序列化和反序列化，异步调用web/wcf/函数

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        //xml序列化        public static string Seria(DataSet ds)        {            XmlSerializer serializer = new XmlSerializer(typeof(DataSet));            StringBuilder sb = new StringBuilder();            XmlWriter writer = XmlWriter.Create(sb);            serializer.Serialize(writer, ds);            return sb.ToString();        }        //xml反序列化        public static DataSet DeSeria(string sb)        {            XmlSerializer serializer = new XmlSerializer(typeof(DataSet));            StringReader sr = new StringReader(sb);            XmlReader xr = XmlReader.Create(sr);            DataSet ds = (DataSet)serializer.Deserialize(xr);            return ds;        }        public static string Seria<T>(T ds)        {            XmlSerializer serializer = new XmlSerializer(typeof(T));            StringBuilder sb = new StringBuilder();            XmlWriter writer = XmlWriter.Create(sb);            serializer.Serialize(writer, ds);            return sb.ToString();        }        //xml反序列化        public static T DeSeria<T>(string sb)        {            XmlSerializer serializer = new XmlSerializer(typeof(T));            StringReader sr = new StringReader(sb);            XmlReader xr = XmlReader.Create(sr);            T ds = (T)serializer.Deserialize(xr);            return ds;        }

核心测试代码：

        private void butCallWebservice1_Click(object sender, EventArgs e)        {            ServiceReference1.WebService1SoapClient wc = new ServiceReference1.WebService1SoapClient();            string ret = wc.HelloWorld();            MessageBox.Show("web服务返回值："+ret);        }        public int add(int a, int b)        {            System.Threading.Thread.Sleep(4000);//耗时的操作            return a + b;        }        public delegate int defun(int a,int b);//定义一个委托        public void f2()        {            MessageBox.Show(DateTime.Now.ToString());        }        private void btnTestseria_Click(object sender, EventArgs e)        {            DataSet ds = new DataSet();            DataTable dt = new DataTable();            dt.Columns.Add("id",typeof(string));            dt.Columns.Add("name", typeof(string));            dt.Columns.Add("age", typeof(int));            DataRow dr = dt.NewRow();            dr["id"] = "1";            dr["name"] = "testname1";            dr["age"] = 22;            dt.Rows.Add(dr);            ds.Tables.Add(dt);           string s= Common.Common.Seria(ds);//DataSet序列化和反序列化           DataSet dsde = Common.Common.DeSeria(s);           MessageBox.Show(s+"\n "+ds.Tables[0].Rows.Count);            List<Student> list=new List<Student>();            list.Add(new Student("2","testname2",25));            string s2 = Common.Common.Seria<List<Student>>(list);            List<Student> listde = Common.Common.DeSeria<List<Student>>(s2);            MessageBox.Show(s2+" \n "+listde.Count);//List<对象>序列化和反序列化        }        private void btnCall1_Click(object sender, EventArgs e)        {            f2();        }        private void btnAsynCall2_Click(object sender, EventArgs e)        {            //异步调用            defun objDe = new defun(add);            IAsyncResult Iasyn = objDe.BeginInvoke(12, 34, null, null);            int re = objDe.EndInvoke(Iasyn);//这里会阻塞线程            MessageBox.Show("异步调用返回结果：" + re);        }        defun objDe2 = null;        bool isCalling = false;        /// <summary>        /// 自动回调方式调用函数        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void btnAsynCall3_Click(object sender, EventArgs e)        {            if (isCalling == false)            {                objDe2 = new defun(add);                AsyncCallback AsynCallback = new AsyncCallback(AsynCallbackfun);                isCalling = true;                objDe2.BeginInvoke(23, 45, AsynCallback, null);//完成后自动触发回调函数，不会阻塞线程            }        }        void AsynCallbackfun(IAsyncResult Iasy)//异步回调函数        {            if (objDe2 != null)            {                int re = objDe2.EndInvoke(Iasy);//这里会阻塞线程                isCalling = false;                MessageBox.Show("异步调用返回结果：" + re);            }        }        void AsynCallbackfun2(IAsyncResult Iasy)//异步回调函数        {            if (objService != null)            {                string re = objService.EndGetData(Iasy);//这里会阻塞线程                isCalling2 = false;                MessageBox.Show("Wcf异步调用返回结果：" + re);            }        }        ServiceReference2.WcfService2Client objService = null;        bool isCalling2 = false;        /// <summary>        /// 自动回调方法调用WCF/Web 服务        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void btnWcfAsynCall1_Click(object sender, EventArgs e)        {            if (isCalling2 == false)            {                objService = new ServiceReference2.WcfService2Client();                AsyncCallback AsynCallback = new AsyncCallback(AsynCallbackfun2);                isCalling2 = true;                //添加引用时在“高级”中选择“允许生成异步操作”                //或者在已有的服务引用上“配置服务引用”                objService.BeginGetData                    (AsynCallback, null);            }        }

示例源代码下载：http://download.csdn.net/detail/pukuimin1226/6953713

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