VS 2010 TCPClient - Program Locks Up For A Few Seconds?
Dec 21, 2011
I am making a program to test whether or not a host is online, assuming that host has blocked methods such as ping and netstat -t etc....
So I decided to try and connect to it, but the thing is every limitation I have set doesn't work. The program locks up for a few seconds (which I don't want in the first place) and I cannot terminate the client after say, 100ms of trying to connect.
[code]...
I have tried client.ReceiveTimeout but that didn't speed up the process, still takes the same amount of time for the program to respond.How should I go about testing if the server is up now? Or is there a way where the program wont lock for a few seconds as it does with the TCP method.
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Oct 18, 2011
What I need is a program that can click every 8 seconds. Heres the catch, It needs to click a location of a webbrowser but not interfere with the users mouse.....
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Apr 3, 2012
I'm developing a new program to add rows to a spreadsheet using VB.NET on a Windows 7 64 bit computer with Office 2010 installed. I have done this many times in the past with slightly different setups with no problems. This program locks on: xlWorkBook = xlApp.Workbooks.Open(FullFileName)After several minutes HRESULT=0x80131c08.ErrorCode=0x0 appears
I have to idea why it locks. The XLS does exist in the folder.
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Nov 23, 2010
I use VB 2008 express edition and i have this problem.I want to make a program that password locks any folder you want.(Using Icacls from command promt).My problem is that when i run the program
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.DirectoryExists(TextBox1.Text) Then
[Code].....
All this is done becouse i can't save the listbox contents in My.Mysettins.If anyone would be able to show me how to do it i would be helpfull.But please don't give me 50 lines of ununderstandable content.I want something that i will be able to understand becouse there no reason if i use it without knowing what it does.
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Mar 31, 2011
I have a .Net program that has to run on a cluster of server 2008. To find out the right IP I resolve the dns by GetHostEntry(VarDefinedInfConfig).AddressList(0)
but when I am converting my old code (this code picks the wrong IP) dns.GetHostName().AddressList(0) => this returns a virtual IP and not the right one.So I changed my TcpListener to (dns is parameter from config)Dim listener As TcpListener = New TcpListener(New IPEndPoint(Net.Dns.GetHostEntry(dns).AddressList(0), 8001))
listener.Start()
[Code]...
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Jul 7, 2009
I'm using Visual Studio 2008 and developing a VB.NET application. I'm having strange lockup problems with my program, but only when Internet explorer 8 is opened.
When I cover my form with another window and then uncover it, I find that it has locked up. My program has no references to IE and the only thing it even has to do with IE is using Process.Start with a web address.
My program works fine and exactly as it should, but only when IE is not opened.
Does anyone know why a program would lock up only while IE is running?
Edit: I've done some digging and I've found the offending thread in my program.
I don't know what starts this thread or what it does, but when I kill it, my program no longer freezes. The thread is one of the CreateApplicationContext threads, here is the last few items in the stack trace of that thread.
6 ntkrnlpa.exe+0x897bc
7 ntdll.dll!KiFastSystemCallRet
8 mscorwrks.dll!LogHelp_TerminateOnAssert+0x61
9 mscorwrks.dll!DllUnregisterServerInternal+0x10523
10 mscorwrks.dll!DllUnregisterServerInternal+0x10542
11 mscorwrks.dll!StrongNameErrorInfo+0x34387
12 mscorwrks.dll!StrongNameErrorInfo+0x34815
13 mscorwrks.dll!CreateApplicationContext+0xbc35
14 KERNEL32.dll!GetModuleHandleA+0xdf
Process explorer says my program is using no CPU nor throwing any exceptions while it is hung.
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Jul 19, 2011
I have a do until loop. But whenever my program get's to it, it always locks the application so I can't click on anything until the loop is finished. How do I fix this? I want to be able to stop the loop with a stop button.
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Jun 8, 2012
I am making a contact management program that works like a chat conversation. First, the client connects with his/her name and says: GIVE_INFO. Then, the server sends the client's info that it gets from a csv. Finally, when the user makes all desired changes, the client "tells" the server the info separated by commas and the server replaces the information in the old csv with the new info.So, the program worked for 2-3 times then all of a sudden when I made some changes it stopped working[code].......
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Jan 20, 2012
I've been searching for a way to route requests from a tcpclient through a proxy server, but I cannot figure out a way to do so. Can somebody tell me a solution?
