Question

我有这样的代码：

public void zapiszDoPliku(string sciezkaDoPliku, IsolatedStorageFile katalog)
{
    IsolatedStorageFileStream strumien = katalog.CreateFile(sciezkaDoPliku); // tworzenie pliku

    MemoryStream ms = new MemoryStream();
    StreamReader r  = new StreamReader(ms);

    DataContractSerializer serializer = new DataContractSerializer(typeof(kontenerUstawienia));

    //--v-- HERE IS EXCEPTION THROWED
    serializer.WriteObject(ms, this);

    ms.Position = 0;

    string daneDoZapisania = r.ReadToEnd();

    byte[] bytes = Encoding.Unicode.GetBytes(daneDoZapisania);

    strumien.Write(bytes, 0, bytes.Length);

    ms.Close();
    strumien.Close();
}

在'// - v--这里是例外情况下'被抛出异常

An exception of type 'System.Runtime.Serialization.InvalidDataContractException'
occurred in System.Runtime.Serialization.ni.dll but was not handled in user code

If there is a handler for this exception, the program may be safely continued.

代码的第二部分：

IsolatedStorageFileStream strumien; // otwarcie pliku do odczytu

try
{
    strumien = katalog.OpenFile(sciezkaDoPliku, FileMode.Open);
}

catch (Exception e)
{
     System.Diagnostics.Debug.WriteLine("Nie odnaleziono pliku ustawien gry");

     return;
}

它把我扔到了这里：

An exception of type 
'System.IO.IsolatedStorage.IsolatedStorageException' 
occurred in mscorlib.ni.dll but was not handled in user code

If there is a handler for this exception, the program may be safely continued.

这里发生了什么。为什么会抛出这种例外？我在msdn上搜索并读取存储已被禁用。但我不知道如何启用它。

WP8 SDK中的IsolatedStorageFile异常

0 个答案: