Silverlight 独立存储（IsolatedStorageFile）

1.在Web中添加天气服务引用地址

http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl

2.在Web中添加Wcf服务接口IWeatherService.cs

 1 using System;

 2 using System.Collections.Generic;

 3 using System.Linq;

 4 using System.Runtime.Serialization;

 5 using System.ServiceModel;

 6 using System.Text;

 7 

 8 namespace EasySL.Web.WCF

 9 {

10     // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“IWeatherService”。

11     [ServiceContract]

12     public interface IWeatherService

13     {

14         [OperationContract]

15         string[] GetCityWeather(string CityName);

16     }

17 }

3.在Web中实现服务接口

 1 using System;

 2 using System.Collections.Generic;

 3 using System.Linq;

 4 using System.Runtime.Serialization;

 5 using System.ServiceModel;

 6 using System.Text;

 7 

 8 namespace EasySL.Web.WCF

 9 {

10     // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码、svc 和配置文件中的类名“WeatherService”。

11     // 注意: 为了启动 WCF 测试客户端以测试此服务，请在解决方案资源管理器中选择 WeatherService.svc 或 WeatherService.svc.cs，然后开始调试。

12     public class WeatherService : IWeatherService

13     {

14         public string[] GetCityWeather(string CityName)

15         {

16             ServiceRefWeather.WeatherWebServiceSoapClient client = new ServiceRefWeather.WeatherWebServiceSoapClient("WeatherWebServiceSoap");

17             string[] cityNameWeather = client.getWeatherbyCityName(CityName);

18             return cityNameWeather;

19         }

20     }

21 }

4.在client添加自己创建的Wcf服务地址、调用服务接口

/// <summary>

        /// 通过wcf获取天气数据信息

        /// </summary>

        private void InitDataWeather()

        {

            try

            {

                ServiceReference1.WeatherServiceClient client = new ServiceReference1.WeatherServiceClient();

                client.GetCityWeatherCompleted += (s, e) =>

                {

                    try

                    {

                        if (e.Error == null)

                        {

                            string[] cityWeather = new string[e.Result.Count];

                           讲e.Result结果显示在页面中就ok了，然后我们将e.Result进行数据格式处理，运用独立存储讲结果保存起来                         }

                        else

                        {

                            lbltitle1.Content = e.Error.Message;

                        }

                    }

                    catch (Exception ex)

                    {

                        lbltitle1.Content = ex.Message;

                    }



                };

                client.GetCityWeatherAsync("北京");

            }

            catch (Exception ex)

            {

                //lbltitle1.Content = ex.Message;

            }



        }    

5.将数据结果存放到本地（运用独立存储技术）

 1  private void WeatherWriterIsolatedStorageFile(string str)

 2         {

 3             IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication();

 4             if (isf.FileExists("Weather.txt"))

 5             {

 6                 isf.DeleteFile("Weather.txt");

 7             }

 8             using (Stream stream = isf.CreateFile("Weather.txt"))

 9             {

10                 using (StreamWriter writer = new StreamWriter(stream))

11                 {

12                     writer.WriteLine(str);

13                 }

14             }

15         }

6.读取存放的数据结果（独立存储）

 private void ReaderWeatherIsolatedStorageFile()

        {

            IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication();

            if (isf.FileExists("AppConfig/Weather.txt"))

            {

                using (Stream stream = isf.OpenFile("Weather.txt", FileMode.Open))

                {

                    using (StreamReader reader = new StreamReader(stream))

                    {

                        string[] line = reader.ReadToEnd().Split('|');

                     }

                }

                isf.DeleteFile("Weather.txt");

            }

            else

            {

                InitDataWeather();

            }

        }