Disconnect From A Database Server?
May 24, 2012
I Have created an application with MySQL as database server.everything goes fine.When i tested the application on multiple system at a time.When i monitored the database server (MySQL) I saw huge number of connection to the database. and all are in sleep mode.I used below code for connecting and closing connection after every query.
'Connection variable declaration
Public conn As New MySqlConnection
'Connection Opening command[code]....
But i see huge number of connections in sleep mode at database server.
View 1 Replies
ADVERTISEMENT
Apr 2, 2010
I connect an OPC server, I can get Datas, But when i try to disconnect from server Opc server's clients size does not decrease until program closed.[code]It gives no error. It removes all items from GRP1 but cannot disconnect.
View 4 Replies
May 22, 2010
ok i got this from online source the only problem i found with it is it will not disconnect from the server on a regual basis, now i did some mods on it but nutting to change the way it works i am using vb2008 the server side i have no problem with it. here is the code for the client:
[code]...
i just can't get it to disconnect on a regular basis only maybe 50/50
View 1 Replies
Dec 23, 2011
Searched quite a bit and am having trouble finding how to have the server catch the client has disconnected. When the server detects the disconmnect it goes bonkers. Would like to Try and Catch ex so I could gracefully handle it.
View 2 Replies
Jun 24, 2010
I am working on a chat client and server, and so far it works well, but when I close the client, the server throws an exception because it continues to try to do processes on the disconnected client. I have tried adding clientSocket.Close() in various places throughout the client and server with no luck. Does someone know how to add the disconnect code to either the server or client with this code?Server:
Imports System.Net.Sockets
Imports System.Text
Module Module1
[code].....
View 5 Replies
May 30, 2006
I'm viewing reports on a VB.net form using CrystalReportViewer. Once a report is opened, the Access database that is used within the report is locked (i.e., the Access MDB file can't be deleted). Even after the report is closed, the database stays locked until the VB.net app "ends". This is a problem because I want to be able to delete the MDB file at some point while running the app and can't. The VB.net app starts by opening a form named "Startup". No database connection occurs here. A button is pressed using this [code]I must not be properly closing the CrystalReportViewer or the Report form.How do I close the Crystal report and unlock/release the Access database?
View 2 Replies
Aug 18, 2009
Im using the code from [URL] as a starter, most of the code is the same. the chat system works fine but on the client a added a disconnect button "clientSocket.Close()" and as soon as i click that i get errors, on the client, this is the code...
Private Sub getMessage()
For infiniteCounter = 1 To 2
[CODE]...
And this line...
serverStream.Read(inStream, 0, buffSize)
gives me "Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall."
Now im talking the server, after the client clicks disconnect or closes by task manager, looses connection, etc the server crashes and gives me.
View 5 Replies
Jul 8, 2009
Am I being dense here? StreamReader.ReadLine states that: A line is defined as a sequence of characters followed by a line feed (" "), a carriage return (" ") or a carriage return immediately followed by a line feed (" ")
[Code]...
View 1 Replies
Jan 21, 2011
I have created my site using ASP.NET Personal Starter Kits 3.5. I use Visual Studio 2008 only . .with its built-in SQL Server (2005 Express) ... my database in App_Data is ASPNETDB.MDF ...I have created some of my tables also ....in ASPNETDB ..In my local PC the site was running fine ...But when I publish my site on production server it doesn't work and shows the following error
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
[code].....
View 2 Replies
Nov 2, 2011
I have developed a VB.NET program using a strongly typed dataset. This dataset has its connection to a SQL Server 2008 R2. The software should now be additionally used offline. The database should be exported to a *.sdf database. If no connection to the SQL server is produced, the software have to try to connect to the *.sdf database.I would like to achieve:
1. Export the data in the SQL Server 2008 R2 database to a local *.sdf file.
2. This *.sdf file has to work as an alternate connection string in the strongly typed dataset.
View 1 Replies
Jan 17, 2009
It is possible to disconnect an IP in a port? I have a MMORPG server, and I need kick bad players using IP of this player.
View 2 Replies
Dec 7, 2010
How can I write a connection string? I has four different computer that can be connect via ethernet.How can I maintain a inserting data if to computer insert on same table at a single time..??
View 1 Replies
Aug 27, 2010
I am currently working on a messenger client that connects to a server then back to the clients for full chat room support.I have it operational however when you close the client before connecting to server it closes normal, if you close the client after you have connected to the server then the client dissapears but it is still running in processes. To make it worse if you close the process it then kills the server.What I need is a disconect button code so it will stop crashing it.Here is my code Client:
Imports System.Net.Sockets
Imports System.Text
Public Class Form1[code]......
