Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / ProviderSettings.cs / 1305376 / ProviderSettings.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; using System.Globalization; public sealed class ProviderSettings : ConfigurationElement { private readonly ConfigurationProperty _propName = new ConfigurationProperty( "name", typeof( string ), null, // no reasonable default null, // use default converter ConfigurationProperty.NonEmptyStringValidator, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey); private readonly ConfigurationProperty _propType = new ConfigurationProperty("type", typeof(String), "", ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsTypeStringTransformationRequired); private ConfigurationPropertyCollection _properties; private NameValueCollection _PropertyNameCollection = null; public ProviderSettings() { _properties = new ConfigurationPropertyCollection(); _properties.Add(_propName); _properties.Add(_propType); _PropertyNameCollection = null; } public ProviderSettings(String name, String type) : this() { Name = name; Type = type; } protected internal override ConfigurationPropertyCollection Properties { get { UpdatePropertyCollection(); return _properties; } } protected internal override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode) { ProviderSettings parentProviders = parentElement as ProviderSettings; if (parentProviders != null) parentProviders.UpdatePropertyCollection(); // before reseting make sure the bag is filled in ProviderSettings sourceProviders = sourceElement as ProviderSettings; if (sourceProviders != null) sourceProviders.UpdatePropertyCollection(); // before reseting make sure the bag is filled in base.Unmerge(sourceElement, parentElement, saveMode); UpdatePropertyCollection(); } protected internal override void Reset(ConfigurationElement parentElement) { ProviderSettings parentProviders = parentElement as ProviderSettings; if (parentProviders != null) parentProviders.UpdatePropertyCollection(); // before reseting make sure the bag is filled in base.Reset(parentElement); } internal bool UpdatePropertyCollection() { bool bIsModified = false; ArrayList removeList = null; if (_PropertyNameCollection != null) { // remove any data that has been delete from the collection foreach (ConfigurationProperty prop in _properties) { if (prop.Name != "name" && prop.Name != "type") { if (_PropertyNameCollection.Get(prop.Name) == null) { // _properties.Remove(prop.Name); if (removeList == null) removeList = new ArrayList(); if ((Values.GetConfigValue(prop.Name).ValueFlags & ConfigurationValueFlags.Locked) == 0) { removeList.Add(prop.Name); bIsModified = true; } } } } if (removeList != null) { foreach (string propName in removeList) { _properties.Remove(propName); } } // then copy any data that has been changed in the collection foreach (string Key in _PropertyNameCollection) { string valueInCollection = _PropertyNameCollection[Key]; string valueInBag = GetProperty(Key); if (valueInBag == null || valueInCollection != valueInBag) // add new property { SetProperty(Key, valueInCollection); bIsModified = true; } } } _PropertyNameCollection = null; return bIsModified; } protected internal override bool IsModified() { return UpdatePropertyCollection() || base.IsModified(); } [ConfigurationProperty("name", IsRequired = true, IsKey=true)] public String Name { get { return (String)base[_propName]; } set { base[_propName] = value; } } [ConfigurationProperty("type", IsRequired = true)] public String Type { get { return (String)base[_propType]; } set { base[_propType] = value; } } public NameValueCollection Parameters { get { if (_PropertyNameCollection == null) { lock (this) { if (_PropertyNameCollection == null) { _PropertyNameCollection = new NameValueCollection(StringComparer.Ordinal); foreach (object de in _properties) { ConfigurationProperty prop = (ConfigurationProperty)de; if (prop.Name != "name" && prop.Name != "type") _PropertyNameCollection.Add(prop.Name, (string)base[prop]); } } } } return (NameValueCollection)_PropertyNameCollection; } } private string GetProperty(string PropName) { if (_properties.Contains(PropName)) { ConfigurationProperty prop = _properties[PropName]; if(prop != null) return (string)base[prop]; } return null; } private bool SetProperty(string PropName,string value) { ConfigurationProperty SetPropName = null; if (_properties.Contains(PropName)) SetPropName = _properties[PropName]; else { SetPropName = new ConfigurationProperty(PropName, typeof(string), null); _properties.Add(SetPropName); } if (SetPropName != null) { base[SetPropName] = value; // Parameters[PropName] = value; return true; } else return false; } protected override bool OnDeserializeUnrecognizedAttribute(String name, String value) { ConfigurationProperty _propName = new ConfigurationProperty(name, typeof(string), value); _properties.Add(_propName); base[_propName] = value; // Add them to the property bag Parameters[name] = value; return true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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