Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebParts / WebPartTransformerAttribute.cs / 1305376 / 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; [AttributeUsage(AttributeTargets.Class)] 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
- DbBuffer.cs
- ListParaClient.cs
- ImageMapEventArgs.cs
- DataGridRowClipboardEventArgs.cs
- BitmapFrame.cs
- DrawingContextDrawingContextWalker.cs
- Permission.cs
- ServerIdentity.cs
- _OSSOCK.cs
- Odbc32.cs
- PriorityItem.cs
- ToolStripLabel.cs
- MethodCallTranslator.cs
- BuildProvidersCompiler.cs
- ProxyManager.cs
- DataList.cs
- PhotoPrintingIntent.cs
- Slider.cs
- Scene3D.cs
- GeometryGroup.cs
- FileReservationCollection.cs
- SafeLocalMemHandle.cs
- VersionedStreamOwner.cs
- Point.cs
- PixelFormats.cs
- ProcessProtocolHandler.cs
- DivideByZeroException.cs
- DuplicateWaitObjectException.cs
- IPAddress.cs
- TextContainerHelper.cs
- EnumerableRowCollectionExtensions.cs
- DataSourceControlBuilder.cs
- BamlCollectionHolder.cs
- WebServiceTypeData.cs
- MonthCalendar.cs
- XmlChildNodes.cs
- MediaTimeline.cs
- UserControlBuildProvider.cs
- SqlEnums.cs
- DataGridViewRowPrePaintEventArgs.cs
- Drawing.cs
- ObservableCollection.cs
- PaintEvent.cs
- NonBatchDirectoryCompiler.cs
- PaginationProgressEventArgs.cs
- BindingList.cs
- MultiTrigger.cs
- ToolStripOverflow.cs
- XmlSchema.cs
- _UncName.cs
- SQLBinary.cs
- FileUtil.cs
- BitConverter.cs
- TextDataBindingHandler.cs
- PictureBox.cs
- ParameterReplacerVisitor.cs
- XmlHierarchicalEnumerable.cs
- SelectionRangeConverter.cs
- IndicFontClient.cs
- MediaScriptCommandRoutedEventArgs.cs
- X509Utils.cs
- TypeTypeConverter.cs
- MemberAssignmentAnalysis.cs
- ResourcePart.cs
- TreeSet.cs
- LocalizabilityAttribute.cs
- ObjectQuery_EntitySqlExtensions.cs
- SafeNativeMethods.cs
- ChannelManagerBase.cs
- GridViewRowPresenter.cs
- UnsafeCollabNativeMethods.cs
- SafeRegistryHandle.cs
- HwndMouseInputProvider.cs
- Brush.cs
- TextEditorTyping.cs
- QuaternionConverter.cs
- X509CertificateChain.cs
- Utils.cs
- ReadOnlyDataSource.cs
- AuthenticateEventArgs.cs
- mactripleDES.cs
- BeginStoryboard.cs
- FilterException.cs
- CodeObjectCreateExpression.cs
- DesignerVerbCollection.cs
- SingleTagSectionHandler.cs
- DataGridViewRowErrorTextNeededEventArgs.cs
- PropertyInfoSet.cs
- HyperLinkDataBindingHandler.cs
- InvariantComparer.cs
- BooleanExpr.cs
- KeyedCollection.cs
- Debug.cs
- SqlFlattener.cs
- ExportOptions.cs
- SchemaExporter.cs
- GroupStyle.cs
- X509Certificate.cs
- Debug.cs
- ReflectionPermission.cs