C# 可扩展.NET配置_C#_.net_Oop_Design Patterns

C# 可扩展.NET配置

c# .net oop design-patterns

C# 可扩展.NET配置,c#,.net,oop,design-patterns,C#,.net,Oop,Design Patterns,我想分发一个带有ConfigurationSection的DLL，如下所示： public class StandardConfiguration : ConfigurationSection { public static StandardConfiguration GetInstance() { return (StandardConfiguration)ConfigurationManager.GetSection("customConfigSection"

我想分发一个带有

ConfigurationSection

的DLL，如下所示：

public class StandardConfiguration : ConfigurationSection
{
    public static StandardConfiguration GetInstance()
    {
        return (StandardConfiguration)ConfigurationManager.GetSection("customConfigSection");
    }

    [ConfigurationProperty("childConfig")]
    public StandardChildConfig ChildConfig
    {
        get { return (StandardChildConfig)this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}

public class StandardChildConfig : ConfigurationElement
{
    [ConfigurationProperty("p1")]
    public string P1
    {
        get { return (string)this["p1"]; }
        set { this["p1"] = value; }
    }
}

public class StandardConfiguration<TChildConfig> : ConfigurationSection
    where TChildConfig : StandardChildConfig
{
    [ConfigurationProperty("childConfig")]
    public TChildConfig ChildConfig
    {
        get { return (TChildConfig)this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}

public class StandardChildConfig : ConfigurationElement
{
    [ConfigurationProperty("p1")]
    public string P1
    {
        get { return (string)this["p1"]; }
        set { this["p1"] = value; }
    }
}

我想使

ConfigurationSection

及其子

ConfigElement

可继承。这可以使用类型参数完成，如下所示：

public class StandardConfiguration : ConfigurationSection
{
    public static StandardConfiguration GetInstance()
    {
        return (StandardConfiguration)ConfigurationManager.GetSection("customConfigSection");
    }

    [ConfigurationProperty("childConfig")]
    public StandardChildConfig ChildConfig
    {
        get { return (StandardChildConfig)this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}

public class StandardChildConfig : ConfigurationElement
{
    [ConfigurationProperty("p1")]
    public string P1
    {
        get { return (string)this["p1"]; }
        set { this["p1"] = value; }
    }
}

public class StandardConfiguration<TChildConfig> : ConfigurationSection
    where TChildConfig : StandardChildConfig
{
    [ConfigurationProperty("childConfig")]
    public TChildConfig ChildConfig
    {
        get { return (TChildConfig)this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}

public class StandardChildConfig : ConfigurationElement
{
    [ConfigurationProperty("p1")]
    public string P1
    {
        get { return (string)this["p1"]; }
        set { this["p1"] = value; }
    }
}

下面是扩展配置的场景：

<?xml version="1.0"?>
<configuration>
    <configSections>
        <section
            name="customConfig"
            type="WebsiteTemplate.Extended.Config.ExtendedConfigruation, WebsiteTemplate.Extended"
        />
    </configSections>
    <customConfig baseProp1="a" extendedProp1="c">
        <childConfig baseProp2="b" extendedProp2="d" />
    </customConfig>
</configuration>


在第二个实例中标准配置。GetInstance（）
没有任何意义，因为标准配置是通用的。您必须使用StandardConfiguration.GetInstance（）.ChildConfig.P1

您可能可以执行以下操作：
public class StandardConfigurationBase : ConfigurationSection
{
    public static StandardConfigurationBase GetInstance()
    {
        return (StandardConfigurationBase) ConfigurationManager.GetSection("customConfigSection");
    }

    [ConfigurationProperty("childConfig")]
    public StandardChildConfig ChildConfig
    {
        get { return (StandardChildConfig) this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}

public class StandardConfiguration<TChildConfig> : StandardConfigurationBase
where TChildConfig : StandardChildConfig
{
    [ConfigurationProperty("childConfig")]
    public new TChildConfig ChildConfig
    {
        get { return (TChildConfig)this["childConfig"]; }
        set { this["childConfig"] = value; }
    }
}
public class StandardChildConfig : ConfigurationElement
{
    [ConfigurationProperty("p1")]
    public string P1
    {
        get { return (string)this["p1"]; }
        set { this["p1"] = value; }
    }
}

公共类标准配置库：配置部分
{
公共静态StandardConfigurationBase GetInstance（）
{
return（StandardConfigurationBase）ConfigurationManager.GetSection（“customConfigSection”）；
}
[ConfigurationProperty（“childConfig”）]
公共标准ChildConfig ChildConfig
{
获取{return（StandardChildConfig）this[“childConfig”]；}
设置{this[“childConfig”]=value；}
}
}
公共类StandardConfiguration:StandardConfigurationBase
其中TChildConfig:StandardChildConfig
{
[ConfigurationProperty（“childConfig”）]
公共新TChildConfig ChildConfig
{
获取{return（TChildConfig）this[“childConfig”]；}
设置{this[“childConfig”]=value；}
}
}
公共类StandardChildConfig:ConfigurationElement
{
[配置属性（“p1”）]
公共字符串P1
{
获取{返回（字符串）this[“p1”]；}
设置{this[“p1”]=value；}
}
}

