/// <summary>
        /// Gets the validation errors for a specified property or for the entire entity.
        /// </summary>
        /// <param name="propertyName">
        /// The name of the property to retrieve validation errors for; or <see cref="String.Empty"/>,
        /// to retrieve entity-level errors.
        /// </param>
        /// <returns>The validation errors for the property or entity.</returns>
        public override IEnumerable GetErrors(string propertyName)
        {
            string sharedPropertyName;

            if (propertyName != null && SharedPropertiesMapping.TryGetKey(propertyName, out sharedPropertyName))
            {
                return(SharedConfiguration.GetErrors(sharedPropertyName));
            }

            return(base.GetErrors(propertyName));
        }