Get The Current Time In Milliseconds (long)?
Dec 8, 2010
I'm looking for the equivalent to a Java System.currentTimeMilli(), in VB.NET.What is the method to call? I know about Datetime.Now, but not about the actual conversion to long milliseconds.More details about my specific need: I need to manage a login expiration. So most likely when I log in, I will set a "expiration_time_milli", equal to the current time + the timeout value. Then later, if I want to check if my login is valid, I will check is "expiration_time_milli" is still superior to current time.
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May 4, 2009
I have a value which is milliseconds, I did some experimenting, and with my very limited math skill I came up with this:
Dim val = _Memory.ReadValueFromAddress(hProcess, timer_addr, 4)
Dim seconds = val / 60 Mod 60
Dim minutes = val / 60 / 60
I don't even know what will happen when the hour counts down,
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Mar 11, 2010
I need to have a microsecond-timer in my program. The default VB timer doesn't work for me because I need to count time accurately. Does anyone know a way to count time in for example 0.1 milliseconds?
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Sep 26, 2003
Q: How to computer the interval time from Starting block until its finish? For example, How to compute the time (in Millisecond or Microsecond) for execuation a serting block (Sortign or Searching Algorithm for example)? NOTE: Time must be in Millisecond or Microsecond, NOT in Second!
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Apr 20, 2010
I would like to emulate the "new Date().getTime();" function that Javascript has. This calculates how many milliseconds it has been from Midnight, January 1st, 1970 to the current time. How would I go about doing this?
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Oct 19, 2010
just trying to work out some functions, like time delays and such and autoclickers.What I have is two command buttons and one textbox, and what I want this program to do is make a mouseclick according to the time inserted into the textbox (in milliseconds). e.g say someone types in "500", after button 1("START") is clicked, the mouse will click every 500 milliseconds, and button 2 ("STOP") will halt execution. Also, would this continue execution in the background, if i have other programs open? I've been able to make a program that has a timer which ticks at the specified time, I just can't get it to make the mouse click, i've tried "cmdButton.PerformClick" but thats not working,
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Jan 9, 2011
I have been hitting myself over the head for a couple hours now. I am trying to calculate the new latitude & longitude (position) when all I have is old latitude & longitude, distance traveled and direction. The formula I found online is:
[code]...
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Jul 22, 2011
So I currently have the following:
2 timers
2 labels
1st label is "Clock" this pulls the time from the users current time zone/local time
2nd label is "UTCClock" Which would be UTC time
Now I have this for the first label: clock.Text = Format(TimeOfDay, "hh:mm:ss tt")
Which would give the users current time zone/local time. As for the UTC.. how would I add in for the UTC time from where the user is located at? I did some searches.. but couldnt find what I was looking for.. IM pretty sure its not as easy as getting the users current time zone/local time.. So im assuming that Theres a "bit more" code into getting UTC time..
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Aug 24, 2010
I am using this line of code on form load event it is working very fine but i have to problems
1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.
2. When form loads it load the current date and time but the time does not change it should run.
What should i do please please help me code is as follows
Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay
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Dec 6, 2010
How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?
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Mar 27, 2011
I'm writing a report scheduler that is somewhat of a clone to the backupexec scheduler and the layout can be seen in post #10 here: [URL]..It works great and saves/edits/deletes records just fine, but now i need to compare those records one at a time in a windows service that i'm writing in order to trigger automated report creation and emailing - i already have the report and i already have the code for the emailing, i'm just looking for the most efficient way to loop through the table (that i've pulled in to a dataset) and compare its records with the current date and time - if true, the event fires.
[Code]...
1stSun, 2ndSun etc are bit fields, time is a datetime, and the remainder are varchar. My service checks the database every thirty seconds.The english version of what i'm trying to do is "Connect to the database, grab the entire table (it will always only have 5-6 entries max, so i felt 30 second sweeps was okay), and If today is the 1st Sunday of the month, and it is currently 11:00:00 a.m. (could be any day or time, this is just an example) - loop through the dataset to identify if any records match the time field or greater - if they do, fire the report
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Jul 5, 2010
I'm going to design an Application (C# or VB.NET) which use .NET Framework to run for very long time. It may be restarted every year or even more...Is there anything (using special design patterns or so) which I must care about in designing "Long time running applications in .NET"?
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Apr 1, 2010
I've been using things like FileOpen, and FilePut for a long time in VB.NET, and it's never presented any problems. However in my latest project I'm using CodeDom to compile at runtime, as you know FileOpen, and things like that are the old VB6 methods, such as MsgBox("Msg"), and these don't work. So I need to know how to do this using only the newer VB.NET code.
[Code]...
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Dec 7, 2011
I wrote a program which loops through a very long CSV file (50 meg) and parses the data as it goes.Sometimes, the program aborts and I get the following message:The CLR has been unable to transition from COM context 0x37a090 to COM context 0x37a200 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
I know its going to take a while. There are several hundred thousand lines of text in the file that this program is reading. I am not sure exacly waht the message means, but my program seems to work fine other than the message. odd thing is sometimes the message doesnt always pop up..
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Sep 7, 2010
I need to compare the current time with different time intervals, how can i get the time in this format so i can compare them.Format: 09:45:00
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May 12, 2010
I have a form with the DateTimePicker control on it. When I select a date it gives a value like "date time" (Eg.: 5/12/2010 12:20:35 PM). But here the time returned is current time. What I need is for the date chosen from the picker automatically set the time to 00:00:00 instead of the time when the date was picked.
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May 12, 2010
i have a form with the DateTimePicker control on it. When I select a date it gives a value like "date time" (Eg.: 5/12/2010 12:20:35 PM). But here the time returned is current time. What I need is for the date chosen from the picker automatically set the time to 00:00:00 instead of the time when the date was picked.
