public FileResult Download(long fileId)
{
var oFileToDownload = objDoctorRepo.GetDoctorAppointmentFile(fileId);
string fileName = oFileToDownload.FileName + ".png";
string contentType = "image/png";
//switch (Path.GetExtension(oFileToDownload.FileName).Trim('.').ToLower())
//{
// case "txt":
// contentType = "text/plain";
// break;
// case "pdf":
// contentType = "application/pdf";
// break;
// case "docx":
// contentType = "application/docx";
// break;
// case "csv":
// contentType = "text/csv";
// break;
// case "jpg":
// contentType = "image/jpeg";
// break;
// case "png":
// contentType = "image/png";
// break;
// default:
// contentType = "application/binary";
// break;
//}
byte[] filebytearray = null;
var retBase64 = oFileToDownload.fileContent.Substring(oFileToDownload.fileContent.IndexOf("base64,") + 7);
filebytearray = System.Convert.FromBase64String(retBase64);
return(File(filebytearray, contentType, fileName));
}