To make sure the current user is authenticated, open Management Studio, expand the Security node, and verify that the current user is added:īefore we move on, I want to mention a couple of commonly used settings.īeing able to change the connection timeout through web.config can be very useful when deploying the same application on different environments.
The Integrated Security=True part will use the Windows user executing the program to log onto SQL Server (Windows Authentication using Integrated Security). The content of the connectionString attribute tells them which server to communicate with and the name of the database.
NET Framework Data Provider to use when communicating with the database. The providerName attribute tells users of the connection string which. There are a couple of new things to notice. The simplest SQL Server connection string looks like this: The connection string will be identical no matter if you are connecting through Entity Framework, NHibernate, or using the raw SQL connection available in. Since most questions I get about connection strings are related to SQL Server, let's start by looking at the possibilities there.
➡️ Reduce errors by 90% with elmah.io error logging and uptime monitoring ⬅️Ĭonnection strings for popular databases SQL Server Would your users appreciate fewer errors? Public DatabaseContext() : base("m圜onnection") Like Entity Framework where connection string names can be referenced when creating the context: public class DatabaseContext : DbContext Clever things happen when database vendors or ORMs built-in support for the connectionStrings element. The configuration looks similar to this: įetching the connection string is done using the ConfigurationManager class: string conn = Īt first glance, this looks like a more complicated version of ConfigurationManager.AppSettings and when used this way, it actually is. The element works a bit like appSettings where you can add one or more connection strings for your application to use on runtime. Inside the web.config file (and app.config file too), there's a root element named connectionStrings. Let me start this post by providing an example to make sure that everyone follows. So, should you keep specifying connection strings using the connectionStrings element in web.config? Stay tuned to learn everything there is to learn about the subject. The times were you would just remote desktop to production and change settings inside your ASP.NET web.config file is long gone. just telling it from my humble experience in that field.Connection strings in web.config can be both powerful and challenging. notebook from home) consider connecting to VPN first and then connect to DB from your app using private address.Īnyway, if you still want to connect using public address you might need to forward port 1433 to the machine hosting Sql server.Īgain, I'm not a network expert or anywhere close to it. If you don't have a client-server architecture and need to connect to DB from a computer that's not in LAN (e.g. Usually application server is on the same machine or same LAN as the SQL server. I'm not an networking expert, but why would you want to access SQl server using the public address ? OK, your private address is something likeĪnd by public address you mean the address of the router ? This is going to sound really stupid, I was messing around with my firewall to disable it to test, and I ran into the private IP address of the computer, I put that in as the Server Name and the Connection Works fine.ĭo I have to do something special to connect to the external IP of a computer that has a private IP? I downloaded it and put it in there but it didnt help.ĭoes anyone have any idea if it is because something might be wrong with my connection string or something else? The only thing I noticed was that I did not have the DBMSSOCN.DLL file in my windows/system32 folder. (provider:TCP Provider, error:0 - The requested name is valid, but not data of the requested type was found.)" Verify that the instance name is correct and that SQL Server is configured to allow remote connections. THe server was not found or was not accessible. "A network-related or instance-specific error occurred while establishing a connection to SQL Server.
When I do I get the following Error:įailed to open a connection to the database If I go to add a datasource to a Drop Down List, I click Add Project Source -> Select Database-> Click Next -> Select Dataset -> Click Next -> Select my connectionString(Settings) and click next.