bug.

ButcherFactory.Form/CarcassTakeOut_/CarcassTakeOutForm.cs

@@ -175,7 +175,7 @@ namespace ButcherFactory.CarcassTakeOut_
 
     private void submitBtn_Click(object sender, EventArgs e)
     {
-      var arrs = needSubmitedList.Where(x => x.Weight.HasValue);
+      var arrs = needSubmitedList.Where(x => x.Weight.HasValue).ToList();
       CarcassTakeOutBL.Submit(arrs.Select(x => x.ID));
       foreach (var item in arrs)
       {