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//------------------------------------------------------------------------------
// <copyright file="KeyValueConfigurationElement.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Configuration {
using System;
using System.Xml;
using System.Configuration;
using System.Collections.Specialized;
using System.Collections;
using System.IO;
using System.Text;
public class KeyValueConfigurationElement : ConfigurationElement {
private static ConfigurationPropertyCollection _properties;
private static readonly ConfigurationProperty _propKey =
new ConfigurationProperty("key", typeof(string), String.Empty, ConfigurationPropertyOptions.IsKey | ConfigurationPropertyOptions.IsRequired);
private static readonly ConfigurationProperty _propValue =
new ConfigurationProperty("value", typeof(string), String.Empty, ConfigurationPropertyOptions.None);
static KeyValueConfigurationElement() {
// Property initialization
_properties = new ConfigurationPropertyCollection();
_properties.Add(_propKey);
_properties.Add(_propValue);
}
protected internal override ConfigurationPropertyCollection Properties {
get {
return _properties;
}
}
bool _needsInit;
string _initKey;
string _initValue;
//
// Constructor
//
internal KeyValueConfigurationElement() {
}
public KeyValueConfigurationElement(string key, string value) {
_needsInit = true;
_initKey = key;
_initValue = value;
}
protected internal override void Init() {
base.Init();
// We cannot initialize configuration properties in the constructor,
// because Properties is an overridable virtual property that
// hence may not be available in the constructor.
if (_needsInit) {
_needsInit = false;
base[_propKey] = _initKey;
Value = _initValue;
}
}
//
// Properties
//
[ConfigurationProperty("key", Options = ConfigurationPropertyOptions.IsKey, DefaultValue = "")]
public string Key {
get {
return (string)base[_propKey];
}
}
[ConfigurationProperty("value", DefaultValue = "")]
public string Value {
get {
return (string)base[_propValue];
}
set {
base[_propValue] = value;
}
}
}
}
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