Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / System / Data / Common / DbProviderConfigurationHandler.cs / 1 / DbProviderConfigurationHandler.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Collections; using System.Collections.Specialized; using System.Configuration; using System.Data; using System.Diagnostics; using System.Globalization; using System.Xml; // this calss can be used by any provider to support a provider specific configuration section. The configutation // Object is a NameValueCollection //// // //// // this class is delayed created, use ConfigurationManager.GetSection("system.data.// //// ") to obtain #if WINFSInternalOnly internal #else public #endif class DbProviderConfigurationHandler : IConfigurationSectionHandler { // V1.2.3300 internal const string settings = "settings"; public DbProviderConfigurationHandler() { // V1.2.3300 } /* static internal void CheckForChildNodes(XmlNode node) { if (node.HasChildNodes) { throw ADP.ConfigBaseNoChildNodes(node.FirstChild); } } static private void CheckForNonElement(XmlNode node) { if (XmlNodeType.Element != node.NodeType) { throw ADP.ConfigBaseElementsOnly(node); } } static internal void CheckForUnrecognizedAttributes(XmlNode node) { if (0 != node.Attributes.Count) { throw ADP.ConfigUnrecognizedAttributes(node); } } */ static internal NameValueCollection CloneParent(NameValueCollection parentConfig) { if (null == parentConfig) { parentConfig = new NameValueCollection(); } else { parentConfig = new NameValueCollection(parentConfig); } return parentConfig; } virtual public object Create(object parent, object configContext, XmlNode section) { // V1.2.3300 #if DEBUG try { #endif return CreateStatic(parent, configContext, section); #if DEBUG } catch(Exception e) { // if (ADP.IsCatchableExceptionType(e)) { ADP.TraceExceptionWithoutRethrow(e); // it will be rethrown } throw; } #endif } static internal object CreateStatic(object parent, object configContext, XmlNode section) { object config = parent; if (null != section) { config = CloneParent(parent as NameValueCollection); bool foundSettings = false; HandlerBase.CheckForUnrecognizedAttributes(section); foreach (XmlNode child in section.ChildNodes) { if (HandlerBase.IsIgnorableAlsoCheckForNonElement(child)) { continue; } string sectionGroup = child.Name; switch(sectionGroup) { case DbProviderConfigurationHandler.settings: if (foundSettings) { throw ADP.ConfigSectionsUnique(DbProviderConfigurationHandler.settings); } foundSettings= true; DbProviderDictionarySectionHandler.CreateStatic(config as NameValueCollection, configContext, child); break; default: throw ADP.ConfigUnrecognizedElement(child); } } } return config; } /* // skip whitespace and comments, throws if non-element static internal bool IsIgnorableAlsoCheckForNonElement(XmlNode node) { if ((XmlNodeType.Comment == node.NodeType) || (XmlNodeType.Whitespace == node.NodeType)) { return true; } HandlerBase.CheckForNonElement(node); return false; } */ static internal string RemoveAttribute(XmlNode node, string name) { XmlNode attribute = node.Attributes.RemoveNamedItem(name); if (null == attribute) { throw ADP.ConfigRequiredAttributeMissing(name, node); } string value = attribute.Value; if (0 == value.Length) { throw ADP.ConfigRequiredAttributeEmpty(name, node); } return value; } // based off of DictionarySectionHandler sealed private class DbProviderDictionarySectionHandler/* : IConfigurationSectionHandler*/ { static internal NameValueCollection CreateStatic(NameValueCollection config, Object context, XmlNode section) { if (null != section) { HandlerBase.CheckForUnrecognizedAttributes(section); } foreach (XmlNode child in