Question

Code

public class Global : System.Web.HttpApplication
{

    public const string globalServernameSHA = string.Empty;
    public static string globalSqlConnection = string.Empty;

    protected void Application_Start(object sender, EventArgs e)
    {
        globalServernameSHA = ConfigurationManager.AppSettings["varServernameSHA"].ToString();
        globalSqlConnection = ConfigurationManager.ConnectionStrings["varConnectionString"].ToString();
    }

These variables should be read just once and definitely should be read only.
They have to be available for whole project and therefore should be public.

Is there a way how to define const in code like this ?

Thanks

Answer 1

Declare them as readonly and move initialization to constructor:

public class Global : System.Web.HttpApplication
{

    public readonly string globalServernameSHA;
    public readonly string globalSqlConnection;

    public Global()
    {
        globalServernameSHA = ConfigurationManager.AppSettings["varServernameSHA"].ToString();
        globalSqlConnection = ConfigurationManager.ConnectionStrings["varConnectionString"].ToString();
    }