diff --git a/B3ClientService.Web/Pages/B3ClientService/Reports/CarcassLossAnalyse_/CarcassLossAnalyse.cs b/B3ClientService.Web/Pages/B3ClientService/Reports/CarcassLossAnalyse_/CarcassLossAnalyse.cs
index dec55ea..37c860d 100644
--- a/B3ClientService.Web/Pages/B3ClientService/Reports/CarcassLossAnalyse_/CarcassLossAnalyse.cs
+++ b/B3ClientService.Web/Pages/B3ClientService/Reports/CarcassLossAnalyse_/CarcassLossAnalyse.cs
@@ -96,7 +96,7 @@ namespace BWP.Web.Pages.B3ClientService.Reports.CarcassLossAnalyse_
       query.Columns.Add(DQSelectColumn.Field("Goods_Name", btrk, "存货名称"));
       query.Columns.Add(DQSelectColumn.Create(DQExpression.Field(btrk, "Weight"), "入库重量"));
       query.Columns.Add(DQSelectColumn.Create(DQExpression.Subtract(DQExpression.Field(dtdj, "Weight"), DQExpression.IfNull(DQExpression.Field(btrk, "Weight"), DQExpression.Value(0))), "损耗"));
-      if (!string.IsNullOrEmpty(batchSelect.Value))
+      if (!batchSelect.IsEmpty)
         query.Where.Conditions.Add(DQCondition.EQ(btrk, "ProductBatch_ID", long.Parse(batchSelect.Value)));
       var args = new LoadArguments(query);
       args.SumColumns.Add(2);