protected override ModelMetadata CreateMetadata(IEnumerable <Attribute> attributes, Type containerType, Func <object> modelAccessor, Type modelType, string propertyName)
{
foreach (var attr in attributes.Where(c => c is ValidationAttribute && c != null).ToList())
{
var langKey = ((ValidationAttribute)attr).ErrorMessage;
var key = $"{containerType.FullName}_{propertyName}_{attr.GetType().Name}";
if (!string.IsNullOrWhiteSpace(langKey))
{
((ValidationAttribute)attr).ErrorMessage = LanguageHelper.GetKey(PerformanceHelper.SetOrGet(key, langKey));
}
}
return(base.CreateMetadata(attributes, containerType, modelAccessor, modelType, propertyName));
}