Enums and inheritance in .Net

In one of my current projects I had the following code (I simplified the code a bit):public string ConnectionString{    get    {        switch(this.Importer)        {            case Importer.SqlServer:                return "Server=localhost;Database=Northwind";            case Importer.SqlServerOleDb:                return"Provider=SQLOLEDB;Data Source=localhost;Initial Catalog=Northwind";