Merge branch 'master' of http://www.scserverddns.top:13000/sc/DyeingComputer

View/WorkOrderView.xaml.cs

@@ -156,10 +156,10 @@ namespace DyeingComputer.View
             SQLiteHelpers = new SQLiteHelper(DBAddress); //数据库连接路径
             SQLiteHelpers.Open();  //打开数据库
             string sql_script = "select * from ProgramName where  ProgramID = '" + Process_id + "'";
-            int i = SQLiteHelpers.ExecuteDataSet(sql_script, null).Tables[0].Rows.Count;  //读取计划表写入缓存
+            int i = SQLiteHelpers.ExecuteDataSet(sql_script, null).Tables[0].Rows.Count;  //读取工艺表返回0工艺不存在
             SQLiteHelpers.Close();  //关闭连接
 
-            if(i == 0) 
+            if(i == 0) //工艺不存在提示
             {
                 WorkOrder_Numder = null;
                 Process_id = null;
@@ -171,6 +171,8 @@ namespace DyeingComputer.View
         private void UserControl_KeyDown(object sender, KeyEventArgs e)
         {
             if (e.Key == Key.K) 
+            {
+                if (Process_id != null)
                 {
                     MainWindowViewModel.WorkNumder = WorkOrder_Numder;
                     TechnologicalProcessView.workName = Process_id;
@@ -181,3 +183,4 @@ namespace DyeingComputer.View
             }
         }
     }
+}