Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / 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
- DbConnectionPool.cs
- ProcessHostFactoryHelper.cs
- DesignerDataRelationship.cs
- Rotation3D.cs
- ConsoleCancelEventArgs.cs
- ParameterDataSourceExpression.cs
- WebPartDeleteVerb.cs
- FlowDocumentScrollViewer.cs
- ControlHelper.cs
- JsonServiceDocumentSerializer.cs
- HttpResponseInternalWrapper.cs
- TypeConverterValueSerializer.cs
- TemplateControl.cs
- NamespaceMapping.cs
- Oci.cs
- QueryResults.cs
- FusionWrap.cs
- SymmetricSecurityProtocol.cs
- CommandField.cs
- UnhandledExceptionEventArgs.cs
- ListArgumentProvider.cs
- WindowsAuthenticationEventArgs.cs
- PeerNodeTraceRecord.cs
- EventLogEntryCollection.cs
- StringComparer.cs
- DecimalAnimation.cs
- URLBuilder.cs
- InlineCollection.cs
- LingerOption.cs
- ChildrenQuery.cs
- XamlWriter.cs
- metadatamappinghashervisitor.cs
- CfgSemanticTag.cs
- Quaternion.cs
- TextServicesDisplayAttribute.cs
- DeflateStream.cs
- ReadWriteObjectLock.cs
- GridProviderWrapper.cs
- DurableEnlistmentState.cs
- ByValueEqualityComparer.cs
- OutOfProcStateClientManager.cs
- TypedDataSetSchemaImporterExtension.cs
- ButtonField.cs
- ParamArrayAttribute.cs
- DoubleConverter.cs
- NavigationEventArgs.cs
- GenericAuthenticationEventArgs.cs
- DataSourceView.cs
- GridPattern.cs
- ReadOnlyHierarchicalDataSourceView.cs
- InfoCardAsymmetricCrypto.cs
- DependencyPropertyAttribute.cs
- FixedSOMLineCollection.cs
- X509Chain.cs
- Trace.cs
- ResXFileRef.cs
- PerformanceCounterPermissionAttribute.cs
- ProcessingInstructionAction.cs
- DetailsViewAutoFormat.cs
- PageParserFilter.cs
- CultureSpecificCharacterBufferRange.cs
- ImageAnimator.cs
- AudioFormatConverter.cs
- NodeLabelEditEvent.cs
- PropertyToken.cs
- PopupRootAutomationPeer.cs
- WindowsStreamSecurityElement.cs
- DocumentSchemaValidator.cs
- ActiveXSerializer.cs
- ToolboxDataAttribute.cs
- ListCollectionView.cs
- DesignerMetadata.cs
- GeometryDrawing.cs
- DataGridViewCellValidatingEventArgs.cs
- ConfigurationLocationCollection.cs
- InternalBufferOverflowException.cs
- DragDeltaEventArgs.cs
- HtmlTableCellCollection.cs
- HwndAppCommandInputProvider.cs
- IssuedTokenClientElement.cs
- WebScriptEnablingElement.cs
- SupportsEventValidationAttribute.cs
- StylusEditingBehavior.cs
- FixedSOMPageConstructor.cs
- UserPreferenceChangingEventArgs.cs
- TextEditorThreadLocalStore.cs
- DocComment.cs
- BitmapEncoder.cs
- TextRangeEditTables.cs
- DeferredElementTreeState.cs
- VoiceSynthesis.cs
- GeometryHitTestResult.cs
- WebConfigurationManager.cs
- BindingFormattingDialog.cs
- RoutedEventHandlerInfo.cs
- SiteMapSection.cs
- SupportingTokenSpecification.cs
- ZipIOExtraFieldPaddingElement.cs
- FastPropertyAccessor.cs
- GuidConverter.cs