KeyValueConfigurationElement
namespace System.Configuration
{
public class KeyValueConfigurationElement : ConfigurationElement
{
private static readonly ConfigurationProperty s_propKey = new ConfigurationProperty("key", typeof(string), string.Empty, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
private static readonly ConfigurationProperty s_propValue = new ConfigurationProperty("value", typeof(string), string.Empty, ConfigurationPropertyOptions.None);
private static readonly ConfigurationPropertyCollection s_properties = new ConfigurationPropertyCollection {
s_propKey,
s_propValue
};
private readonly string _initKey;
private readonly string _initValue;
private bool _needsInit;
protected internal override ConfigurationPropertyCollection Properties => s_properties;
[ConfigurationProperty("key", Options = ConfigurationPropertyOptions.IsKey, DefaultValue = "")]
public string Key {
get {
return (string)base[s_propKey];
}
}
[ConfigurationProperty("value", DefaultValue = "")]
public string Value {
get {
return (string)base[s_propValue];
}
set {
base[s_propValue] = value;
}
}
internal KeyValueConfigurationElement()
{
}
public KeyValueConfigurationElement(string key, string value)
{
_needsInit = true;
_initKey = key;
_initValue = value;
}
protected internal override void Init()
{
base.Init();
if (_needsInit) {
_needsInit = false;
base[s_propKey] = _initKey;
Value = _initValue;
}
}
}
}