diff --git a/UserClass/AsyncTcpServer.cs b/UserClass/AsyncTcpServer.cs
index 0f245c7..edc714c 100644
--- a/UserClass/AsyncTcpServer.cs
+++ b/UserClass/AsyncTcpServer.cs
@@ -442,7 +442,6 @@ namespace DyeingComputer.UserClass
                             SQLiteHelpers.Update("Dyelot", Product_data, "Dyelot ='" + Dyelot_dat.GetValue("Dyelot")
                                 + "' AND Step ='" + Dyelot_dat.GetValue("Step") + "' AND ProductCode='" +
                                 Dyelot_dat.GetValue("ProductCode") + "'", null);
-                            Product_data.Clear();
                             MainWindowViewModel.Dyelot_dat = SQLiteHelpers.ExecuteDataSet(
                                 "select * from Dyelot where WorkOrder = '" +
                                 MainWindowViewModel.WorkNumder + "'", null).Tables[0];