Connect To A Database Over A Network?

Feb 3, 2010

I'm just getting started with VB.NET and SQL Server 2005. I have VS2008 installed on my machine. My SQL Server is in a domain that my machine is not a part of. Here's my code that I'm using to establish a connection:

Dim conn As New SqlConnection
conn.ConnectionString = "Server=SQLServer.hbug.lan;Initial Catalog=HUGRegistration;Trusted_Connection=True"

This code is part of a console app. that I'm using as a test. I'm just trying to set up a simple connection and then read data from the database. When I run this console app. in VS, the program hangs for a few seconds and then I get an error "SQLServerProvider has stopped working". My options are Debug or Close program. When I choose Close program, then an error pops up in my console window "Error: Unahandled Exception: System.NullReferenceException: Object reference not set to an instance of an object. I assume this error is spawning from not connecting to the database properly.

View 8 Replies


ADVERTISEMENT

Connect Program Via Network To Database

Feb 7, 2010

I make my Program to Connect via Network to Database..[code]

View 5 Replies

Connect MS Access Database From A Network In 2005?

Jul 6, 2009

I want to connect an access dabase from a central server using vb.net 2005.

View 1 Replies

Distributing Database Application But Could Not Connect To Sql Server From Other PC On Same Network

Jul 14, 2010

I am using Microsoft visual basic 2010 and SQL server 2008.I develop a small database application and it run well on my pc.I built and distributed the application to other pc on the same network, but when I run the application from other pc I got error message like this:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections.(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)[code]

View 2 Replies

VS 2008 Connect To A Database On A Big Corperate Network (access Db)

Mar 3, 2010

I'm trying to connect to a database on a big corperate network (access db). I can not load my application and DB on a shared network drive as it does not have the correct permissions. How else can I try connecting to a db of some sort and allow users to insert/edit/delete rows? as it's a network drive I can not install a DB such as SQL Server on it.

View 4 Replies

Database Backend (.MDB) Copied To Project Directory - Connect To Network Drive

Apr 20, 2009

I'm a bit new to VB.NET and I have a database which I want to connect to an access backend stored on a network drive for multiple users. I can view the Database in the solution explorer and the directory defaults to the project folder. How can I specify the directory to pull from my network drive? VS has copied this datasource and imported it locally which is fine for testing, but i need the file accessible for multiple users. Is this something I do when publishing?

View 3 Replies

Connect Handpunch With .net Through Network?

Feb 10, 2009

how can i connect handpunch with vb.net through network

View 2 Replies

Connect Network Camera With VB?

Nov 9, 2010

I doing a school work where I need to make my Network cam to show in VB

Preferable In a Picture box because after that there need to be done some motion detection.

But thats work for after. First I need to make My ip cam show op on my screen.

The way I can access my cam is by going to 192.168.168.54.

I also saw something like the Icam class but this works for normal web cams.

But is there something like the Icam Class for a Network camera.

View 6 Replies

Connect To A Map Network Drive?

Aug 30, 2010

I Have a batch file in a server in my network. I maped that shared folder (that batch file exist in it) every time that I want to run that batch file first I should have to connect to that network drive(with username and password) How can I do it in my code . I want to connect to that network drive by code in my form_load. I test codes below but it dose'nt work.

AppDomain.CurrentDomain.SetPrincipalPolicy(Princip alPolicy.WindowsPrincipal)
Dim idnt As New WindowsIdentity(username, password)
Dim context As WindowsImpersonationContext = idnt.Impersonate

View 3 Replies

Connect To A Network Share?

Feb 12, 2011

How can I connect to a network share without using System.Diagnostics.Process.Start?

I need to connect to a network share and get feedback if it already exists.

Can I use some kind of API?

View 1 Replies

Connect To An Available Wireless Network Using .NET?

Apr 24, 2011

Using VB.NET how do I connect to an available wireless network. I have been able to list all the available networks.

View 1 Replies

Connect To IP Camera From The Network With VB?

Aug 16, 2006

I've just installed an IP Camera in our network and started to fool around with it. The software supplied by the camera itself is written in Delphi and pretty much doesn't do much. I was wondering if there was a way to connect to this Camera from the network with VB?

[Code]...

View 6 Replies

IDE :: Connect To Network Share

Oct 5, 2010

my old vb6 "WNetAddConnection2 Lib "mpr.dll" no longer work in vb.net 2010. at run time i get "PinvokeStackImbalance was detected".How can connect to network share ?

View 2 Replies

Error Connect Again - Connecting Through Lan Network With Sql

May 28, 2009

About connecting through lan network with sql. i try all ways but not yet. I depended on another for this by Teamviewer4.0 but he only used sql 2000 and he didn't modify. In last thread . JM advise me " I dont have to change information at client and i only connect string to correct server name but i tried and it is error........" created account of window for user in server ...... -> it is still error.

FINALLY. I am very tired and sad about connecting through lan .( may be using Teamviewer4.0)

View 8 Replies

Remotely Connect To Servers On A Network?

Feb 4, 2010

I am trying to remotely connect to servers on a network. However, an exception occurs and I can never connect. The code I am using to connect to the servers does work because I have had someone else test it. The exception is shown below. Is this a setting with VB or with my computer?

