WPF多线程出现UI卡顿，求救！！！

mylibin 2015-04-09 02:02:18

第一次用WPF，被多线程搞死了。写的代码出现了UI卡顿现象，求解救。多线程是从网上找的代码，和WInform用法，完成不同。是不是写的不对，求帮助。



int MaxID = 0;

        int MinID = 0;

        Thread oldThread;

        Thread newThread;

        DataTable all = new DataTable();

        public MainWindow()

        {

            InitializeComponent();

            //this.Title = GetApp.GetValue("Title");

            oldThread = new Thread(new ThreadStart(OldDispatcherThread));

            oldThread.IsBackground = true;

            newThread = new Thread(new ThreadStart(NewDispatcherThread));

            newThread.IsBackground = true;

        }

        

        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            //拉取当前10条数据

            bindInit();



            //获取老信息

            oldThread.Start();

            newThread.Start();

        }

        public void OldDispatcherThread()

        {

            //可以通过循环条件来控制UI的更新

            while (true)

            {

                ///线程优先级，最长超时时间，方法委托（无参方法）

                listBox1.Dispatcher.Invoke(DispatcherPriority.Normal, TimeSpan.FromSeconds(1), new Action(NextData));

                Thread.Sleep(3000);

            }

        }

        public void NewDispatcherThread()

        {

            //可以通过循环条件来控制UI的更新

            while (true)

            {

                ///线程优先级，最长超时时间，方法委托（无参方法）

                listBox1.Dispatcher.Invoke(DispatcherPriority.Normal, TimeSpan.FromSeconds(1), new Action(PreData));

                Thread.Sleep(3000);

            }

        }

        private void NextData()

        {

            bindData("info_id<" + MaxID, 2);

        }

        private void PreData()

        {

            

        }



        private void bindInit()

        {

           //执行这个方法的时候，开始出现UI卡顿现象

            string backStr = api.GetALLWLInfoData("", 10);

            if (backStr != "")

            {

                all = GetSerializable(backStr) as DataTable;

            }

            if (all != null && all.Rows.Count > 0)

            {

                MaxID = int.Parse(all.Rows[all.Rows.Count - 1]["info_id"].ToString());

                MinID = int.Parse(all.Rows[0]["info_id"].ToString());



                listBox1.DataContext = all;

            }

        }



        private void bindData(string filter,int source)

        {

            string backStr = api.GetALLWLInfoData(filter, 10);

            DataTable dt = new DataTable();

            if (backStr != "")

            {

                dt = GetSerializable(backStr) as DataTable;

            }

            if (dt != null && dt.Rows.Count > 0)

            {

                switch (source)

                {

                    case 1:

                        MinID = int.Parse(all.Rows[0]["info_id"].ToString());

                        break;

                    case 2:

                        MaxID = int.Parse(all.Rows[all.Rows.Count - 1]["info_id"].ToString());

                        foreach (DataRow dr in dt.Rows)

                            all.ImportRow(dr);

                        //没有老数据，关闭拉取老数据进程

                        if (dt.Rows.Count == 0)

                            oldThread.Abort();

                        break;

                    default:

                        break;

                }

                //listBox1.DataContext = all; 

            }

        }



        /// <summary>

        /// 对象反序列化

        /// </summary>

        /// <param name="str">序列化字符串</param>

        /// <returns></returns>

        public object GetSerializable(string str)

        {

            IFormatter formatter = new BinaryFormatter();

            byte[] buffer = Convert.FromBase64String(str);

            MemoryStream stream = new MemoryStream(buffer);

            object obj = formatter.Deserialize(stream);

            stream.Flush();

            stream.Close();



            return obj;

        }