在您的示例配置文件，myConfig將是從ConfigurationSection繼承了與三個屬性命名爲mySubConfig1，mySubConfig2和mySubConfig3類。
的類型mySubConfig1屬性（以及圖2和3）將是從ConfigurationElementCollection繼承，實現IEnumerable<ConfigElement>並且與ConfigurationCollection裝飾（其中「AddItemName」屬性設置爲「mySubSubConfig1」）的類。
下面是我在生產部署中使用的一種方法的完整示例實現。一定要包括System.Configuration 程序集。 （這是一個有點混亂，因爲System.Configuration命名空間中的其他assmeblies定義，但必須包括System.Configuration 裝配使用下面的代碼。）
這裏有自定義配置類：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
namespace ConfigTest {
class CustomConfigSection : ConfigurationSection {
[ConfigurationProperty("ConfigElements", IsRequired = true)]
public ConfigElementsCollection ConfigElements {
get {
return base["ConfigElements"] as ConfigElementsCollection;
}
}
}
[ConfigurationCollection(typeof(ConfigElement), AddItemName = "ConfigElement")]
class ConfigElementsCollection : ConfigurationElementCollection, IEnumerable<ConfigElement> {
protected override ConfigurationElement CreateNewElement() {
return new ConfigElement();
}
protected override object GetElementKey(ConfigurationElement element) {
var l_configElement = element as ConfigElement;
if (l_configElement != null)
return l_configElement.Key;
else
return null;
}
public ConfigElement this[int index] {
get {
return BaseGet(index) as ConfigElement;
}
}
#region IEnumerable<ConfigElement> Members
IEnumerator<ConfigElement> IEnumerable<ConfigElement>.GetEnumerator() {
return (from i in Enumerable.Range(0, this.Count)
select this[i])
.GetEnumerator();
}
#endregion
}
class ConfigElement : ConfigurationElement {
[ConfigurationProperty("key", IsKey = true, IsRequired = true)]
public string Key {
get {
return base["key"] as string;
}
set {
base["key"] = value;
}
}
[ConfigurationProperty("SubElements")]
public ConfigSubElementsCollection SubElements {
get {
return base["SubElements"] as ConfigSubElementsCollection;
}
}
}
[ConfigurationCollection(typeof(ConfigSubElement), AddItemName = "ConfigSubElement")]
class ConfigSubElementsCollection : ConfigurationElementCollection, IEnumerable<ConfigSubElement> {
protected override ConfigurationElement CreateNewElement() {
return new ConfigSubElement();
}
protected override object GetElementKey(ConfigurationElement element) {
var l_configElement = element as ConfigSubElement;
if (l_configElement != null)
return l_configElement.Key;
else
return null;
}
public ConfigSubElement this[int index] {
get {
return BaseGet(index) as ConfigSubElement;
}
}
#region IEnumerable<ConfigSubElement> Members
IEnumerator<ConfigSubElement> IEnumerable<ConfigSubElement>.GetEnumerator() {
return (from i in Enumerable.Range(0, this.Count)
select this[i])
.GetEnumerator();
}
#endregion
}
class ConfigSubElement : ConfigurationElement {
[ConfigurationProperty("key", IsKey = true, IsRequired = true)]
public string Key {
get {
return base["key"] as string;
}
set {
base["key"] = value;
}
}
}
}
這裏的App.config文件：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="CustomConfigSection" type="ConfigTest.CustomConfigSection,ConfigTest" />
</configSections>
<CustomConfigSection>
<ConfigElements>
<ConfigElement key="Test1">
<SubElements>
<ConfigSubElement key="-SubTest1.1" />
<ConfigSubElement key="-SubTest1.2" />
</SubElements>
</ConfigElement>
<ConfigElement key="Test2">
<SubElements>
<ConfigSubElement key="-SubTest2.1" />
<ConfigSubElement key="-SubTest2.2" />
</SubElements>
</ConfigElement>
</ConfigElements>
</CustomConfigSection>
</configuration>
最後，這裏是其中訪問和使用配置文件中的代碼：
http://blogs.quovantis.com/net-creating-a-custom-configuration-section-that-contains-a-collection-of-collections/
：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
namespace ConfigTest {
class Program {
static void Main(string[] args) {
var l_configSettings = (CustomConfigSection) ConfigurationManager.GetSection("CustomConfigSection");
foreach (var l_element in l_configSettings.ConfigElements.AsEnumerable()) {
Console.WriteLine(l_element.Key);
foreach (var l_subElement in l_element.SubElements.AsEnumerable()) {
Console.WriteLine(l_subElement.Key);
}
}
Console.WriteLine("Press any key...");
Console.ReadKey(true);
}
}
}
一個重量更輕的替代是在自己的博客寫的蘇尼爾·辛格
來源
2012-11-06 15:17:36
JDB