Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Sys / System / Configuration / Sections / ClientSettingsSection.cs / 1 / ClientSettingsSection.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; ////// ConfigurationSection class for sections that store client settings. /// public sealed class ClientSettingsSection : ConfigurationSection { private static ConfigurationPropertyCollection _properties; private static readonly ConfigurationProperty _propSettings = new ConfigurationProperty(null, typeof(SettingElementCollection), null, ConfigurationPropertyOptions.IsDefaultCollection); static ClientSettingsSection () { _properties = new ConfigurationPropertyCollection(); _properties.Add(_propSettings); } public ClientSettingsSection () { } protected override ConfigurationPropertyCollection Properties { get { return _properties; } } ///[ConfigurationProperty("", IsDefaultCollection = true)] public SettingElementCollection Settings { get { return (SettingElementCollection) base[_propSettings]; } } } public sealed class SettingElementCollection : ConfigurationElementCollection { public override ConfigurationElementCollectionType CollectionType { get { return ConfigurationElementCollectionType.BasicMap; } } protected override string ElementName { get { return "setting"; } } protected override ConfigurationElement CreateNewElement() { return new SettingElement(); } protected override object GetElementKey(ConfigurationElement element) { return ((SettingElement)element).Key; } public SettingElement Get(string elementKey) { return (SettingElement) BaseGet(elementKey); } public void Add(SettingElement element) { BaseAdd(element); } public void Remove(SettingElement element) { BaseRemove(GetElementKey(element)); } public void Clear() { BaseClear(); } } public sealed class SettingElement : ConfigurationElement { private static ConfigurationPropertyCollection _properties; private static readonly ConfigurationProperty _propName = new ConfigurationProperty("name", typeof(string),"",ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey); private static readonly ConfigurationProperty _propSerializeAs = new ConfigurationProperty("serializeAs", typeof(SettingsSerializeAs),SettingsSerializeAs.String,ConfigurationPropertyOptions.IsRequired); private static readonly ConfigurationProperty _propValue = new ConfigurationProperty("value", typeof(SettingValueElement),null,ConfigurationPropertyOptions.IsRequired); private static XmlDocument doc = new XmlDocument(); static SettingElement() { // Property initialization _properties = new ConfigurationPropertyCollection(); _properties.Add(_propName); _properties.Add(_propSerializeAs); _properties.Add(_propValue); } public SettingElement() { } public SettingElement(String name, SettingsSerializeAs serializeAs) : this() { Name = name; SerializeAs = serializeAs; } internal string Key { get { return Name; } } public override bool Equals(object settings) { SettingElement u = settings as SettingElement; return (u != null && base.Equals(settings) && Object.Equals(u.Value, Value)); } public override int GetHashCode() { return base.GetHashCode() ^ Value.GetHashCode(); } protected override ConfigurationPropertyCollection Properties { get { return _properties; } } [ConfigurationProperty("name", IsRequired = true, IsKey = true, DefaultValue = "")] public string Name { get { return (string)base[_propName]; } set { base[_propName] = value; } } [ConfigurationProperty("serializeAs", IsRequired = true, DefaultValue = SettingsSerializeAs.String)] public SettingsSerializeAs SerializeAs { get { return (SettingsSerializeAs) base[_propSerializeAs]; } set { base[_propSerializeAs] = value; } } [ConfigurationProperty("value", IsRequired = true, DefaultValue = null)] public SettingValueElement Value { get { return (SettingValueElement) base[_propValue]; } set { base[_propValue] = value; } } } public sealed class SettingValueElement : ConfigurationElement { private static ConfigurationPropertyCollection _properties; private static XmlDocument doc = new XmlDocument(); private XmlNode _valueXml; private bool isModified = false; protected override ConfigurationPropertyCollection Properties { get { if (_properties == null) { _properties = new ConfigurationPropertyCollection(); } return _properties; } } public XmlNode ValueXml { get { return _valueXml; } set { _valueXml = value; isModified = true; } } protected override void DeserializeElement(XmlReader reader, bool serializeCollectionKey) { ValueXml = doc.ReadNode(reader); } public override bool Equals(object settingValue) { SettingValueElement u = settingValue as SettingValueElement; return (u != null && Object.Equals(u.ValueXml, ValueXml)); } public override int GetHashCode() { return ValueXml.GetHashCode(); } protected override bool IsModified() { return isModified; } protected override void ResetModified() { isModified = false; } protected override bool SerializeToXmlElement(XmlWriter writer, string elementName) { if (ValueXml != null) { if (writer != null) { ValueXml.WriteTo(writer); } return true; } return false; } protected override void Reset(ConfigurationElement parentElement) { base.Reset(parentElement); ValueXml = ((SettingValueElement) parentElement).ValueXml; } protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode) { base.Unmerge(sourceElement, parentElement, saveMode); ValueXml = ((SettingValueElement) sourceElement).ValueXml; } } }
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