private void link_Click(object sender, System.EventArgs e)
{
OperationResult objOperationResult = new OperationResult();
LinkButton senderCtrl = (LinkButton)sender;
string path;
path = Server.MapPath("files/" + senderCtrl.Text);
var multimediaFile = objPacientBL.GetMultimediaFileById(ref objOperationResult, senderCtrl.ID);
File.WriteAllBytes(path, multimediaFile.ByteArrayFile);
Download(senderCtrl.Text, "files/" + senderCtrl.Text);
}