SwitchElementsCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / CompMod / System / Diagnostics / SwitchElementsCollection.cs / 1 / SwitchElementsCollection.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 
using System.Configuration;
using System.Collections; 
using System.Collections.Specialized; 

namespace System.Diagnostics { 
    [ConfigurationCollection(typeof(SwitchElement))]
    internal class SwitchElementsCollection : ConfigurationElementCollection {

        new public SwitchElement this[string name] { 
            get {
                return (SwitchElement) BaseGet(name); 
            } 
        }
 
        public override ConfigurationElementCollectionType CollectionType {
            get {
                return ConfigurationElementCollectionType.AddRemoveClearMap;
            } 
        }
 
        protected override ConfigurationElement CreateNewElement() { 
            return new SwitchElement();
        } 

        protected override Object GetElementKey(ConfigurationElement element) {
            return ((SwitchElement) element).Name;
        } 
    }
 
    internal class SwitchElement : ConfigurationElement { 
        private static readonly ConfigurationPropertyCollection _properties;
        private static readonly ConfigurationProperty _propName = new ConfigurationProperty("name", typeof(string), "", ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey); 
        private static readonly ConfigurationProperty _propValue = new ConfigurationProperty("value", typeof(string), null, ConfigurationPropertyOptions.IsRequired);

        private Hashtable _attributes;
 
        static SwitchElement(){
            _properties = new ConfigurationPropertyCollection(); 
            _properties.Add(_propName); 
            _properties.Add(_propValue);
        } 

        public Hashtable Attributes {
            get {
                if (_attributes == null) 
                    _attributes = new Hashtable(StringComparer.OrdinalIgnoreCase);
                return _attributes; 
            } 
        }
 
        [ConfigurationProperty("name", DefaultValue = "", IsRequired = true, IsKey = true)]
        public string Name {
            get {
                return (string) this[_propName]; 
            }
        } 
 
        protected override ConfigurationPropertyCollection Properties {
            get { 
                return _properties;
            }
        }
 
        [ConfigurationProperty("value", IsRequired = true)]
        public string Value { 
            get { 
                return (string) this[_propValue];
            } 
        }

        protected override bool OnDeserializeUnrecognizedAttribute(String name, String value)
        { 
            ConfigurationProperty _propDynamic = new ConfigurationProperty(name, typeof(string), value);
            _properties.Add(_propDynamic); 
            base[_propDynamic] = value; // Add them to the property bag 
            Attributes.Add(name, value);
            return true; 
        }

        internal void ResetProperties()
        { 
            // blow away any UnrecognizedAttributes that we have deserialized earlier
            if (_attributes != null) { 
                _attributes.Clear(); 
                _properties.Clear();
                _properties.Add(_propName); 
                _properties.Add(_propValue);
            }
        }
    } 
}

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