Windows phone 7 windows phone中的IsolatedStorageException

我收到一个堆栈跟踪报告，报告中说存在一个IsolatedStorageException

“帧图像功能偏移量
0 coredll.dll xxx_RaiseException
1 mscoree3_7.dll
2 mscoree3_7.dll
3 mscoree3_7.dll
4个转换桶
5系统.IO.IsolatedStorage.IsolatedStorage设置。保存
6系统IO隔离存储隔离存储设置清除
7 AppName.CycleManager.WriteToIsolatedStorage
8 AppName.SettingsPage.OnNavigatedFrom
9 Microsoft.Phone.Controls.PhoneApplicationPage.InternalOnNavigatedFrom
10系统.窗口.导航.导航服务.提升激活
11 System.Windows.Navigation.NavigationService.CompleteNavigation 12 System.Windows.Navigation.NavigationService.ContentLoader\u BeginLoad\u回调
13 System.Windows.Navigation.PageResourceContentLoader.BeginLoad\u OniThread 14.\u c\u显示类别4.\u开始加载\u b\u 0
15 mscoree3_7.dll
16 mscoree3_7.dll
17 mscoree3_7.dll
18 System.Reflection.RuntimeMethodInfo.InternalInvoke 19 System.Reflection.RuntimeMethodInfo.InternalInvoke“

因此，我假定该异常是由WriteToIsolatedStorage（）引发的

更新：

    public void WriteNotesToFile()
    {
        if (m_noteCount > 0)
        {
            try
            {
                using (IsolatedStorageFile storagefile = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    if (storagefile.FileExists("NotesFile"))
                    {
                        using (IsolatedStorageFileStream fileStream = storagefile.OpenFile("NotesFile", FileMode.Open, FileAccess.ReadWrite))
                        {
                            StreamWriter writer = new StreamWriter(fileStream);

                            for (int i = 0; i < m_noteCount; i++)
                            {
                                //writer.Write(m_arrNoteDate[i].ToShortDateString());
                                writer.Write(m_arrNoteDate[i].ToString("d", CultureInfo.InvariantCulture));
                                writer.Write(" ");
                                writer.Write(m_arrNoteString[i]);
                                writer.WriteLine("~`");
                            }
                            writer.Close();
                        }
                    }
                    else
                    {
                        storagefile.CreateFile("NotesFile.txt");
                        using (IsolatedStorageFileStream fileStream = storagefile.OpenFile("NotesFile", FileMode.Create, FileAccess.ReadWrite))
                        {
                            StreamWriter writer = new StreamWriter(fileStream);

                            for (int i = 0; i < m_noteCount; i++)
                            {
                                //writer.Write(m_arrNoteDate[i].ToShortDateString());
                                writer.Write(m_arrNoteDate[i].ToString("d", CultureInfo.InvariantCulture));
                                writer.Write(" ");
                                writer.Write(m_arrNoteString[i]);
                                writer.WriteLine("~`");
                            }
                            writer.Close();
                        }
                    }
                }
            }
            catch { }
        }
    }

如果有人能澄清这些，我将不胜感激

谢谢，

如果没有足够的空间，对的呼叫将失败。
由于我们看不到

WriteXxxxToFile（）

方法在做什么，它们可能正在做一些可能导致此问题的事情

这也可能与以下问题有关：您有多个线程试图访问设置或应用程序关闭或删除，但您的保存方法花费的时间太长

确定真正原因的最佳方法是添加一些处理，以支持调用

WriteToIsolatedStorage（）

引发此类异常，然后根据您的应用/需要记录并报告该异常的情况

关于

删除

，请参见

“此方法将不可撤销地删除 当前用户的应用程序及其所有目录和文件。“

---

嗨，你能提供异常消息吗？@Ashura有趣的是我无法重现崩溃（我不知道抛出了什么消息。谢谢@Matt，我已经用writeNotofile函数更新了问题。这个报告是在我更新了版本后才出现的，几乎没有什么变化。它以前从未出现过。奇怪的是，对于更新，写入/读取的逻辑从未被修改过。因为你正在抑制来自

Wr的任何错误iteNoteToFile

方法它将不存在。我建议添加适当的错误日志和异常处理，并提交更新。

    public void WriteNotesToFile()
    {
        if (m_noteCount > 0)
        {
            try
            {
                using (IsolatedStorageFile storagefile = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    if (storagefile.FileExists("NotesFile"))
                    {
                        using (IsolatedStorageFileStream fileStream = storagefile.OpenFile("NotesFile", FileMode.Open, FileAccess.ReadWrite))
                        {
                            StreamWriter writer = new StreamWriter(fileStream);

                            for (int i = 0; i < m_noteCount; i++)
                            {
                                //writer.Write(m_arrNoteDate[i].ToShortDateString());
                                writer.Write(m_arrNoteDate[i].ToString("d", CultureInfo.InvariantCulture));
                                writer.Write(" ");
                                writer.Write(m_arrNoteString[i]);
                                writer.WriteLine("~`");
                            }
                            writer.Close();
                        }
                    }
                    else
                    {
                        storagefile.CreateFile("NotesFile.txt");
                        using (IsolatedStorageFileStream fileStream = storagefile.OpenFile("NotesFile", FileMode.Create, FileAccess.ReadWrite))
                        {
                            StreamWriter writer = new StreamWriter(fileStream);

                            for (int i = 0; i < m_noteCount; i++)
                            {
                                //writer.Write(m_arrNoteDate[i].ToShortDateString());
                                writer.Write(m_arrNoteDate[i].ToString("d", CultureInfo.InvariantCulture));
                                writer.Write(" ");
                                writer.Write(m_arrNoteString[i]);
                                writer.WriteLine("~`");
                            }
                            writer.Close();
                        }
                    }
                }
            }
            catch { }
        }
    }

IsolatedStorageFile storagefile = IsolatedStorageFile.GetUserStoreForApplication();
storagefile.Remove();