Error while connecting asp.net web application with sql server 2005

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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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

Posted 4-Feb-12 2:53am

bobtins

Updated 28-Jun-12 23:53pm

Vani Kulkarni

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bbirajdar 4-Feb-12 11:09am

Your connection string is wrong....

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OriginalGriff · Answer 1 · 2012-02-04T03:27:00

From the info you have given us, we can't be sure.
You need to look at your connection string, probably, and make sure that it points to a valis SQL server instance, that hosts your database.

Try setting up a connection in VS with the Server Explorer pane:
1) Open Server Explorer.
2) Right click "Data connections" and select "Add connection"
3) In the dialog that follows, select your DataSource, and database, specify the security info, and press the "Test connection" button.
4) When the connection works, press "OK"
5) highlight your database in the Server Explorer pane, and look at the Properties pane. A working example of the connection string will be shown, which you can copy and paste into your app or config file.

bbirajdar · Answer 2 · 2012-02-04T21:19:00

Your connection string is wrong.

Create a connection string with these steps:

1. create a file with any name but 'udl' as extension
2. Double click the file and follow the wizard.
3. Select 'Microsoft OLEDB Provider for SQL Server'
4. In 'Connection' tab, select the database , enter sql server credentials and click 'test connection ' button.
5. Open the .udl file in notepad. It will contain the connection string. Use this in your config files

dharan1990 · Answer 3 · 2012-06-28T23:50:00

Solution 3

http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/[^]

Posted 28-Jun-12 23:50pm

dharan1990

Bojjaiah · Answer 4 · 2012-06-28T23:57:00

Solution 4

refere this site

Connection String

Posted 28-Jun-12 23:57pm

Bojjaiah

Error while connecting asp.net web application with sql server 2005

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