上述的模式增加了一个静态GetSection()方法给每个自定义ConfigurationSection类。它的一个重载方法，以一个字符串作为参数，允许你为.config中元素定义一个不同的名字，如果你喜欢的话。另外，默认的重载是可以使用的。这种模式使用在标准的应用程序(.exe)的配置节下工作的非常好。然而，如果配置节使用在一个web.config文件中，你将需要使用下面的代码：
using System.Web;
using System.Web.Configuration;
public class SomeConfigurationSection
{
static SomeConfigurationSection()
{
// Preparation...
}
// Properties...
#region GetSection Pattern
private static SomeConfigurationSection m_section;
/// <summary>
/// Gets the configuration section using the default element name.
/// </summary>
/// <remarks>
/// If an HttpContext exists, uses the WebConfigurationManager
/// to get the configuration section from web.config.
/// </remarks>
public static SomeConfigurationSection GetSection()
{
return GetSection("someConfiguration");
}
/// <summary>
/// Gets the configuration section using the specified element name.
/// </summary>
/// <remarks>
/// If an HttpContext exists, uses the WebConfigurationManager
/// to get the configuration section from web.config.
/// </remarks>
public static SomeConfigurationSection GetSection(string definedName)
{
if (m_section == null)
{
string cfgFileName = ".config";
if (HttpContext.Current == null)
{
m_section = ConfigurationManager.GetSection(definedName)
as SomeConfigurationSection;
}
else
{
m_section = WebConfigurationManager.GetSection(definedName)
as SomeConfigurationSection;
cfgFileName = "web.config";
}
if (m_section == null)
throw new ConfigurationException("The <" + definedName +
"> section is not defined in your " +
cfgFileName + " file!");
}
return m_section;
}
#endregion
}
using System.Web.Configuration;
public class SomeConfigurationSection
{
static SomeConfigurationSection()
{
// Preparation...
}
// Properties...
#region GetSection Pattern
private static SomeConfigurationSection m_section;
/// <summary>
/// Gets the configuration section using the default element name.
/// </summary>
/// <remarks>
/// If an HttpContext exists, uses the WebConfigurationManager
/// to get the configuration section from web.config.
/// </remarks>
public static SomeConfigurationSection GetSection()
{
return GetSection("someConfiguration");
}
/// <summary>
/// Gets the configuration section using the specified element name.
/// </summary>
/// <remarks>
/// If an HttpContext exists, uses the WebConfigurationManager
/// to get the configuration section from web.config.
/// </remarks>
public static SomeConfigurationSection GetSection(string definedName)
{
if (m_section == null)
{
string cfgFileName = ".config";
if (HttpContext.Current == null)
{
m_section = ConfigurationManager.GetSection(definedName)
as SomeConfigurationSection;
}
else
{
m_section = WebConfigurationManager.GetSection(definedName)
as SomeConfigurationSection;
cfgFileName = "web.config";
}
if (m_section == null)
throw new ConfigurationException("The <" + definedName +
"> section is not defined in your " +
cfgFileName + " file!");
}
return m_section;
}
#endregion
}
