設置xml StackOverflowException錯誤

Question

當我嘗試讀取我的設置時出現錯誤。我知道我在某處寫錯了。由於我找不到太多信息，單獨完成該程序。

//設置讀碼

public static class proSave 
    { 
     public static propertyClass oku 
     { 
      get 
      { 
       XmlSerializer serialize = new XmlSerializer(typeof(propertyClass)); 
       var stream = new StreamReader("settings.xml"); 
       return (propertyClass)serialize.Deserialize(stream); 

      } 
     } 
    } 

設置應用代碼

namespace property 
     { 
     [Serializable] 
     public class propertyClass 
     { 
      private string _serverName = proSave.oku.serverName; 
      [Description("Server Bağlantı Adı"), Category("Server Setting")] 
      public string serverName { get { return _serverName; }} 

      private string _databaseName = proSave.oku.serverName; 
      [Description("Server Bağlantısı Dosya Adı"), Category("Server Setting")] 
      public string databaseName { get { return _serverName; } } 

      private string _user = proSave.oku.user; 
      [Description("Server Bağlantısı kullanıcı adı"), Category("Server Setting")] 
      public string user { get { return _user; } } 

      private string _password = proSave.oku.password; 
      [Description("Server Bağlantısı kullanıcı şifresi"), Category("Server Setting")] 
      public string password { get { return _password; } } 

      private int _gridHeight = proSave.oku.gridHeight; 
      [Description("Grid Hücre Yükseklik Ayarı \nFormlar Yenilendiğinde etkinleştirilecektir."), Category("Grid Ayarları")] 
      public int gridHeight { get { return _gridHeight; } } 


     } 
    } 

XML：異常

<?xml version="1.0" encoding="utf-8"?> 
<propertyClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
    <serverName>1</serverName> 
    <databaseName>Kadir</databaseName> 
    <user>as</user> 
    <gridHeight>40</gridHeight> 
</propertyClass> 

Answer 1

我想你的propertyClass中有一個循環引用，它引起一個循環，最終導致一個StackOverflow異常（在propertyClass中引用proSave.oku，它是propertyClass的一個實例）。刪除你propertyClass這個參考解決您的問題 - 可以保留你的代碼的其餘部分，因爲它是：

[Serializable] 
public class propertyClass 
{ 
    [Description("Server Bağlantı Adı"), Category("Server Setting")] 
    public string serverName { get; set; } 

    [Description("Server Bağlantısı Dosya Adı"), Category("Server Setting")] 
    public string databaseName { get; set; } 

    [Description("Server Bağlantısı kullanıcı adı"), Category("Server Setting")] 
    public string user { get; set; } 

    [Description("Server Bağlantısı kullanıcı şifresi"), Category("Server Setting")] 
    public string password { get; set; } 

    [Description("Grid Hücre Yükseklik Ayarı \nFormlar Yenilendiğinde etkinleştirilecektir."), Category("Grid Ayarları")] 
    public int gridHeight { get; set; } 
} 

如果你想延伸，以防止讀取XML文件中的每個時刻的執行，你可以進一步修改有ProSave類「緩存」的設置，例如：

public static class proSave 
{ 
    private static propertyClass settings; 

    private const string SettingsFilePath = "C:\\settings.xml"; 

    public static propertyClass oku 
    { 
     get 
     { 
      if (settings == null) 
      { 
       settings = GetSettings(); 
       return settings; 
      } 

      return settings; 
     } 
    } 

    public static void SaveSettings(propertyClass settings) 
    { 
     XmlSerializer writer = new XmlSerializer(typeof(propertyClass)); 

     using (FileStream file = File.Create(SettingsFilePath)) 
     { 
      writer.Serialize(file, settings); 
     } 
    } 

    private static propertyClass GetSettings() 
    { 
     XmlSerializer serialize = new XmlSerializer(typeof(propertyClass)); 

     using (var stream = new StreamReader(SettingsFilePath)) 
     { 
      return (propertyClass)serialize.Deserialize(stream); 
     } 
    } 
} 

在SaveSettings寫設置時回（）方法，您將需要處理的IOExceptions如果該文件被鎖定。

您還可以查看替代方案，例如使用內置的ConfigurationManager或實現自定義ConfigurationSection。希望這可以幫助。

Answer 2

<?xml version="1.0" encoding="utf-8"?> 
<propertyClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
    <serverName>1</serverName> 
    <databaseName>Kadir</databaseName> 
    <user>as</user> 
    <gridHeight>40</gridHeight> 
</propertyClass> 

System.StackOverflowException'類型的拋出。