private string ValidateResume(HttpPostedFileBase file, ICollection<string> allowedFileExtensions, int maxContentLength)
{
var errorMessage = String.Empty;
if (!file.HasFile())
{
errorMessage = String.Format("File is not specified");
return errorMessage;
}
if (file.ContentLength > maxContentLength)
{
errorMessage = String.Format("File is too large, maximum allowed is: {0} MB", (maxContentLength / 1024 / 1024));
return errorMessage;
}
if (allowedFileExtensions != null && !allowedFileExtensions.Contains(file.FileName.Substring(file.FileName.LastIndexOf('.'))))
{
errorMessage = String.Format("Please upload file of type: {0}", String.Join(", ", allowedFileExtensions));
return errorMessage;
}
return errorMessage;
}