如何通過applicationsettingsbase重新加載不同的對象？

// TestASettingsString and TestBSettingsString are byte[] 
// TestASettings and TestBSettings are two objects to be saved

在SettingsSaving，TestASettings和TestBSettings序列化爲兩個不同的字節數組，然後保存（在某些其他功能）如何通過applicationsettingsbase重新加載不同的對象？

我的問題是如何在loadsavedsettings恢復TestASettings和TestBSettings從TestASettingsString和TestASettingsString seperately？

那就是當我做 formatter.Deserialize（stream）;

如何分離兩個完全不同的對象來自formatter.Deserialize（stream）的TestASettings和TestBSettings？

感謝

private void SettingsSaving(object sender, CancelEventArgs e) 
    { 

     try 
     { 
      var stream = new MemoryStream(); 
      var formatter = new BinaryFormatter(); 
      formatter.Serialize(stream, TestASettings); 
    // TestASettingsString and TestBSettingsString are byte[] 
      TestASettingsString = stream.ToArray(); 

      stream.Flush(); 
      formatter.Serialize(stream, TestBSettings); 
      TestBSettingsString = stream.ToArray(); 

      stream.Close(); 
     } 
     catch (Exception ex) 
     { 
      Debug.WriteLine(ex); 
     } 
    } 





private void LoadSavedSettings() 
    { 
     Reload(); 
     // how to get TestASettings and TestBSettings from TestASettingsString and 
     // TestASettingsString seperately? 
    }

來源

2010-04-23 user302933

我懷疑是問題的一部分是在這裏：

 TestASettingsString = stream.ToArray(); 
     stream.Flush(); 
     formatter.Serialize(stream, TestBSettings); 
     TestBSettingsString = stream.ToArray();

爲MemoryStream，Flush()是一個空操作。你實際上意味着：

 TestASettingsString = stream.ToArray(); 
     stream.SetLength(0); 
     formatter.Serialize(stream, TestBSettings); 
     TestBSettingsString = stream.ToArray();

這將重置流，給TestBSettingsString作爲數據單獨塊？目前TestBSettingsString實際上包含TestASettings和TestBSettings。

做完這些，它應該只是倒車東西的情況下：

using(MemoryStream ms = new MemoryStream(TestASettingsString)) { 
    BinaryFormatter bf = new BinaryFormatter(); 
    TestASettings = (WhateverType)bf.Deserialize(ms); 
} 
using(MemoryStream ms = new MemoryStream(TestBSettingsString)) { 
    BinaryFormatter bf = new BinaryFormatter(); 
    TestBSettings = (WhateverOtherType)bf.Deserialize(ms); 
}

還請注意：我使用BinaryFormatter任何離線堅持的東西（磁盤，數據庫等）提出不。

來源

2010-04-23 15:53:05

@younevertell - 您是否添加了「SetLength（0）」？ – 2010-04-23 18:00:07

非常感謝，Marc。它現在有效 – user302933 2010-04-23 19:23:46

但stream.SetLength（0）;不起作用。我關閉了流，並得到一個新的 – user302933 2010-04-23 19:25:07

反序列化他們需要這樣的代碼：

var ms = new MemoryStream(TestASettingsString); 
var fmt = new BinaryFormatter(); 
TestASettings = (TestAClass)fmt.Deserialize(ms);

哪裏TestAClass是TestASettings的類型。您需要重置序列化代碼中的流，將位置設置爲0.

來源

2010-04-23 16:10:44

如何通過applicationsettingsbase重新加載不同的對象？

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