Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / ConfigurationValues.cs / 1305376 / ConfigurationValues.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Configuration.Internal; using System.Collections; using System.Collections.Specialized; using System.Collections.Generic; using System.IO; using System.Reflection; using System.Security.Permissions; using System.Xml; using System.Globalization; using System.ComponentModel; using System.Security; using System.Text; namespace System.Configuration { internal class ConfigurationValues : NameObjectCollectionBase { private BaseConfigurationRecord _configRecord; private bool _containsElement; private bool _containsInvalidValue; internal ConfigurationValues() : base(StringComparer.Ordinal) { } // AssociateContext // // Associate a collection of values with a configRecord // internal void AssociateContext(BaseConfigurationRecord configRecord) { _configRecord = configRecord; // Associate with children foreach (ConfigurationElement currentElement in ConfigurationElements) { currentElement.AssociateContext(_configRecord); } } internal bool Contains(string key) { return (BaseGet(key) != null); } internal string GetKey(int index) { return BaseGetKey(index); } /* internal ConfigurationValue GetConfigValue(int index) { return (ConfigurationValue)BaseGet(BaseGetKey(index)); } */ internal ConfigurationValue GetConfigValue(string key) { return (ConfigurationValue)BaseGet(key); } internal ConfigurationValue GetConfigValue(int index) { return (ConfigurationValue)BaseGet(index); } internal PropertySourceInfo GetSourceInfo(string key) { ConfigurationValue configurationValue = GetConfigValue(key); if (configurationValue != null) { return configurationValue.SourceInfo; } else { return null; } } internal void ChangeSourceInfo(string key, PropertySourceInfo sourceInfo) { ConfigurationValue configurationValue = GetConfigValue(key); if (configurationValue != null) { configurationValue.SourceInfo = sourceInfo; } } private ConfigurationValue CreateConfigValue(object value, ConfigurationValueFlags valueFlags, PropertySourceInfo sourceInfo) { if (value != null) { if (value is ConfigurationElement) { _containsElement = true; ((ConfigurationElement)value).AssociateContext(_configRecord); } else if (value is InvalidPropValue) { _containsInvalidValue = true; } } ConfigurationValue configValue = new ConfigurationValue(value, valueFlags, sourceInfo); return configValue; } internal void SetValue(string key, object value, ConfigurationValueFlags valueFlags, PropertySourceInfo sourceInfo) { ConfigurationValue configValue = CreateConfigValue(value, valueFlags, sourceInfo); BaseSet(key, configValue); } #if UNUSED_CODE private void SetValue(int index, object value, ConfigurationValueFlags valueFlags, PropertySourceInfo sourceInfo) { ConfigurationValue configValue = CreateConfigValue(value, valueFlags, sourceInfo); BaseSet(index, configValue); } #endif internal object this[string key] { get { ConfigurationValue configValue = GetConfigValue(key); if (configValue != null) { return configValue.Value; } else { return null; } } set { SetValue(key, value, ConfigurationValueFlags.Modified, null); } } internal object this[int index] { get { ConfigurationValue configValue = GetConfigValue(index); if (configValue != null) { return configValue.Value; } else { return null; } } #if UNUSED_CODE set { SetValue(index, value, ConfigurationValueFlags.Modified, null); } #endif } internal void Clear() { BaseClear(); } internal object SyncRoot { get { return this; } } internal ConfigurationValueFlags RetrieveFlags(string key) { ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key); if (configurationValue != null) { return configurationValue.ValueFlags; } else { return ConfigurationValueFlags.Default; } } internal bool IsModified(string key) { ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key); if (configurationValue != null) { return ((configurationValue.ValueFlags & ConfigurationValueFlags.Modified) != 0); } else { return false; } } internal bool IsInherited(string key) { ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key); if (configurationValue != null) { return ((configurationValue.ValueFlags & ConfigurationValueFlags.Inherited) != 0); } else { return false; } } internal IEnumerable ConfigurationElements { get { if (_containsElement) { return new ConfigurationElementsCollection(this); } else { return EmptyCollectionInstance; } } } internal IEnumerable InvalidValues { get { if (_containsInvalidValue) { return new InvalidValuesCollection(this); } else { return EmptyCollectionInstance; } } } static IEnumerable s_emptyCollection; static IEnumerable EmptyCollectionInstance { get { if (s_emptyCollection == null) { s_emptyCollection = new EmptyCollection(); } return s_emptyCollection; } } private class EmptyCollection : IEnumerable { IEnumerator _emptyEnumerator; private class EmptyCollectionEnumerator : IEnumerator { bool IEnumerator.MoveNext() { return false; } Object IEnumerator.Current { get { return null; } } void IEnumerator.Reset() { } } internal EmptyCollection() { _emptyEnumerator = new EmptyCollectionEnumerator(); } IEnumerator IEnumerable.GetEnumerator() { return _emptyEnumerator; } } private class ConfigurationElementsCollection : IEnumerable { ConfigurationValues _values; internal ConfigurationElementsCollection(ConfigurationValues values) { _values = values; } IEnumerator IEnumerable.GetEnumerator() { if (_values._containsElement) { for (int index = 0; index < _values.Count; index++) { object value = _values[index]; if (value is ConfigurationElement) { yield return value; } } } } } private class InvalidValuesCollection : IEnumerable { ConfigurationValues _values; internal InvalidValuesCollection(ConfigurationValues values) { _values = values; } IEnumerator IEnumerable.GetEnumerator() { if (_values._containsInvalidValue) { for (int index = 0; index < _values.Count; index++) { object value = _values[index]; if (value is InvalidPropValue) { yield return value; } } } } } /* internal bool IsLocked(string key) { ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key); if (configurationValue != null) return ((configurationValue.ValueFlags & ConfigurationValueFlags.Locked) != 0); else return false; } internal bool IsReadOnly(string key) { ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key); if (configurationValue != null) return ((configurationValue.ValueFlags & ConfigurationValueFlags.ReadOnly) != 0); else return false; } */ } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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