Aqueduct.SitecoreLib.DataAccess.ValueResolvers.NullableResolver.GetBooleanValue C# (CSharp) Method

        private static object GetBooleanValue (string value)
        {
            switch (value.ToLower())
            {
                case "yes":
                case "on":
                case "true":
                case "1":
                    return true;

                case "no":
                case "off":
                case "false":
                case "0":
                    return false;

                default:
                    return null;
            }
        }