ConfigurationSection上无法识别的元素

本文关键字：元素 识别 ConfigurationSection | 更新日期: 2023-09-27 18:15:11

我希望能够模拟以下配置:

<bundles>
    <resource type="script">
         <bundle name="common/services">
             <file path="common/consoleService.js" />
             <file path="common/localStorageService.js" />
             <file path="common/restService.js" />
             <!-- ... More files ... -->
         </bundle>
    </resource>
</bundles>

所以我继续创建以下ConfigurationSection:

internal class BundlesSection : ConfigurationSection
{
     internal const string TAG_NAME = "bundles";
     [ConfigurationProperty(ResourceCollection.TAG_NAME,
                            IsRequired = false,
                            IsDefaultCollection = true)]
     internal ResourceCollection Resources
     {
         get { return this[ResourceCollection.TAG_NAME] as ResourceCollection; }
     }
}

[ConfigurationCollection(typeof(ResourceElement),
    AddItemName = ResourceElement.TAG_NAME)]
internal class ResourceCollection : ConfigurationElementCollection
{
    internal const string TAG_NAME = "";
    protected override ConfigurationElement CreateNewElement()
    {
        return new ResourceElement();
    }
    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((ResourceElement)element).Type;
    }
}

[ConfigurationCollection(typeof(BundleElement),
    AddItemName = BundleElement.TAG_NAME)]
internal class ResourceElement : ConfigurationElementCollection
{
     internal const string TAG_NAME = "resource";
     private const string ATTR_TYPE = "type";
     [ConfigurationProperty(ATTR_TYPE,
                           IsRequired = true,
                           IsKey = true)]
     internal string Type
     {
         get { return this[ATTR_TYPE] as string; }
         set { this[ATTR_TYPE] = value; }
     }
    protected override ConfigurationElement CreateNewElement()
    {
        return new BundleElement();
    }
    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((BundleElement)element).Name;
    }
}

[ConfigurationCollection(typeof(FileElement),
    AddItemName = FileElement.TAG_NAME)]
internal class BundleElement : ConfigurationElementCollection
{
     internal const string TAG_NAME = "bundle";
     private const string ATTR_NAME = "name";
     [ConfigurationProperty(ATTR_NAME,
                           IsRequired = true,
                           IsKey = true)]
     internal string Name
     {
         get { return this[ATTR_NAME] as string; }
         set { this[ATTR_NAME] = value; }
     }
    protected override ConfigurationElement CreateNewElement()
    {
        return new FileElement();
    }
    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((FileElement)element).Path;
    }
}

internal class FileElement : ConfigurationElement
{
    internal const string TAG_NAME = "file";
    private const string ATTR_PATH = "path";
    [ConfigurationProperty(ATTR_PATH,
                           IsRequired = true,
                           IsKey = true)]
    internal string Path
    {
         get { return this[ATTR_PATH] as string; }
         set { this[ATTR_PATH] = value; }
    }
}

虽然一切看起来都很好，但当第一次加载section时，我得到了以下异常:

无法识别的元素"bundle"

你可以看到，BundleElement.TAG_NAME是"bundle"，所以我不知道为什么它没有被识别。

我正在按如下方式加载配置部分:

private BundlesSection LoadSection()
{
    return ConfigurationManager.GetSection(String.Format("static/{0}", BundlesSection.TAG_NAME)) as BundlesSection;
}

我也有以下在我的Web.config:

<configuration>
    <configSections>
        <sectionGroup name="static">
            <section name="bundles" type="XXX" restartOnExternalChanges="true" />
        </sectionGroup>
    </configSections>
    <static>
        <bundles configSource=".'Configuration'Static'Bundles.xml" />
    </static>
</configuration>

ConfigurationSection上无法识别的元素

两个问题:集合类型和元素名称。需要将ResourceElement和BundleElement指定为ConfigurationElementCollectionType。BasicMap

然后适当地覆盖它们各自的ElementName属性。

[ConfigurationCollection(typeof(BundleElement))]
    internal class ResourceElement : ConfigurationElementCollection
    {
        internal const string TAG_NAME = "resource";
        private const string ATTR_TYPE = "type";
        [ConfigurationProperty(ATTR_TYPE, IsRequired = true, IsKey = true)]
        internal string Type
        {
            get { return base[ATTR_TYPE] as string; }
            set { base[ATTR_TYPE] = value; }
        }
        protected override string ElementName { get { return BundleElement.TAG_NAME; } }
        public override ConfigurationElementCollectionType CollectionType
        {
            get {return  ConfigurationElementCollectionType.BasicMap;}
        }
        protected override ConfigurationElement CreateNewElement()
        {
            return new BundleElement();
        }
        protected override object GetElementKey(ConfigurationElement element)
        {
            return ((BundleElement)element).Name;
        }
    }
 [ConfigurationCollection(typeof(FileElement))]
    internal class BundleElement : ConfigurationElementCollection
    {
        internal const string TAG_NAME = "bundle";
        private const string ATTR_NAME = "name";
    [ConfigurationProperty(ATTR_NAME, IsRequired = true, IsKey = true)]
    internal string Name
    {
        get { return this[ATTR_NAME] as string; }
        set { this[ATTR_NAME] = value; }
    }
    protected override string ElementName { get { return FileElement.TAG_NAME; } }
    public override ConfigurationElementCollectionType CollectionType
    {
        get { return ConfigurationElementCollectionType.BasicMap; }
    }
    protected override ConfigurationElement CreateNewElement()
    {
        return new FileElement();
    }
    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((FileElement)element).Path;
    }  
}
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