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Oct 28, 2009
I've a solution with 15 projects (14 class libraries and one web application). Each class library has corresponding test project (i.e. if I have MyApp.Services project there exists MyApp.Services.Tests -- using NUnit). Everything is written in VB.NET. The problem is that when VS tries to compile any of *.Tests project it stops responding (the bigger the project the longer the period without reposnse). I don't know where to start looking for an issue. I'll add that I've R# 4.5 installed.
UPDATE 1:Is there any way to benchmark a build in visual studio? To get build times for every project?
UPDATE 2:It seems that there is no difference after disabling R#.
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Mar 10, 2009
Occasionally, my website will stop functioning and anytime an ASP page is accessed, the browser will hang for many minutes before bringing up a correctly formatted HTML page with nothing in the tag. It seems to happen whenever more than one person attempts to access an ASP page, but I'm not positive it's isolated to those conditions.
Let me emphasize that the issue does not arise when accessing directories/HTML pages/other files. Only ASP pages are the problem. I am using lunarpages as a host.
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Apr 5, 2009
I have a problem with my (aspx.vb, aspx) program. Since my vb program require more than a day to make some data analysis. however, the page always run a long period(one hours exactly) will be downed and become cant display the page. i am wondering is it related to dns error?
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Jun 13, 2012
Actually, I am trying to find out whether the partno is existing in the database table or not and it takes long time in count = checkCommand.ExecuteReader statement
Public Function CheckProductNo(ByVal Partno As String) As Boolean
Dim count As SqlDataReader
Dim valid As Boolean = False
Using connection As New SqlConnection
[code]....
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Sep 9, 2009
I'm trying to time how long an operation takes in Visual Basic (VS 2008) but its not working. the code I have is as follows:
[code]...
this is in an OnClick event, so what happens is that the user can click a menu item, and it goes and sends any changes it has to a database, and pulls down any new changes to a local data cache. This operation takes time, depending on how many changes are on the server and how many are cached locally. I've thought about making this a background task, so it doesn't draw away from the main app while it's running, but before doing that, I'd like to get an idea how long the operation takes. Since I can't exactly do a progress bar, I figured using the stopwatch would tell me how many ticks/milliseconds would occur between click, and when the "total synced" message comes up, but every time i run it and do an update the message always shows 0 ticks/ms. I don't think it's accounting for the delay, just from start to finish. Is there any way to make it so it detects a message popping up and times off that?
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Oct 11, 2011
I need to find the best solution to count how long it takes to make a request to database like connect, do a select and receive the answer. And if that take more than 300 milliseconds I must cut the connection.
Public Function FindLastCt() As Decimal
FindLastCt= 0
Dim strrequete As String = "SELECT MAX(CM_Codigo) FROM CAJITAS WHERE CM_Date >= '" & Format(DateTime.Now, "dd/MM/yyyy") & " 00:00:00.000' AND CM_Date <=
'" & Format(DateTime.Now, "dd/MM/yyyy") & " 23:59:59.999'"
Using connection As DbConnection = factory.CreateConnection()
[Code] .....
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Jul 6, 2009
I have a backend database in MS access, which is updated using excel as front end. Due to network issues the record updation takes lot of time. Would it be faster if i use VB.net as the front end.
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Jul 6, 2009
I am on one asignment of convering C# to VB.net and stuck up with this problem.C# application has one class having inline two dimensional array initialized with size 168X168. I converted same class to Vb.net. Now whenever I create instance of my this VB.net class, It take almost 3 minute.
To figure out problem, I put break point on sub new() (first line of my constructor), and behaviour is realy strange because it takes 3 minutes to reach at first point of my constructor.Whenever I comment out my large size array initialization code, It works perfect. Now please note that same code is working fine in C#. It is not taking even few millisecond to initialize that class.
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Apr 19, 2011
I'm trying to make a macro for a game, so I use long spells in a shorter amount of time. I'm having trouble with a lot of things. For starters I get the when I start the programs timer: "A call to PInvoke function". (I'm calling it a hack, but it's not a hack because it doesn't hook into memory addresses, only sends keys when the correct combo are pressed)
Option Strict On
Public Class Form1
Private Property hEnabled As Boolean
Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Long) As IntegerPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If (hEnabled = False) Then
[Code] .....
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Apr 18, 2011
I am using the below code to get the local Administrator members, but this code takes about 6-7 seconds to execute. More precisely the "GetObject" takes that long.Is there another way to get the same information but faster?Also, where can I find what other properties the objects holds ? (To see what other useful information I can get)[code]
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Feb 10, 2010
Whenever I publish my app, or when I run the exe from teh debug folder it takes a couple of seconds before the splash screen shows.However, when I run it from within VB (by pressing the "play" button) the splash screen shows immediately.
What could be the cause of this?
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Aug 29, 2011
I am writing an application for managing mp3 files. I use AXWindowsMediaPlayer1 for playing files and UltraID3 for reading and writing ID3 tags. Every time the user selects to switch to next song, the ID3 tags of the current file need to be updated. My problem is with Media Player taking a long time to release a file for access after doing a "close". Currently I need to add a 6 seconds delay between the "Close" method of the media player and the ID3 tag "Write", otherwise I get the error saying that the file is currently in use. Anything less than 6 seconds does not work...
I attached a short version of my application which focuses on the issue.
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Mar 14, 2012
MVC3 vb.net. In my app I have a point where 500+ emails with attachments are sent out using a for each loop to accomplish this.. Nothing is returned to the browser the entire time this is running so eventually the browser think it has timed out... I tried just having it redirect to another actionresult function after every email and that function just passes it back to the email function. This is not working and I feel the reason is that nothing is actually being sent to the browser window its self.. Is there a way to fix this issue??
[Code]...
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