protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value is HttpPostedFileBase)
{
HttpPostedFileBase file = (HttpPostedFileBase)value;
string fileName = file.FileName;
string fileExtension = fileName.Substring(fileName.LastIndexOf(".")).ToLower();
int fileSize = file.ContentLength;
if (AllowedExtensions.Contains(fileExtension))
{
if (fileSize <= ContentLength)
{
return(ValidationResult.Success);
}
else
{
return(new ValidationResult("The Uploaded file must be less than or equal" + ContentLength / 1024 / 1024 + "MB."));
}
}
else
{
return(new ValidationResult("The Uploaded file must be of one these extensions (" + AllowedExtensions.ToString() + ")."));
}
}
else
{
return(new ValidationResult("You Should Upload File."));
}
}