public void CreateClincalDB()
 {
     using (var ctx = new ClinicalContext())
     {
         ctx.Database.CreateIfNotExists();
     }
 }
 protected virtual void Dispose(bool disposing)
 {
     if (disposing)
     {
         if (ctx != null)
         {
             ctx.Dispose();
             ctx = null;
         }
     }
 }
 public ClinicalDAL(ClinicalContext _ctx)
 {
     if (_ctx == null)
     {
         ctx = new ClinicalContext();
     }
     else
     {
         ctx = _ctx;
     }
 }
 public ClinicalDAL()
 {
     ctx = new ClinicalContext();
 }