use sql in web service

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i want to do some sql code run in my webservice in c#

the code is just

C#

[WebMethod]

 public void GetCustomers() 
    {
         SqlConnection MyConn = new SqlConnection("Data Source=./SQLEXPRESS;AttachDbFilename=C:/Documents and Settings/Administrator/My Documents/Visual Studio 2008/Projects/WebService2/WebService2/App_Data/Database1.mdf;Integrated Security=True;User Instance=True");  
        MyConn.Open();
          SqlCommand cmd = new SqlCommand();   
       cmd.Connection = MyConn;   
       cmd.CommandText = "delete from t1 where name='1'"; 

        cmd.ExecuteNonQuery();    
 }

now i got error like

System.Data.SqlClient.SqlException: 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 27-Jan-12 0:14am

Member 8597777

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Rajesh Anuhya · Accepted Answer · 2012-01-27T00:19:00

Solution 2

try with AttachDbFilename property.
see here
Link[^]

Thanks
--RA

Posted 27-Jan-12 0:19am

Rajesh Anuhya

Comments

thatraja 27-Jan-12 10:58am

5!

Rajesh Anuhya 27-Jan-12 21:35pm

Thanks Raja
--RA

Abhinav S · Accepted Answer · 2012-01-27T00:19:00

Solution 1

In ASP.Net, you should not provide an absolute address string for your database.
Have a look here[^] at how you would be setting up a database connection in ASP.Net.
This[^] describes using connection strings in the config file and should help you get started as well.

Posted 27-Jan-12 0:19am

Abhinav S

Comments

thatraja 27-Jan-12 10:58am

5!

Abhinav S 27-Jan-12 10:59am

Thank you.