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
- XmlAttributes.cs
- TreeSet.cs
- wgx_sdk_version.cs
- ExceptionHelpers.cs
- SmiRequestExecutor.cs
- SelectionGlyphBase.cs
- RecordsAffectedEventArgs.cs
- InvalidComObjectException.cs
- PerfCounters.cs
- ShortcutKeysEditor.cs
- ChannelFactoryBase.cs
- SchemaImporterExtensionElement.cs
- AdapterUtil.cs
- CallbackCorrelationInitializer.cs
- FontWeightConverter.cs
- HttpException.cs
- XmlWriterDelegator.cs
- AnnotationAuthorChangedEventArgs.cs
- DataFormats.cs
- PingOptions.cs
- IntegerValidatorAttribute.cs
- Vector3DCollectionValueSerializer.cs
- DataSource.cs
- MsmqTransportSecurity.cs
- ThreadNeutralSemaphore.cs
- CallbackHandler.cs
- SelectionEditingBehavior.cs
- OdbcHandle.cs
- HierarchicalDataSourceConverter.cs
- Literal.cs
- AxHost.cs
- newitemfactory.cs
- FormsAuthenticationCredentials.cs
- DataGridViewAutoSizeModeEventArgs.cs
- StreamReader.cs
- KeyToListMap.cs
- ReferenceConverter.cs
- XPathAxisIterator.cs
- Interfaces.cs
- Native.cs
- Rijndael.cs
- SpellCheck.cs
- glyphs.cs
- ViewStateException.cs
- InfoCardRSAOAEPKeyExchangeFormatter.cs
- AppearanceEditorPart.cs
- DataSourceXmlSubItemAttribute.cs
- LicenseException.cs
- AlgoModule.cs
- ResourceProperty.cs
- ServiceHttpModule.cs
- WebPartZoneAutoFormat.cs
- DataServiceContext.cs
- DataPagerCommandEventArgs.cs
- UnionCodeGroup.cs
- FrameworkContextData.cs
- ExecutionContext.cs
- TextServicesCompartmentContext.cs
- DateTimeOffset.cs
- MonitorWrapper.cs
- WindowsFont.cs
- columnmapfactory.cs
- DesignerAutoFormatCollection.cs
- ChannelServices.cs
- LOSFormatter.cs
- ProcessModuleCollection.cs
- SessionStateSection.cs
- ForceCopyBuildProvider.cs
- DtrList.cs
- CacheChildrenQuery.cs
- DesignObjectWrapper.cs
- SiteIdentityPermission.cs
- XPathNavigatorKeyComparer.cs
- SqlParameterCollection.cs
- _AuthenticationState.cs
- MenuCommand.cs
- IsolatedStorageFile.cs
- DecoderBestFitFallback.cs
- SelectionRange.cs
- EncodingNLS.cs
- WebConfigurationHost.cs
- MediaSystem.cs
- LayoutEngine.cs
- QueryableDataSourceEditData.cs
- HttpRequest.cs
- SharedMemory.cs
- SourceSwitch.cs
- PageVisual.cs
- MemberRestriction.cs
- WpfWebRequestHelper.cs
- UrlMappingCollection.cs
- TimersDescriptionAttribute.cs
- ThicknessAnimation.cs
- TypeElementCollection.cs
- SqlConnectionString.cs
- ProxyWebPart.cs
- UpdatePanelTriggerCollection.cs
- DataGridViewRow.cs
- PartManifestEntry.cs
- StringDictionaryEditor.cs