WP7独立存储IsolatedStorageFile读写文件实现程序

IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication();
                if (myIsolatedStorage.FileExists("fav.json") == true)
                {
                    //打开文件
                    IsolatedStorageFileStream stream = myIsolatedStorage.OpenFile("fav.json", FileMode.Open);
                    try
                    {
                        using (var sr = new StreamReader(stream))
                        {
                            //读取文件
                            string result = sr.ReadToEnd();
                            result = result.Trim();
                            sr.Close();
                            //反序列化为对象
                            List<VideoItemData> Data = (List<VideoItemData>)JsonConvert.DeserializeObject<List<VideoItemData>>(result);
                            foreach (var d in Data)
                            {
                                //添加到listview数据源
                                FavData.Add(d);
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                    }
                    finally
                    {
                        stream.Close();
                    }
                }