or writing methods for them.
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Aug 28, 2009
I am writing a very basic memory match card game, and am trying to get the program to flip over the selected cards, wait 2 seconds so the user can see the values, then flip back over. The code I have to do this is:
Private Sub Label_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click, Label2.Click, Label3.Click, Label4.Click, Label5.Click, Label6.Click, Label7.Click, Label8.Click, Label9.Click, Label10.Click, Label11.Click, Label12.Click, Label13.Click, Label14.Click, Label15.Click, Label16.Click Dim message As String = "Label Clicked was Index" + sender.TabIndex.ToString
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Feb 16, 2011
I puzzle with (setting uptime-real time clock) calculation.ex. if I want my stopwatch countdown fromtart: 18.20.30 - stop: 18.50.50 = difference time is 00.30.20 that is easy butstart: 18.20.30- stop: 18.50.40 = difference time is 00.30.40
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Jan 28, 2010
ok i know its not possible for a normal computer to exceed Long.MaxValue for Stopwatch.GetTimeStamp, but what is the scripted behavior of VB when Stopwatch.GetTimeStamp actually exceeds Long.MaxValue?
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