Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / TypeGenericEnumerableViewSchema.cs / 2 / TypeGenericEnumerableViewSchema.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design { using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.Reflection; ////// Represents a View's schema based on a generic IEnumerable. The /// strongly-typed row type is determined based on the generic argument /// of the enumerable. /// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] internal sealed class TypeGenericEnumerableViewSchema : BaseTypeViewSchema { public TypeGenericEnumerableViewSchema(string viewName, Type type) : base(viewName, type) { Debug.Assert(TypeSchema.IsBoundGenericEnumerable(type), String.Format(CultureInfo.InvariantCulture, "The type '{0}' does not implement System.Collections.Generic.IEnumerable, or the argument T is not bound to a type.", type.FullName)); } protected override Type GetRowType(Type objectType) { // Get the IEnumerable declaration Type enumerableType = null; if (objectType.IsInterface && objectType.IsGenericType && objectType.GetGenericTypeDefinition() == typeof(IEnumerable<>)) { // If the type already is IEnumerable , that's the interface we want to inspect enumerableType = objectType; } else { // Otherwise we get a list of all the interafaces the type implements Type[] interfaces = objectType.GetInterfaces(); foreach (Type i in interfaces) { if (i.IsGenericType && i.GetGenericTypeDefinition() == typeof(IEnumerable<>)) { enumerableType = i; break; } } } Debug.Assert(enumerableType != null, "Should have found an implementation of IEnumerable "); // Now return the value of the T argument Type[] genericArguments = enumerableType.GetGenericArguments(); Debug.Assert(genericArguments != null && genericArguments.Length == 1, "Expected IEnumerable to have a generic argument"); // If a type has IsGenericParameter=true that means it is not bound. if (genericArguments[0].IsGenericParameter) { Debug.Fail("Expected the type argument to IEnumerable to be bound"); return null; } else { return genericArguments[0]; } } } } // 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
- ConstructorNeedsTagAttribute.cs
- GradientStopCollection.cs
- ErasingStroke.cs
- PrivilegeNotHeldException.cs
- TemplateColumn.cs
- CatchBlock.cs
- _ConnectionGroup.cs
- CompoundFileDeflateTransform.cs
- EventSinkActivityDesigner.cs
- FontSource.cs
- WCFServiceClientProxyGenerator.cs
- Interlocked.cs
- BasePattern.cs
- UrlMappingsSection.cs
- TextBox.cs
- EntityConnectionStringBuilder.cs
- WindowsListViewGroupHelper.cs
- SqlCacheDependencyDatabaseCollection.cs
- IsolatedStorageFileStream.cs
- AbsoluteQuery.cs
- CheckBox.cs
- ImageMapEventArgs.cs
- GorillaCodec.cs
- LogEntrySerialization.cs
- ValueQuery.cs
- XmlDocument.cs
- DataSourceControlBuilder.cs
- ExeContext.cs
- ResourceExpressionEditorSheet.cs
- HttpRuntime.cs
- TextElementEditingBehaviorAttribute.cs
- TranslateTransform.cs
- StringHandle.cs
- panel.cs
- EdmMember.cs
- SqlDuplicator.cs
- CultureSpecificStringDictionary.cs
- WindowsStatic.cs
- DesignerSerializationManager.cs
- RenamedEventArgs.cs
- TypeSystem.cs
- ThemeDirectoryCompiler.cs
- InitializerFacet.cs
- AttributeUsageAttribute.cs
- AutomationPropertyInfo.cs
- SortDescriptionCollection.cs
- AlgoModule.cs
- EntityParameterCollection.cs
- AsymmetricKeyExchangeDeformatter.cs
- TypeConverterMarkupExtension.cs
- Converter.cs
- DescendantBaseQuery.cs
- DataServiceQueryProvider.cs
- BitmapDownload.cs
- EnumerableCollectionView.cs
- SmtpDigestAuthenticationModule.cs
- MetadataItemSerializer.cs
- RtfControlWordInfo.cs
- LastQueryOperator.cs
- cache.cs
- GenericsInstances.cs
- ShimAsPublicXamlType.cs
- FragmentNavigationEventArgs.cs
- SystemUnicastIPAddressInformation.cs
- ContentHostHelper.cs
- WizardForm.cs
- TTSVoice.cs
- DataGridViewUtilities.cs
- SelectedDatesCollection.cs
- AppSecurityManager.cs
- QueryContinueDragEvent.cs
- SqlVersion.cs
- SqlTypesSchemaImporter.cs
- Rectangle.cs
- FileUtil.cs
- SerializableAttribute.cs
- XsdBuildProvider.cs
- XmlnsDefinitionAttribute.cs
- Pen.cs
- StrongNameMembershipCondition.cs
- GC.cs
- HttpRuntimeSection.cs
- XmlSchemaDocumentation.cs
- DeviceContext2.cs
- SqlDataSource.cs
- QilInvokeLateBound.cs
- PermissionToken.cs
- AssociatedControlConverter.cs
- PowerModeChangedEventArgs.cs
- NameScope.cs
- MulticastDelegate.cs
- DataSourceDesigner.cs
- Polyline.cs
- NameValueSectionHandler.cs
- InputLanguageManager.cs
- GACIdentityPermission.cs
- OleCmdHelper.cs
- _ChunkParse.cs
- ProbeRequestResponseAsyncResult.cs
- PageWrapper.cs