// TODO: Put strings into the resources.
//
public static MetadataPropertyHandle <TMetadata, TPropertyValue> EnsureValid <TMetadata, TPropertyValue>(this MetadataPropertyHandle <TMetadata, TPropertyValue> hnd, ValueValidator <TPropertyValue> validator)
where TMetadata : class, IMetadata
{
//
hnd.EnsureHandleValid();
validator.EnsureNotNull(nameof(validator));
//
if (hnd.PropertyValue != null)
{
bool validationResult;
string validationErrorMessage;
try {
validationResult =
validator(
value: hnd.PropertyValue,
errorMessage: out validationErrorMessage);
}
catch (Exception firstException) {
throw
new MetadataValidationException(
message: $"Ошибка валидации свойства '{hnd.PropertyName}'.",
innerException: firstException,
metadata: hnd.Metadata);
}
if (!validationResult)
{
throw
new MetadataValidationException(
message: $"Валидация свойства '{hnd.PropertyName}' выявила ошибку(-и).{Environment.NewLine}{validationErrorMessage}",
metadata: hnd.Metadata);
}
}
//
return(hnd);
}