需要创建一个也保存类型的动态 ConfigurationSection

发布于 2024-07-06 12:45:39 字数 1113 浏览 15 评论 0原文

我需要创建一个配置部分，它能够在 app.config 文件中存储键值对，并且无论其类型如何，都可以在运行时添加键值对。该值保持其原始类型也很重要。我需要扩展以下接口

public interface IPreferencesBackend
{
    bool TryGet<T>(string key, out T value);
    bool TrySet<T>(string key, T value); 
}

在运行时，我可以这样说：

My.Foo.Data data = new My.Foo.Data("blabla");
Pref pref = new Preferences();
pref.TrySet("foo.data", data); 
pref.Save();

My.Foo.Data date = new My.Foo.Data();
pref.TryGet("foo.data", out data);

我尝试使用 System.Configuration.Configuration.AppSettings，但问题是它将键值对存储在字符串数组中。

我需要的是 System.Configuration.ConfigurationSection 的实现，我可以在其中控制单个设置的序列化方式。我注意到 Visual Studio 生成的设置可以执行此操作。它使用反射来创建所有设置键。我需要的是动态地执行此运行时操作。

[System.Configuration.UserScopedSettingAttribute()]
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
[System.Configuration.DefaultSettingValueAttribute("2008-09-24")]
public global::System.DateTime DateTime {
   get {
        return ((global::System.DateTime)(this["DateTime"]));
       }
   set {
        this["DateTime"] = value;
       }
 }

原文

I need to create a configuration section, that is able to store key-value pairs in an app.config file and the key-value pairs can be added runtime regardless of their type. It is also important that the value keeps its original type. I need to extend the following interface

public interface IPreferencesBackend
{
    bool TryGet<T>(string key, out T value);
    bool TrySet<T>(string key, T value); 
}

At runtime, I can say something like:

My.Foo.Data data = new My.Foo.Data("blabla");
Pref pref = new Preferences();
pref.TrySet("foo.data", data); 
pref.Save();

My.Foo.Data date = new My.Foo.Data();
pref.TryGet("foo.data", out data);

I tried with System.Configuration.Configuration.AppSettings, but the problem with that that it is storing the key-value pairs in a string array.

What I need is to have an implementation of System.Configuration.ConfigurationSection, where I can control the how the individual setting is serialized. I noticed that the settings generated by Visual Studio kind of do this. It is using reflection to create all the setting keys. what I need is to do this runtime and dynamically.

[System.Configuration.UserScopedSettingAttribute()]
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
[System.Configuration.DefaultSettingValueAttribute("2008-09-24")]
public global::System.DateTime DateTime {
   get {
        return ((global::System.DateTime)(this["DateTime"]));
       }
   set {
        this["DateTime"] = value;
       }
 }

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