Catel.Data.ModelBaseExtensions.GetListMessages C# (CSharp) Метод

        private static string GetListMessages(IValidationContext validationContext, ValidationResultType validationResult)
        {
            Argument.IsNotNull("validationContext", validationContext);

            var messageBuilder = new StringBuilder();

            switch (validationResult)
            {
                case ValidationResultType.Warning:
                    foreach (var field in validationContext.GetFieldWarnings())
                    {
                        messageBuilder.AppendLine("* {0}", field.Message);
                    }

                    foreach (var businessItem in validationContext.GetBusinessRuleWarnings())
                    {
                        messageBuilder.AppendLine("* {0}", businessItem.Message);
                    }
                    break;

                case ValidationResultType.Error:
                    foreach (var field in validationContext.GetFieldErrors())
                    {
                        messageBuilder.AppendLine("* {0}", field.Message);
                    }

                    foreach (var businessItem in validationContext.GetBusinessRuleErrors())
                    {
                        messageBuilder.AppendLine("* {0}", businessItem.Message);
                    }
                    break;

                default:
                    throw new ArgumentOutOfRangeException("validationResult");
            }

            return messageBuilder.ToString();
        }