section.ChildNodes) { if (HandlerBase.IsIgnorableAlsoCheckForNonElement(child)) { continue; } switch(child.Name) { case "add": HandleAdd(child, config); break; case "remove": HandleRemove(child, config); break; case "clear": HandleClear(child, config); break; default: throw ADP.ConfigUnrecognizedElement(child); } } return config; } static private void HandleAdd(XmlNode child, NameValueCollection config) { // should add vaildate that setting is a known supported setting // (i.e. that the value of the name attribute is is good) HandlerBase.CheckForChildNodes(child); string name = RemoveAttribute(child, "name"); string value = RemoveAttribute(child, "value"); HandlerBase.CheckForUnrecognizedAttributes(child); config.Add(name,value); } static private void HandleRemove(XmlNode child, NameValueCollection config) { HandlerBase.CheckForChildNodes(child); String name = RemoveAttribute(child, "name"); HandlerBase.CheckForUnrecognizedAttributes(child); config.Remove(name); } static private void HandleClear(XmlNode child, NameValueCollection config) { HandlerBase.CheckForChildNodes(child); HandlerBase.CheckForUnrecognizedAttributes(child); config.Clear(); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- BrowserCapabilitiesCodeGenerator.cs
- PackageRelationshipCollection.cs
- StrokeCollection2.cs
- MarkerProperties.cs
- Help.cs
- Vector.cs
- SHA512.cs
- SchemaMapping.cs
- counter.cs
- DataListItem.cs
- Clause.cs
- TabletDevice.cs
- HtmlInputPassword.cs
- StorageSetMapping.cs
- HotCommands.cs
- DefaultProxySection.cs
- MetadataItemEmitter.cs
- TailCallAnalyzer.cs
- SwitchDesigner.xaml.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- DefaultPropertyAttribute.cs
- CellConstant.cs
- ImageMapEventArgs.cs
- EventPropertyMap.cs
- PointCollectionValueSerializer.cs
- MarkupCompilePass1.cs
- SqlXmlStorage.cs
- ExpressionVisitorHelpers.cs
- DisableDpiAwarenessAttribute.cs
- PositiveTimeSpanValidatorAttribute.cs
- FileInfo.cs
- RequestNavigateEventArgs.cs
- SafeNativeMethodsCLR.cs
- MsmqIntegrationProcessProtocolHandler.cs
- SecurityRequiresReviewAttribute.cs
- X500Name.cs
- NamespaceDisplayAutomationPeer.cs
- CodeTypeDeclarationCollection.cs
- Timer.cs
- DataServiceQueryOfT.cs
- KeyedHashAlgorithm.cs
- QueueProcessor.cs
- ConcurrentQueue.cs
- XmlSchemaImport.cs
- SqlTrackingWorkflowInstance.cs
- FastEncoder.cs
- ListenerAdapter.cs
- DataKey.cs
- BehaviorEditorPart.cs
- ObjectDataSourceStatusEventArgs.cs
- DataFormats.cs
- ImageIndexConverter.cs
- PropertyInformationCollection.cs
- _NetworkingPerfCounters.cs
- CodeRegionDirective.cs
- XmlArrayItemAttribute.cs
- HealthMonitoringSectionHelper.cs
- UpDownBase.cs
- ZipIOBlockManager.cs
- CroppedBitmap.cs
- keycontainerpermission.cs
- RoutedEvent.cs
- WindowsPrincipal.cs
- HttpResponse.cs
- ModuleBuilder.cs
- FilterElement.cs
- MenuAutomationPeer.cs
- WebServicesInteroperability.cs
- ResourceAttributes.cs
- DbConnectionPoolGroupProviderInfo.cs
- FrameworkContextData.cs
- XmlRootAttribute.cs
- TextRange.cs
- LicenseException.cs
- XmlQueryTypeFactory.cs
- RegexCaptureCollection.cs
- SurrogateEncoder.cs
- ReadWriteSpinLock.cs
- ObjectListCommandCollection.cs
- ManagementOperationWatcher.cs
- FrameworkElement.cs
- FtpCachePolicyElement.cs
- TypeBuilderInstantiation.cs
- WhitespaceSignificantCollectionAttribute.cs
- GacUtil.cs
- _NtlmClient.cs
- PublisherIdentityPermission.cs
- InfiniteTimeSpanConverter.cs
- ConnectionStringEditor.cs
- WorkflowMarkupSerializationProvider.cs
- XmlMapping.cs
- SkewTransform.cs
- IfAction.cs
- TraversalRequest.cs
- TemplateField.cs
- FindResponse.cs
- WindowsIdentity.cs
- TemplateKeyConverter.cs
- XmlWriterTraceListener.cs
- WebPartHelpVerb.cs