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
- PrintPageEvent.cs
- DiscardableAttribute.cs
- BulletChrome.cs
- PlainXmlWriter.cs
- Material.cs
- ScriptIgnoreAttribute.cs
- EntityDataSourceEntitySetNameItem.cs
- WebPartEventArgs.cs
- CompilerCollection.cs
- WebService.cs
- NumberFormatInfo.cs
- StyleCollection.cs
- RecipientIdentity.cs
- InfocardInteractiveChannelInitializer.cs
- Symbol.cs
- IQueryable.cs
- ColumnCollection.cs
- EmptyEnumerable.cs
- GridViewRow.cs
- EntityDataSourceChangedEventArgs.cs
- EditingCoordinator.cs
- XmlTextReaderImpl.cs
- NavigateEvent.cs
- TranslateTransform.cs
- CharKeyFrameCollection.cs
- WindowsScrollBar.cs
- XmlChildEnumerator.cs
- DropDownList.cs
- AddInActivator.cs
- ScrollChrome.cs
- VirtualizingPanel.cs
- ScrollPatternIdentifiers.cs
- CacheAxisQuery.cs
- PieceNameHelper.cs
- CodeDelegateInvokeExpression.cs
- TextElementCollectionHelper.cs
- QueryCoreOp.cs
- QilReplaceVisitor.cs
- SqlLiftIndependentRowExpressions.cs
- BamlStream.cs
- BufferModesCollection.cs
- Authorization.cs
- ColumnResizeAdorner.cs
- ConnectorSelectionGlyph.cs
- MethodBuilderInstantiation.cs
- StringCollection.cs
- ThicknessConverter.cs
- Page.cs
- TransformedBitmap.cs
- CodeChecksumPragma.cs
- TraceSource.cs
- WebPartVerb.cs
- FrugalMap.cs
- PolyQuadraticBezierSegment.cs
- Internal.cs
- TypeConverterValueSerializer.cs
- BoolExpr.cs
- XamlVector3DCollectionSerializer.cs
- BaseCodePageEncoding.cs
- ListInitExpression.cs
- UndoManager.cs
- ConstructorNeedsTagAttribute.cs
- FrameworkReadOnlyPropertyMetadata.cs
- ChineseLunisolarCalendar.cs
- Literal.cs
- DeploymentExceptionMapper.cs
- WSSecureConversation.cs
- RangeBaseAutomationPeer.cs
- ConstraintCollection.cs
- HasRunnableWorkflowEvent.cs
- LongPath.cs
- OdbcCommandBuilder.cs
- DataGridViewAutoSizeModeEventArgs.cs
- CqlLexer.cs
- DesignerAttribute.cs
- CompressStream.cs
- SecureStringHasher.cs
- PositiveTimeSpanValidatorAttribute.cs
- FastEncoder.cs
- IntSumAggregationOperator.cs
- DrawingCollection.cs
- LoginStatusDesigner.cs
- ConcurrentBag.cs
- DescendentsWalkerBase.cs
- BlockingCollection.cs
- HttpApplicationFactory.cs
- FileDialog_Vista.cs
- CellPartitioner.cs
- DataContractAttribute.cs
- WmpBitmapEncoder.cs
- WorkflowMessageEventHandler.cs
- SourceFileBuildProvider.cs
- SiteOfOriginContainer.cs
- AQNBuilder.cs
- SiteMapNode.cs
- RootBrowserWindowProxy.cs
- BamlTreeNode.cs
- ContentPlaceHolder.cs
- LinkAreaEditor.cs
- Classification.cs