Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / Diagnostics / SwitchElementsCollection.cs / 1305376 / SwitchElementsCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Configuration; using System.Collections; using System.Collections.Specialized; using System.Xml; 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]; } } // Our optional attributes implementation is little convoluted as there is // no such firsclass mechanism from the config system. We basically cache // any "unrecognized" attribute here and serialize it out later. protected override bool OnDeserializeUnrecognizedAttribute(String name, String value) { Attributes.Add(name, value); return true; } // We need to serialize optional attributes here, a better place would have // been inside SerializeElement but the base class implementation from // ConfigurationElement doesn't take into account for derived class doing // extended serialization, it basically writes out child element that // forces the element closing syntax, so any attribute serialization needs // to happen before normal element serialization from ConfigurationElement. // This means we would write out custom attributes ahead of normal ones. // The other alternative would be to re-implement the entire routine here // which is an overkill and a maintenance issue. protected override void PreSerialize(XmlWriter writer) { if (_attributes != null) { IDictionaryEnumerator e = _attributes.GetEnumerator(); while (e.MoveNext()) { string xmlValue = (string)e.Value; string xmlName = (string)e.Key; if ((xmlValue != null) && (writer != null)) { writer.WriteAttributeString(xmlName, xmlValue); } } } } // Account for optional attributes from custom listeners. protected override bool SerializeElement(XmlWriter writer, bool serializeCollectionKey) { bool DataToWrite = base.SerializeElement(writer, serializeCollectionKey); DataToWrite = DataToWrite || ((_attributes != null) && (_attributes.Count > 0)); return DataToWrite; } protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode) { base.Unmerge(sourceElement, parentElement, saveMode); // Unmerge the optional attributes cache as well SwitchElement le = sourceElement as SwitchElement; if ((le != null) && (le._attributes != null)) this._attributes = le._attributes; } 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); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Configuration; using System.Collections; using System.Collections.Specialized; using System.Xml; 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]; } } // Our optional attributes implementation is little convoluted as there is // no such firsclass mechanism from the config system. We basically cache // any "unrecognized" attribute here and serialize it out later. protected override bool OnDeserializeUnrecognizedAttribute(String name, String value) { Attributes.Add(name, value); return true; } // We need to serialize optional attributes here, a better place would have // been inside SerializeElement but the base class implementation from // ConfigurationElement doesn't take into account for derived class doing // extended serialization, it basically writes out child element that // forces the element closing syntax, so any attribute serialization needs // to happen before normal element serialization from ConfigurationElement. // This means we would write out custom attributes ahead of normal ones. // The other alternative would be to re-implement the entire routine here // which is an overkill and a maintenance issue. protected override void PreSerialize(XmlWriter writer) { if (_attributes != null) { IDictionaryEnumerator e = _attributes.GetEnumerator(); while (e.MoveNext()) { string xmlValue = (string)e.Value; string xmlName = (string)e.Key; if ((xmlValue != null) && (writer != null)) { writer.WriteAttributeString(xmlName, xmlValue); } } } } // Account for optional attributes from custom listeners. protected override bool SerializeElement(XmlWriter writer, bool serializeCollectionKey) { bool DataToWrite = base.SerializeElement(writer, serializeCollectionKey); DataToWrite = DataToWrite || ((_attributes != null) && (_attributes.Count > 0)); return DataToWrite; } protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode) { base.Unmerge(sourceElement, parentElement, saveMode); // Unmerge the optional attributes cache as well SwitchElement le = sourceElement as SwitchElement; if ((le != null) && (le._attributes != null)) this._attributes = le._attributes; } 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); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Inline.cs
- XmlMemberMapping.cs
- TypeNameParser.cs
- CompressStream.cs
- URLAttribute.cs
- NullRuntimeConfig.cs
- NavigationPropertyEmitter.cs
- SecurityHelper.cs
- MethodCallConverter.cs
- MailBnfHelper.cs
- XPathConvert.cs
- ExtentCqlBlock.cs
- GlobalEventManager.cs
- MediaPlayerState.cs
- SelectorItemAutomationPeer.cs
- EntitySqlQueryBuilder.cs
- PropertyTab.cs
- CharEnumerator.cs
- Propagator.JoinPropagator.cs
- EventProvider.cs
- DataGridViewCellValidatingEventArgs.cs
- ComponentCommands.cs
- Parser.cs
- MsmqNonTransactedPoisonHandler.cs
- CompoundFileIOPermission.cs
- AuthenticationConfig.cs
- SEHException.cs
- _SSPISessionCache.cs
- XXXOnTypeBuilderInstantiation.cs
- IgnoreFileBuildProvider.cs
- LicenseProviderAttribute.cs
- CrossAppDomainChannel.cs
- Properties.cs
- QueueTransferProtocol.cs
- PropertyInformation.cs
- GlobalItem.cs
- util.cs
- CmsInterop.cs
- ProcessHostFactoryHelper.cs
- XmlILIndex.cs
- ExpandableObjectConverter.cs
- ProviderManager.cs
- NameNode.cs
- DataGridRow.cs
- CommaDelimitedStringAttributeCollectionConverter.cs
- RegexStringValidator.cs
- securestring.cs
- TransformGroup.cs
- ProcessHostFactoryHelper.cs
- PackageStore.cs
- SerialReceived.cs
- ConnectionManagementElement.cs
- ReferenceCountedObject.cs
- AudioFormatConverter.cs
- XmlAnyAttributeAttribute.cs
- ActivityBuilder.cs
- DataGridPreparingCellForEditEventArgs.cs
- PersistenceException.cs
- FontDialog.cs
- NativeMethods.cs
- ColumnProvider.cs
- SqlConnectionFactory.cs
- SchemaReference.cs
- TraceUtils.cs
- DataDocumentXPathNavigator.cs
- TTSEvent.cs
- BrushValueSerializer.cs
- ScriptReferenceEventArgs.cs
- JsonCollectionDataContract.cs
- DescendantQuery.cs
- UnwrappedTypesXmlSerializerManager.cs
- FixedSOMLineCollection.cs
- BufferedGraphics.cs
- SiteOfOriginPart.cs
- TextAutomationPeer.cs
- XmlDataCollection.cs
- ByteStreamMessageEncoderFactory.cs
- SqlReorderer.cs
- JulianCalendar.cs
- HttpPostedFile.cs
- SettingsPropertyCollection.cs
- ToolStripMenuItem.cs
- MulticastDelegate.cs
- VBIdentifierNameEditor.cs
- UnknownWrapper.cs
- SourceItem.cs
- ChannelManager.cs
- TimeManager.cs
- WebException.cs
- LayoutTable.cs
- ScalarOps.cs
- WebPartMinimizeVerb.cs
- ExtractedStateEntry.cs
- FlowPanelDesigner.cs
- DataGridBoolColumn.cs
- CustomErrorCollection.cs
- _SecureChannel.cs
- CodeExpressionCollection.cs
- MsmqProcessProtocolHandler.cs
- coordinator.cs