protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value == null)
{
return(ValidationResult.Success);
}
if (!IsCollection)
{
if (!IsValidExtension(value as IFormFile))
{
return(new ValidationResult(ValidatorMessages.FileExtensionsValidatorMessage(extensions)));
}
}
else
{
var files = value as List <IFormFile>;
foreach (var file in files)
{
if (!IsValidExtension(file))
{
return(new ValidationResult(ValidatorMessages.FileExtensionsValidatorMessage(extensions)));
}
}
}
return(ValidationResult.Success);
}
