KeyValueConfigurationElement.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / KeyValueConfigurationElement.cs / 1305376 / KeyValueConfigurationElement.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

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; 
            }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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