<system.framework>
<add key="SystemFramework.Tracing.Enabled" value="True" />
<add key="SystemFramework.Tracing.TraceLevel" value="4" />
</system.framework>

public sealed class NameValueConfigurationItem
: System.Configuration.ConfigurationElement
{
private static ConfigurationPropertyCollection _properties
= new ConfigurationPropertyCollection();
private static readonly ConfigurationProperty _value
= new ConfigurationProperty("value",
typeof(string),
string.Empty,
ConfigurationPropertyOptions.IsRequired);
private static readonly ConfigurationProperty _key
= new ConfigurationProperty("key",
typeof(string),
string.Empty,
ConfigurationPropertyOptions.IsKey | ConfigurationPropertyOptions.IsRequired);
static NameValueConfigurationItem()
{
_properties.Add(_key);
_properties.Add(_value);
}
internal NameValueConfigurationItem()
{
}
public NameValueConfigurationItem(string key, string value)
{
base[_key] = key;
base[_value] = value;
}
[ConfigurationProperty("value", IsRequired = true)]
public string Value
{
get
{
return (string)base[_value];
}
}
protected override ConfigurationPropertyCollection Properties
{
get
{
return _properties;
}
}
[ConfigurationProperty("key", IsRequired = true, IsKey = true)]
public string Key
{
get
{
return (string)base[_key];
}
}
}