System.Runtime.InteropServices.COMException was caught
ErrorCode=-2147220308
HelpLink="C:Program FilesPIPCPISDK..Helppisdk.chm"
Message="The specified time is invalid "

[code]....

View 1 Replies

Automatically Network Connect Event To Pppoe?

Oct 25, 2010

When program runs, it automatically connecting to pppoe or other like networks... How can i do that???

View 1 Replies

VS 2010 Find And Connect To Wireless Network?

Dec 31, 2010

I need to know how to find wireless network and connect to it.

i also need to know how to type in the network key before connecting.

View 4 Replies

Cannot Connect To Network To Send Data Through Message Board

Nov 2, 2009

I have this codes here whereby my objective is to develop a writing network applications of programming, a means of sending data to a message board(messaging system). My problem is I couldn't connect it to the server's IP address and port num to send a data through a message board. However I could only display at Form2 txtReceive.
Text = HexConvert.Data_Asc_Hex(sData),

Whereby this code could only convert whatever data(txtSend) that is being typed in, could then convert hex decimal into a textbox(txtReceive). The final result that I would want to achieve is to be able to display the at the textbox(txtReceive) is the <"message protocol"> & <"hex message that is being typed"> & <"parity bit"> into the txtReceive box.

Form form 1, my codes are....
Imports System.Net.Sockets
Imports System.IO
Public Class Form1
Const portNo As Integer = 1234
Dim client As TcpClient
[Code] .....

View 2 Replies

Task: Auto Disconnect/connect From Home Network?

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

Remote Desktop - Modify That Program To Allow Me To Connect To Computers Not On My Network?

Jun 12, 2011

I have created a program that allows me to remotely access computers on my network (not all done by me i found some code online) however i want to modify that program to allow me to connect to computers not on my network. How can i go about doing this? My program consists of a client and a server. When the server runs it listens for the client on the client side i enter the IP address and it connects so i can send remote commands to the remote system.

View 4 Replies

VS 2008 Network App - Send Message Or Network Package To Some Of The Clients In The Network

Aug 18, 2009

Here is my idea so far: I have a bunch of computers connected in a local network. One of them is a MySQL server, one will have a vb.NET program wich will act as a "second server" and the rest will be different clients. What I want to do is that the "second server" will send out some kind of message or network package to some of the clients in the network, and they will execute a code based on what message it is, or what kind of package it is. I'll give you a simple example:

[Code]...

View 6 Replies

DB/Reporting :: Copy A Table From A Network Database To A Local Database

Mar 30, 2008

I am trying to copy a table from a network database to a local database. I used DAO and could check if the network table existed using a function that tried to assign a TableDef object to the table in question. If there was no error then I assumed that the table existed and the function returned true...Or it would error out and return false.I could then proceed with the copy or not as the case may be.I am converting the code to ADO.net and need to know how to check for a table. [code]

View 1 Replies

Connect To A Remote Network By Creating A Temporary Connection On The Fly By Using The Remote IP/Host Name?

Jan 20, 2010

Rather than use an Entry name of an existing VPN connection, is it possible to connect to a remote network by creating a temporary connection on the fly by using the remote IP/Host name, username and password?

View 6 Replies

User To Connect To SQL Database And Edit Some Of The Database Values?

Jul 2, 2011

I'm working on a tool that allows the user to connect to his SQL database and edit some of the database values.First here's a screenshot of the GUI (you can see my problem as well):

[Code]...

View 2 Replies

Accessing Database On The Network?

Dec 3, 2009

i'm using

Public con As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Tramsco\Tramsco\payroll.mdf;Integrated Security=True;User Instance=True;MultipleActiveResultSets=True")

as my connection string and when i run the .exe from the other computer to access the database on the host, it gives me this error:

An attempt to attach an auto-named database for file C:\Tramsco\Tramsco payroll.mdf failed. A database with the same name exists, or specified file cannot be Opened, or it is located on UNC share.

but when i use the computer where the program is, i can run it with no problem.

View 1 Replies

Database For Network Connection?

Nov 27, 2009

im creating a program that will connect to a database (not local).That database will be access by everyone of my officemate for our data storage.The problem is the sample for creating a database is it make use of lacol database which can only be access by single user.how connect to a database later on after my deploying my application.

Scenario1:

interface program created: DONE
User input interface created: DONE

Database created(but not yet connected to the actual application): DONE

Scenario 2:

Program Deployed :DONE

Scenario3:how can i connect to the Database i created with program i just publish/deployed?

something like that i have a command button then it will open a dialog to locate an existing database then connect to that database (ms access database or sql database created in - creating database sample).

View 1 Replies

Share One Database On A Network?

Jul 17, 2010

i want my software to share one database on a network

View 2 Replies

SQL Database Connection Via Network

Mar 11, 2010

How can I connect to sql server via network by using vb.net.

View 2 Replies

VS 2008 : How To Do A Database A Network

Mar 14, 2010

how to do a database a network? in a library system, when the student searches a book in a datagridview then, when they borrow books, they click the borrow then it borrows. Then it would reflect the students name and the book that the student borrowed in the librarian form. how is that?

View 1 Replies

Centralized Database To A Network Environment?

Jun 22, 2009

for my vb project, i have to develop a system for a network environment. it means a central database to the application. i don't know how to do that. i am hoping to do a sql database. guyz please help me to do this.if you have any tutorials or any of your advices, will help me a lot.

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved