如何在自定义配置节的根目录中拥有2种不同类型的集合

Question

我创建了第一个自定义配置部分，一切都很顺利。然后我去把它伸出来，它偏了。我遇到的问题是，在我的部分中，我想有两种不同类型的集合，但找不到很多例子。两个集合中的元素完全不同，但每个集合中的相同。我无法让配置部分返回正确的集合，因为我遇到了错误。我可以作弊并创建两个部分，但这似乎不是实现这一点的正确方法。

好的一些代码

<configSections>
<section name="MyFileSection" type="My.ConfigManager.MyFileListConfiguration, MyConfigManager" />
</configSections>
<MyFileSection>
<MyDirectoryRootCollection>
<add rootName="MyDataLocation"   rootLocation="\MyServerMyDirectory"/>
<add rootName="YourDataLocation" rootLocation="\YourServerYourDirectory"/>
</MyDirectoryRootCollection>
<MyFileListCollection>
<add keyName="MyFile1"   copyType="File" sourceFileName="TestFile1" />
<add keyName="MyFile2"   copyType="FTP"  sourceFileName="TestFile2" />
<add keyName="MyFile3"   copyType="File" sourceFileName="TestFile3" />
</MyFileListCollection>
</MyFileSection>

所以在MyFileSection中，我有两个集合。。。MyDirectoryRootCollection和MyFileListCollection。我以为一个Config类可以让我像这样得到其中的两个。

namespace My.ConfigManager
{
public class MyFileListConfiguration : ConfigurationSection
{
private static string sMyFileListCollectionConst      = "MyFileListCollection";
private static string sMyDirectoryRootCollectionConst = "MyDirectoryRootCollection";

[ConfigurationProperty("MyFileListCollection", IsDefaultCollection = false)]
[ConfigurationCollection(typeof(MyFileListConfigEleCollection), AddItemName = "MyFileListCollection")]
public MyFileListConfigEleCollection MyFileListCollection
{
get { return ((MyFileListConfigEleCollection)(base["MyFileListCollection"])); }
}
[ConfigurationProperty("MyDirectoryRootCollection", IsDefaultCollection = false)]
[ConfigurationCollection(typeof(MyDirectoryRootConfigEleCollection), AddItemName = "MyFileListCollection")]
public MyFileListConfiguration MyDirectoryRoot
{
get { return ((MyFileListConfiguration)(base["MyDirectoryRootCollection"])); }
}
}

我试着用这个调用获取配置部分

MyFileListConfiguration fileListSection = (MyFileListConfiguration)ConfigurationManager.GetSection("MyFileSection");

但是我收到这个错误-

System.Configuration.ConfigurationErrorsException未处理
Message="配置属性'MyDirectoryRootCollection'可能不能从ConfigurationSection派生。">

有人知道我做错了什么吗？有可能在一个部分中有两个完全不同的集合吗？

Answer 1

这应该对您有效。

用法：

MyFileListConfiguration myConfig = (MyFileListConfiguration)ConfigurationManager.GetSection("MyFileSection");
myConfig.Files[0] or myConfig.Files["MyFile1"] => .KeyName / .CopyType / .SourceFileName
//  myConfig.Directories[0] or myConfig.Directories["MyDataLocation"] => .RootName / .RootLocation

public class MyFileListConfiguration : ConfigurationSection
{
[ConfigurationProperty("MyFileListCollection", IsDefaultCollection = false)]
public MyFileListCollection Files
{
get { return ((MyFileListCollection)(base["MyFileListCollection"])); }
}
[ConfigurationProperty("MyDirectoryRootCollection", IsDefaultCollection = false)]
public MyDirCollection Directories
{
get { return ((MyDirCollection)(base["MyDirectoryRootCollection"])); }
}
}
[ConfigurationCollection(typeof(MyFileElement))]
public class MyFileListCollection : ConfigurationElementCollection
{
protected override ConfigurationElement CreateNewElement()
{
return new MyFileElement();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((MyFileElement)(element)).KeyName;
}
/// <summary>
/// Access the collection by index
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public MyFileElement this[int index]
{
get { return (MyFileElement)BaseGet(index); }
}
/// <summary>
/// Access the collection by key name
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public new MyFileElement this[string key]
{
get { return (MyFileElement)BaseGet(key); }
}
}
[ConfigurationCollection(typeof(MyDirElement))]
public class MyDirCollection : ConfigurationElementCollection
{
protected override ConfigurationElement CreateNewElement()
{
return new MyDirElement();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((MyDirElement)(element)).RootName;
}
/// <summary>
/// Access the collection by index
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public MyDirElement this[int index]
{
get { return (MyDirElement)BaseGet(index); }
}
/// <summary>
/// Access the collection by key name
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public new MyDirElement this[string key]
{
get { return (MyDirElement)BaseGet(key); }
}
}
public class MyFileElement : ConfigurationElement
{
[ConfigurationProperty("keyName", DefaultValue = "", IsKey = true, IsRequired = true)]
public string KeyName
{
get { return ((string)(base["keyName"])); }
set { base["keyName"] = value; }
}
[ConfigurationProperty("copyType", DefaultValue = "")]
public string CopyType
{
get { return ((string)(base["copyType"])); }
set { base["copyType"] = value; }
}
[ConfigurationProperty("sourceFileName", DefaultValue = "")]
public string SourceFileName
{
get { return ((string)(base["sourceFileName"])); }
set { base["sourceFileName"] = value; }
}
}
public class MyDirElement : ConfigurationElement
{
[ConfigurationProperty("rootName", DefaultValue = "", IsKey = true, IsRequired = true)]
public string RootName
{
get { return ((string)(base["rootName"])); }
set { base["rootName"] = value; }
}
[ConfigurationProperty("rootLocation", DefaultValue = "")]
public string RootLocation
{
get { return ((string)(base["rootLocation"])); }
set { base["rootLocation"] = value; }
}
}

Answer 2

MyDirectoryRoot属性的类型应为MyDirectoryRootConfigEleCollection，而不是MyFileListConfiguration。请注意，添加元素的名称应为"add"以匹配您的示例http://msdn.microsoft.com/en-us/library/system.configuration.configurationcollectionattribute.configurationcollectionattribute.aspx