Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartTransformerAttribute.cs / 1 / WebPartTransformerAttribute.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.Collections.Generic; using System.ComponentModel; using System.Diagnostics; using System.Security.Permissions; [AttributeUsage(AttributeTargets.Class)] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class WebPartTransformerAttribute : Attribute { // Cache provider and consumer types for each WebPartTransformer type. We store an array of // 2 Types (consumer, provider) indexed by transformer type. private static readonly Hashtable transformerCache = Hashtable.Synchronized(new Hashtable()); private Type _consumerType; private Type _providerType; public WebPartTransformerAttribute(Type consumerType, Type providerType) { if (consumerType == null) { throw new ArgumentNullException("consumerType"); } if (providerType == null) { throw new ArgumentNullException("providerType"); } _consumerType = consumerType; _providerType = providerType; } public Type ConsumerType { get { return _consumerType; } } public Type ProviderType { get { return _providerType; } } public static Type GetConsumerType(Type transformerType) { return GetTransformerTypes(transformerType)[0]; } public static Type GetProviderType(Type transformerType) { return GetTransformerTypes(transformerType)[1]; } ////// Returns the types a transformer can accept on its "connection points" /// private static Type[] GetTransformerTypes(Type transformerType) { if (transformerType == null) { throw new ArgumentNullException("transformerType"); } if (!transformerType.IsSubclassOf(typeof(WebPartTransformer))) { throw new InvalidOperationException( SR.GetString(SR.WebPartTransformerAttribute_NotTransformer, transformerType.FullName)); } Type[] types = (Type[])transformerCache[transformerType]; if (types == null) { types = GetTransformerTypesFromAttribute(transformerType); transformerCache[transformerType] = types; } return types; } private static Type[] GetTransformerTypesFromAttribute(Type transformerType) { Type[] types = new Type[2]; object[] attributes = transformerType.GetCustomAttributes(typeof(WebPartTransformerAttribute), true); // WebPartTransformerAttribute.AllowMultiple is false Debug.Assert(attributes.Length == 0 || attributes.Length == 1); if (attributes.Length == 1) { WebPartTransformerAttribute attribute = (WebPartTransformerAttribute)attributes[0]; if (attribute.ConsumerType == attribute.ProviderType) { throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerAttribute_SameTypes)); } types[0] = attribute.ConsumerType; types[1] = attribute.ProviderType; } else { throw new InvalidOperationException( SR.GetString(SR.WebPartTransformerAttribute_Missing, transformerType.FullName)); } return types; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.Collections.Generic; using System.ComponentModel; using System.Diagnostics; using System.Security.Permissions; [AttributeUsage(AttributeTargets.Class)] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class WebPartTransformerAttribute : Attribute { // Cache provider and consumer types for each WebPartTransformer type. We store an array of // 2 Types (consumer, provider) indexed by transformer type. private static readonly Hashtable transformerCache = Hashtable.Synchronized(new Hashtable()); private Type _consumerType; private Type _providerType; public WebPartTransformerAttribute(Type consumerType, Type providerType) { if (consumerType == null) { throw new ArgumentNullException("consumerType"); } if (providerType == null) { throw new ArgumentNullException("providerType"); } _consumerType = consumerType; _providerType = providerType; } public Type ConsumerType { get { return _consumerType; } } public Type ProviderType { get { return _providerType; } } public static Type GetConsumerType(Type transformerType) { return GetTransformerTypes(transformerType)[0]; } public static Type GetProviderType(Type transformerType) { return