然后在不知道子对象的特定类型时访问该子对象：
    StandardConfigurationBase b = new StandardConfiguration<StandardChildConfig>();
    StandardChildConfig x = StandardConfigurationBase.GetInstance().ChildConfig;

StandardConfigurationBase b=新的StandardConfiguration（）；
StandardChildConfig x=StandardConfigurationBase.GetInstance（）.ChildConfig；

但是，我不清楚这样做的真正价值。
我的问题的“答案”是将基本配置分解为一个带有类型参数和接口的抽象类
下面显示了BaseLib.dll中定义的内容。有默认配置和默认子配置
接口和abstract类
public interface IAppConfig
{
    string AppProp1 { get; }
    SubConfig SubConfig { get; }
}

public abstract class BaseAppConfig<TSubConfig> : ConfigurationSection, IAppConfig
    where TSubConfig : SubConfig
{
    [ConfigurationProperty("appProp1")]
    public string AppProp1
    {
        get { return (string)this["appProp1"]; }
        set { this["appProp1"] = value; }
    }

    [ConfigurationProperty("subConfig")]
    public TSubConfig SubConfig
    {
        get { return (TSubConfig)this["subConfig"]; }
        set { this["subConfig"] = value; }
    }

    // Implement the interface
    string IAppConfig.AppProp1 { get { return this.AppProp1; } }
    SubConfig IAppConfig.SubConfig { get { return this.SubConfig; } }
}

public class AppConfig : BaseAppConfig<SubConfig>
{
    const string SECTION_KEY = "AppConfig";

    public static IAppConfig Instance
    {
        get { return (IAppConfig)ConfigurationManager.GetSection(SECTION_KEY); }
    }
}

public class SubConfig : ConfigurationElement
{
    [ConfigurationProperty("supProp1")]
    public string SubProp1
    {
        get { return (string)this["supProp1"]; }
        set { this["supProp1"] = value; }
    }
}

public class ExtAppConfig : BaseAppConfig<ExtSubConfig>
{
    public static ExtAppConfig Instance
    {
        get { return (ExtAppConfig)AppConfig.Instance; }
    }

    [ConfigurationProperty("extAppProp1")]
    public string ExtAppProp1
    {
        get { return (string)this["extAppProp1"]; }
        set { this["extAppProp1"] = value; }
    }
}

public class ExtSubConfig : SubConfig
{
    [ConfigurationProperty("extSubProp1")]
    public string ExtSubProp1
    {
        get { return (string)this["extSubProp1"]; }
        set { this["extSubProp1"] = value; }
    }
}

下面显示了ExtLib.dll中定义的内容。配置和子配置都被扩展
扩展实施
public interface IAppConfig
{
    string AppProp1 { get; }
    SubConfig SubConfig { get; }
}

public abstract class BaseAppConfig<TSubConfig> : ConfigurationSection, IAppConfig
    where TSubConfig : SubConfig
{
    [ConfigurationProperty("appProp1")]
    public string AppProp1
    {
        get { return (string)this["appProp1"]; }
        set { this["appProp1"] = value; }
    }

    [ConfigurationProperty("subConfig")]
    public TSubConfig SubConfig
    {
        get { return (TSubConfig)this["subConfig"]; }
        set { this["subConfig"] = value; }
    }

    // Implement the interface
    string IAppConfig.AppProp1 { get { return this.AppProp1; } }
    SubConfig IAppConfig.SubConfig { get { return this.SubConfig; } }
}

public class AppConfig : BaseAppConfig<SubConfig>
{
    const string SECTION_KEY = "AppConfig";

    public static IAppConfig Instance
    {
        get { return (IAppConfig)ConfigurationManager.GetSection(SECTION_KEY); }
    }
}

public class SubConfig : ConfigurationElement
{
    [ConfigurationProperty("supProp1")]
    public string SubProp1
    {
        get { return (string)this["supProp1"]; }
        set { this["supProp1"] = value; }
    }
}

public class ExtAppConfig : BaseAppConfig<ExtSubConfig>
{
    public static ExtAppConfig Instance
    {
        get { return (ExtAppConfig)AppConfig.Instance; }
    }

    [ConfigurationProperty("extAppProp1")]
    public string ExtAppProp1
    {
        get { return (string)this["extAppProp1"]; }
        set { this["extAppProp1"] = value; }
    }
}

public class ExtSubConfig : SubConfig
{
    [ConfigurationProperty("extSubProp1")]
    public string ExtSubProp1
    {
        get { return (string)this["extSubProp1"]; }
        set { this["extSubProp1"] = value; }
    }
}

库中有更多的定义，但它应该使扩展此配置相对容易。
并且实例的类型不能是ConfigurationElement
？“我不清楚你在问什么…”彼得·里奇-我已经添加了一个我正在尝试做的例子。让我知道这是否有意义。谢谢。请使用我的库。我正在创建一个网站模板，以便在我的公司分发。模板将附带一个DLL，它需要一个基本配置。我希望此模板的实现者能够扩展配置。将属性添加到基本配置很简单。棘手的是如何允许ConfigurationSection
的ConfigurationElement
s可扩展。我知道每个网站都可以创建自己的配置，但我认为按照我的方式做事会使配置更干净。但我可能错了：）