SQL Server Express connection string

Question

I'm pretty new to this so bear with me.. I'm trying to create a connection string in an app.config It doesn't work. I get an error server not found or accessible. I'm trying to connect to my database on my local with Sql Express

Rishi Goenka · Answer

I think you can use the following Code to create the connection with your sql database You should also inherit System.Data.SqlClient in your code file.

L Van · Answer

I figured it out Thanks!

L Van · Answer

System.ArgumentException: Keyword not supported 'lens\SQLEXPRES;initial catalog'

L Van · Answer

I get an error on this now. SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings[ConnectionString1].ConnectionString);