View 4 Replies
Sep 5, 2011
For an answer to this questions I've been looking years from now, then I couldnt find it and now it's complicated. I am working on a project to fully manage a computer's connection, it can check IP, change it, etc. But, I really, really need a function to sucessfully connect/disconnect a PC from the ineternet without promps or other screens, IPCONFIG and DHCP command aren't useful!, im exploring RAS but couldnt come to anything yet
View 1 Replies
Nov 21, 2011
I have a PC with four LCD monitors attached, but often I leave it unattended and need only one monitor running. I've set up power strips so that I can flip one switch on a power strip to turn on or off the other three monitors. The problem is, when I turn off the other three monitors, the computer makes the disconnect sound every few seconds. you can go into Control Panel->Display->Change display settings, and under 'Multiple displays' disconnect the monitors you are not using, and them reconnect them when you need them again. However, this is time consuming to do manually.can I program this in VB .Net, i.e. is there a Class or some registry keys that I can use to connect or disconnect monitors the same way as through the Control Panel?
View 4 Replies
Aug 6, 2009
I want to disconnect to the internet. And i tryed Process.Start("ipconfig.exe", "/release") I was told this in another thread but its not working
View 5 Replies
Jun 23, 2010
Lets assume that I have a game server in my computer.
I download a compiled game, server/client side.
The player starts the game and it keep sending and receiving data from the server.
Lets assume now, that I think that the player is using some bug and winning all the rounds. How can i disconnect his IP from the server port? I have seen some people using some kind of DLL to do the job. Its something like iphlpapi.dll ... i dont remember well.
View 11 Replies
Feb 29, 2012
I am tring to make the below application work with SQL Server 2005 Database Currently it works for test.mdb, which is in the same folder with the application. How shoud I modify the MapPath to work with SQL Server.
[Code]...
View 1 Replies
Feb 28, 2010
i have a app in visual basic mobile 2008, so i finish but now i need to tranfer the data generate in the in the app mobile to data base in sql server 2008.
View 1 Replies
Jul 29, 2009
How can I detect when a client disconnects from the TcpListener ?
Each of my clients is handled in a separate thread.
View 1 Replies
Oct 16, 2009
I'm writing a little application that needs to detect when a USB Mouse is Connected and Disconnected. I am running into a dead end when trying to determine the best way detect this. I have tried WMI and WmdProc but I think I am hitting a mental block trying to figure out the best option.best way to listen for the connection and disconnection of a USB mouse?
View 4 Replies
Feb 10, 2010
I access directory from local network in my application.[code]my application is continues running. but sometime network is disconnect for a second and then automatically reconnect. so execution of application is stop with error in message box that path could not found.
View 1 Replies
Apr 10, 2010
I'm trying to make a chat room that when the user connects hes added to a listview. Im having trouble on how would i remove that client when the user disconnects.
I understand that you can do ListView1.Item.RemoveAt(Sender) but that would not work because RemoveAt only accepts integers.
View 3 Replies
May 17, 2005
I'm using the chat program provided in the 101 examples kit, and have modified it a bit to suit an app i'm fooling around with. I have come across a problem...
When the client side crashes, the server side doesnt realize that the connection has been lost. Is there any way for the server to poll its clients table to figure out which streams are still open?
View 1 Replies
Mar 18, 2010
I'm trying to create a program that will disconnect/connect you from the internet.Example:When I press F10, I get disconnected from the internet. When I press F11 It connects me to the internet.
View 4 Replies
Feb 12, 2012
I am trying to create an IP disconnector. This is part from a template that I took that creates a TCPtable. I was trying to add a disconnecting function.[code]
View 1 Replies
Jan 13, 2010
I have a VPN connection set up on my computer. I am trying to make a button in my VB.NET program to connect/disconnect to/from the VPN connection. I have tried making a shortcut to the VPN on my desktop and calling it with the Shell method but I get an error saying file not found. I have also added the shortcut extension ".lnk" and still have the same error.
[Code]...
View 2 Replies
Aug 5, 2009
Is there anyway that i can get a program to disconnect the user from there internet that they are currently connected to?
View 21 Replies
Aug 24, 2010
I am working on a code for a chat client/server and I have it all working, I can connect and chat locally and global. The problem I am having is that when someone just hits the X in the corner to exit it crashes my server as well as the fact that if someone wants to they can make their username the same as someone elses.
[Code]...
View 5 Replies
Mar 29, 2011
I am thinking about creating a program that when a browser (such as IE) opens it will turn my connection to the internet on, and when the browser is closed it will disable my connection. What type of things do I need read upon in order to accomplish something of this nature?
View 2 Replies
