public void StartUp()
        {
            cnxStringSetting1 = new ConnectionStringSettings("MyCnxString",
                "Data Source=ServerName;Initial Catalog=DataBaseName;Integrated Security=SSPI;"
                , "System.Data.SqlClient");

            cnxStringSetting2 = new ConnectionStringSettings("MyCnxStringTest",
                "Data Source=ServerName;Initial Catalog=DataBaseName;Integrated Security=SSPI;"
                , "System.Data.SqlClient");

            // Create an set of ConnectionString
            var cnxString = ConfigurationManager.ConnectionStrings;
            var field = typeof(ConfigurationElementCollection).GetField("bReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);
            field.SetValue(cnxString, false);
            
            cnxString.Clear();
            cnxString.Add(cnxStringSetting1);
            cnxString.Add(cnxStringSetting2);
            cnxStringWrapper = new ConnectionStringSettingsCollectionWrapper(cnxString);
        }
        public void StartUp()
        {
            cnxStringSetting1 = new ConnectionStringSettings("MyCnxString",
                                                             "Data Source=ServerName;Initial Catalog=DataBaseName;Integrated Security=SSPI;"
                                                             , "System.Data.SqlClient");

            cnxStringSetting2 = new ConnectionStringSettings("MyCnxStringTest",
                                                             "Data Source=ServerName;Initial Catalog=DataBaseName;Integrated Security=SSPI;"
                                                             , "System.Data.SqlClient");

            // Create an set of ConnectionString
            var cnxString = ConfigurationManager.ConnectionStrings;
            var field     = typeof(ConfigurationElementCollection).GetField("bReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);

            field.SetValue(cnxString, false);

            cnxString.Clear();
            cnxString.Add(cnxStringSetting1);
            cnxString.Add(cnxStringSetting2);
            cnxStringWrapper = new ConnectionStringSettingsCollectionWrapper(cnxString);
        }