I am attempting to connect to Microsoft SQL Server 2008 R2 from within Microsoft Visual Studio 2010. My connection string is as follows:

connection = New SqlConnection("Server=localhost;Database=greenapplication;User ID=WindowsID;Password=WindowsPassword")

I keep getting this exception: System.Data.SqlClient.SqlException:

Login failed for user 'WindowsID'.

What am I doing wrong? Are there certain permissions that I have to set up?