small things

StockDAL/StockRepository.cs

@@ -44,7 +44,7 @@ namespace StockDAL
         {
             using var context = new StockContext();
             var output = (from stk in context.Stocks
-                          where stk.SoldDate == null
+                          where stk.SoldDate == null || stk.ActValue > 0
                           select stk).ToList();
             return output;
         }