Using Directive

[rachS25]

Hello, I am currently working on a project for my degree using

asp.net, C# and Sql. The problem I am having is with my connection.cs

file that I have created, the code I have is as follows:

using System;
using System.Configuration;
using System.Linq;
using System.Data.Linq;
using System.Xml;
using School.SchoolCore.Core.Domain;
using School.SchoolCore.Properties;
using StructureMap;

namespace School.SchoolCore.Core.DataAccess.Impl
{
    public class Connection
    {
        public SchoolDataContext GetContext()
        {
            string connString = "";
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load("ConnectionStringToUse.xml");

                XmlNodeList xnl = doc.GetElementsByTagName("environment");
                XmlElement xe = (XmlElement) xnl[0];

                switch (xe.InnerText.ToString().ToLower())
                {
                    case "local":
                        connString = Settings.Default.SchoolConnectionStringLocal;
                        break;

                    case "development":
                        connString = Settings.Default.SchoolConnectionStringDevelopment;
                        break;

                    case "production":
                        connString = Settings.Default.SchoolConnectionStringProduction;
                        break;

                    default:
                        throw new Exception("No connection string defined in app.config!");
                }
            }
            catch
            {
                connString = Settings.Default.SchoolConnectionStringLocal;
            }

            SchoolDataContext fdc = new SchoolDataContext(connString);
            return fdc;
        }
    }
}

I think the problem is that the using directives are not all being used as they should. I have resharper on visual studio and it is saying that these three directives:

using System.Configuration;
using System.Linq;
using System.Data.Linq;

are not required and can be removed from code. however I think because it is not actually using.sytem.linq it is not recognising my connString.

I'm relativly new to asp.net and C# so apologise if this all sounds like gobble d goop.

I would really appreciate any help offered.

many thanks

[catherine sea]

however I think because it is not actually using.sytem.linq it is not recognising my connString.

Did you do some tests to verify whether it's recognizing your connString?

Cheers,

[rachS25]

The problem actually appears to be that Visual Studio is not recognising one of my assembly references