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Sep 2, 2011
I am making a program that NEEDS to be password protected, so i made a textbox with a code so that when the user enters the right password it lets you in. But if the user/person enters a wrong password 2X it will kick you out. So is there a way to keep the
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Mar 25, 2011
How to serialize TcpClient variable
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Jul 6, 2010
What Code Can I Use To Have The Program Refresh Every 10 Seconds?
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Mar 23, 2010
When I close my compiled application, it will always hang for a few seconds before closing. It isn't something to do with my PC, I've got a quad core with 4GB of RAM -[code]...
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Jul 7, 2010
ok i have a program that check a website every 30 seconds. when it has completed going to the site it takes the sites body text and puts it into a richtextbox. how can i make it so that every time it adds a new line to the textbox it performs an action.
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim result As Integer
[Code].....
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Apr 21, 2009
hit the space bar every * seconds. When you hold down a key it will spam 3 times every 2 seconds. Or whenever you press space (meaning the key). I need the exact codes. I've tried Sendkeys.send {"Space"} Etc.
I've been trying for a while. I cant seem to figure it out. Please simple codes if possible.
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Jan 15, 2012
I am trying to make a simple program to convert time given in seconds to hh:mm:ss format. But for some particular input values it produces incorrect time format. This is what I have tried :
Public Class Form1
Dim Hours, Minutes, Seconds As Integer
Private Sub btnReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReset.Click[code]....
Works When the Input Value is 30:
Does not Work When the Input Value is 31:
What have I done wrong ? How can I fix this problem ?
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Jun 30, 2011
I want to convert seconds such as 254565443 seconds to hours, minutes, and seconds and thought if I could remove the decimal and the numbers behind it and not change the number in front of the decimal then it would work.
dim seconds = 254565443
dim Hour
dim minute
[Code]....
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Dec 10, 2011
I have been making a downloader in vb.net everything is working fine Appart from the downloading, it takes around 10 seconds for the download to start Is this normal or am I doing something wrong?The download is being done in a thread and before when I have tried to download outside of a thread the program dosnt respond for those 10 seconds
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Mar 26, 2011
I would like to stop the program for about 5 seconds to give the illusion that the computer is thinking. I tried a timer but could not seem to do it.
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Jun 13, 2011
I have to write a program that does a count down on the number of seconds you entered in the GUI I have most of the code and it basically has to countdown the seconds i type in the txtStart. Attached is the program design..This is what i have so far with the code. It converts seconds to hours and minutes and seconds, but it doesn't do the countdown.[code]
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Nov 20, 2009
i want to make it automaticly close after 2 seconds of opening it without having to touch a button or anything like that.
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Jun 25, 2010
This is my function to goto a specific time in a movie or music, ... check it out..
'GOTO TIME IN MOVIE, or SONG.
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
[Code]....
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Aug 8, 2010
I've an old vb6 ocx in order to show an msgbox with autoreply in n seconds.
rm = waitMsg("can't connect to host...",9,"*Retry","Cancel")
if rm = 2 then exit sub 'cancel
acts in same way of msgbox, but after 9 seconds (in the example) then auto click the Retry button (the default button, the one with * prefix). maybe I could convert this old ocx to net, but wondering if there is not an better alternative using messagebox.
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Apr 22, 2012
How to make 5 seconds pause in VB?
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Feb 16, 2011
I want to create a button that when clicked on He will show the Msgbox and after X seconds more MsgBox will show agin.
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Apr 4, 2011
I am creating auto mailer but i am having problem on BCC. BCC is listed on checkedlistbox. Image ([URL]) I would like to send on those email address every 5 seconds. but my problem is i'm always getting an error message "a recipient must be specified" Here's my code...
[Code]...
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Jun 14, 2012
I'm filling a DGV by setting it's datasource property to a datatable, but for a DateTime columns it doesn't show seconds.
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Sep 30, 2011
Here's the code for my "Play Audio Button"
[Code]...
This works great, but I would like to make it so that I can tell it to play the sound file starting at, for example, 3 seconds and ending at 9 seconds in. For instance, I could have 2 Numeric Up Down boxes on my form and whatever NuD1.value = is the lower range and NuD2.value = higher range.
How do I specify at what point in the sound file I want to start and at what point in that same file I want to stop?
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Nov 16, 2010
I need an example snippet of code in which the computer displays a message about every 20 seconds until a key is pressed.
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Jun 14, 2012
Quick question - if I have a timer set to 5000 (5 seconds) and the code in the timer takes longer than 5 seconds to run because of sql stuff, will the timer wait until the code is done till it fires again?
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