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Asked: 2026-05-10T18:20:49+00:00

I need to create a configuration section, that is able to store key-value pairs

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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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  1. I found two great articles on codeproject.com that are explaining these issues in great detail.

    Unraveling the Mysteries of .NET 2.0 Configuration http://www.codeproject.com/KB/dotnet/mysteriesofconfiguration.aspx

    User Settings Applied http://www.codeproject.com/KB/dotnet/user_settings.aspx?display=PrintAll&fid=1286606&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=2647446&fr=26

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