Connect Program Via Network To Database
Feb 7, 2010I make my Program to Connect via Network to Database..[code]
View 5 RepliesI make my Program to Connect via Network to Database..[code]
View 5 RepliesI'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.
I want to connect an access dabase from a central server using vb.net 2005.
View 1 RepliesI 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 RepliesI'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 RepliesI 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 RepliesI'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 RepliesFailed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed...
someone gave me a link to changing the database connection using an instance. When I tried to type what the instance of my SQL server 2008 I must have put the wrong information into the database connection instance.
What is the database connection instance called for SQL server 2008?
Giving out a complete tutorial on the step by step way a connecting to a database using VB?
View 2 Repliesevery time i try to establish a data connection between vb 2010 and sql 2005 i get the following error message QuoteA 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 connection .(Provider:SQL network interface,error:26
View 6 RepliesI have a windows application written in VB.net. After finishing it I'll setup the program in more than one pc. I want to connect the program in all PCs to one database in another PC using Microsoft Access, and I also want to limit the level of access of the users to the database in my program.
View 2 RepliesI am wondering if there is a public database where you can test your SQL and can connect to? i would like to test a connection to a database using vb.net, and would like to run a few sql statements.
View 3 RepliesI have some deprecated code in visual basic when connecting to an oracle database. I am using a OracleDataAdapter but it says that this has been deprecated. Does anyone know what the new supported code is to connect to a database?
View 2 RepliesWell for some reason when i try to add a reference so that the oracle database can connect to the VB.NET 2010 program.In other words it shouldn't highlight certain code as if the database is not connected.Here is a clear summery as best as i can say what the problem is.
1. Connection from Visual Studio 2010 to Oracle plus server
2. Adding References will not be allowed for some reason.
3. The code (See example below on what it might be) is still highlighted even when i added the references several times.
I'll show just a small snip of the code coz it's more or less the same on most of the forms if i want to either update, delete, add or amend to the database. I'll show a few screenshots so to be clearer.I've tried by even looking over the notes and followed step by step and nothing works.Since i am not registered in this module this time i can't seek help of the lecturer so don't bother telling me to go and ask my teacher I've pestered the supervisor that i'd have to present this project to and she hasn't replied to my email at all so i have no clue what else to do in the matter.
I'm working on a program tthat will connect to a database and display some data. But everytime i press a button to connect my program to the database i keep getting this error message Cannot open database "Northwind" requested by the login. The login failed. Login failed for user 'Aron-PCAron'. Now the reason why i'm so stumped about this is because when i connect to SQL Server 2005 manually, the login works just fine! This is the connect string i've got running in my prgoram
[Code]...
I am building a windows program that I need to link to add and pull information from an access 2007 database. I really so not want to use SQL if at all possible.
View 3 RepliesI'm using crystal reports 9, visual studio 2008, and oracle 9i in this project I'm doing. My crystal reports pull data from an oracle database, and are displayed on a CrystalReportViewer on a windows form. How would I make this connection using vb.net code?[code]...
View 1 Replieshow can i connect handpunch with vb.net through network
View 2 RepliesI 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.
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
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?
Using VB.NET how do I connect to an available wireless network. I have been able to list all the available networks.
View 1 RepliesI'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]...
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 RepliesAbout 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)
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]....
When program runs, it automatically connecting to pppoe or other like networks... How can i do that???
View 1 RepliesI 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.
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] .....
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