GetTransformerTypes(transformerType)[1]; } ////// Returns the types a transformer can accept on its "connection points" /// private static Type[] GetTransformerTypes(Type transformerType) { if (transformerType == null) { throw new ArgumentNullException("transformerType"); } if (!transformerType.IsSubclassOf(typeof(WebPartTransformer))) { throw new InvalidOperationException( SR.GetString(SR.WebPartTransformerAttribute_NotTransformer, transformerType.FullName)); } Type[] types = (Type[])transformerCache[transformerType]; if (types == null) { types = GetTransformerTypesFromAttribute(transformerType); transformerCache[transformerType] = types; } return types; } private static Type[] GetTransformerTypesFromAttribute(Type transformerType) { Type[] types = new Type[2]; object[] attributes = transformerType.GetCustomAttributes(typeof(WebPartTransformerAttribute), true); // WebPartTransformerAttribute.AllowMultiple is false Debug.Assert(attributes.Length == 0 || attributes.Length == 1); if (attributes.Length == 1) { WebPartTransformerAttribute attribute = (WebPartTransformerAttribute)attributes[0]; if (attribute.ConsumerType == attribute.ProviderType) { throw new InvalidOperationException(SR.GetString(SR.WebPartTransformerAttribute_SameTypes)); } types[0] = attribute.ConsumerType; types[1] = attribute.ProviderType; } else { throw new InvalidOperationException( SR.GetString(SR.WebPartTransformerAttribute_Missing, transformerType.FullName)); } return types; } } } // 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
- CompositeActivityCodeGenerator.cs
- SerializationException.cs
- DataObjectAttribute.cs
- CodeThrowExceptionStatement.cs
- HtmlShim.cs
- WorkflowPrinting.cs
- JsonReaderDelegator.cs
- SynchronizingStream.cs
- IEnumerable.cs
- PictureBoxDesigner.cs
- QilLoop.cs
- HandlerBase.cs
- ImagingCache.cs
- XmlSchemaSet.cs
- ReceiveMessageRecord.cs
- XamlTreeBuilder.cs
- ActivityDesignerResources.cs
- XmlSerializationGeneratedCode.cs
- CallbackBehaviorAttribute.cs
- TransactionFlowElement.cs
- Pair.cs
- ContextStack.cs
- QilFunction.cs
- GAC.cs
- ObservableCollectionDefaultValueFactory.cs
- FrameworkTemplate.cs
- DataBindingCollection.cs
- FontFamilyIdentifier.cs
- FileSecurity.cs
- CodeMemberProperty.cs
- DataTableNewRowEvent.cs
- NameValueSectionHandler.cs
- Converter.cs
- XmlILModule.cs
- Validator.cs
- xmlsaver.cs
- BaseDataListPage.cs
- Publisher.cs
- DesignerPerfEventProvider.cs
- documentation.cs
- PropertyRef.cs
- ProfessionalColors.cs
- LightweightEntityWrapper.cs
- SafeHandles.cs
- MediaCommands.cs
- WebPartZoneAutoFormat.cs
- BitmapEffectInput.cs
- SqlDataSource.cs
- SyntaxCheck.cs
- GeneratedCodeAttribute.cs
- StyleTypedPropertyAttribute.cs
- RefreshPropertiesAttribute.cs
- KeysConverter.cs
- ListBox.cs
- HitTestParameters.cs
- EntityClassGenerator.cs
- MetadataArtifactLoaderXmlReaderWrapper.cs
- IndexedString.cs
- OptimizerPatterns.cs
- ObjectAnimationUsingKeyFrames.cs
- NumericUpDownAcceleration.cs
- EventMappingSettingsCollection.cs
- XmlSchemaProviderAttribute.cs
- AttributeSetAction.cs
- DataGridItem.cs
- AnnotationComponentChooser.cs
- X509SecurityTokenProvider.cs
- WebPartVerbsEventArgs.cs
- CodeExporter.cs
- SID.cs
- ScriptControlDescriptor.cs
- DispatcherProcessingDisabled.cs
- X500Name.cs
- ActionFrame.cs
- KnownTypesProvider.cs
- RemotingException.cs
- ThreadStaticAttribute.cs
- TextServicesDisplayAttributePropertyRanges.cs
- ShimAsPublicXamlType.cs
- DynamicResourceExtensionConverter.cs
- NamedPipeTransportSecurityElement.cs
- SortDescriptionCollection.cs
- TextRenderer.cs
- TableColumnCollectionInternal.cs
- ConsoleKeyInfo.cs
- HttpClientCertificate.cs
- UserPersonalizationStateInfo.cs
- ProtocolsConfigurationHandler.cs
- SqlConnectionString.cs
- AccessibleObject.cs
- ObjectContext.cs
- RefreshEventArgs.cs
- SharedPersonalizationStateInfo.cs
- HostedHttpContext.cs
- ArgumentNullException.cs
- FixedTextBuilder.cs
- ListDictionaryInternal.cs
- _ChunkParse.cs
- CursorEditor.cs
- DispatcherExceptionEventArgs.cs