protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value == null)
{
return(ValidationResult.Success);
}
IFormFile file = value as IFormFile;
fileHelper = (IFileHelper)validationContext.GetService(typeof(IFileHelper));
bool IsImage = uploadedType == FileUploadedType.Image ? true : false;
if (IsImage)
{
if (!fileHelper.CheckIfImageFile(file))
{
return(new ValidationResult(FormatErrorMessage(validationContext.DisplayName)));
}
}
else if (!mimeTypes.Contains(file?.ContentType))
{
return(new ValidationResult(FormatErrorMessage(validationContext.DisplayName)));
}
return(ValidationResult.Success);
}
