Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DLinq / Dlinq / SqlClient / Query / SqlAggregateChecker.cs / 1 / SqlAggregateChecker.cs
using System; using System.Collections.Generic; using System.Linq.Expressions; using System.Data.Linq; namespace System.Data.Linq.SqlClient { internal class SqlAggregateChecker { Visitor visitor; internal SqlAggregateChecker() { this.visitor = new Visitor(); } internal bool HasAggregates(SqlNode node) { visitor.hasAggregates = false; visitor.Visit(node); return visitor.hasAggregates; } class Visitor : SqlVisitor { internal bool hasAggregates; internal Visitor() { } internal override SqlExpression VisitSubSelect(SqlSubSelect ss) { return ss; } internal override SqlSource VisitSource(SqlSource source) { return source; } internal override SqlExpression VisitUnaryOperator(SqlUnary uo) { switch (uo.NodeType) { case SqlNodeType.Min: case SqlNodeType.Max: case SqlNodeType.Avg: case SqlNodeType.Sum: case SqlNodeType.Count: case SqlNodeType.LongCount: this.hasAggregates = true; return uo; default: return base.VisitUnaryOperator(uo); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Collections.Generic; using System.Linq.Expressions; using System.Data.Linq; namespace System.Data.Linq.SqlClient { internal class SqlAggregateChecker { Visitor visitor; internal SqlAggregateChecker() { this.visitor = new Visitor(); } internal bool HasAggregates(SqlNode node) { visitor.hasAggregates = false; visitor.Visit(node); return visitor.hasAggregates; } class Visitor : SqlVisitor { internal bool hasAggregates; internal Visitor() { } internal override SqlExpression VisitSubSelect(SqlSubSelect ss) { return ss; } internal override SqlSource VisitSource(SqlSource source) { return source; } internal override SqlExpression VisitUnaryOperator(SqlUnary uo) { switch (uo.NodeType) { case SqlNodeType.Min: case SqlNodeType.Max: case SqlNodeType.Avg: case SqlNodeType.Sum: case SqlNodeType.Count: case SqlNodeType.LongCount: this.hasAggregates = true; return uo; default: return base.VisitUnaryOperator(uo); } } } } } // 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
- SerializationTrace.cs
- BamlResourceSerializer.cs
- HTMLTextWriter.cs
- StringFormat.cs
- GeometryHitTestResult.cs
- RoutingExtension.cs
- LinqDataSourceValidationException.cs
- WebCodeGenerator.cs
- AppDomainEvidenceFactory.cs
- Identity.cs
- XmlSchemaAttributeGroup.cs
- BuildResult.cs
- DateTimeValueSerializer.cs
- SoundPlayerAction.cs
- CodePageUtils.cs
- ServiceModelConfigurationSection.cs
- exports.cs
- ClientOptions.cs
- NumericUpDown.cs
- SqlDelegatedTransaction.cs
- PeerApplicationLaunchInfo.cs
- KnowledgeBase.cs
- CompatibleIComparer.cs
- AlignmentXValidation.cs
- KeyInstance.cs
- PerformanceCounterPermissionEntry.cs
- COSERVERINFO.cs
- BinaryQueryOperator.cs
- DesignTimeXamlWriter.cs
- GridViewColumn.cs
- CompiledIdentityConstraint.cs
- SessionIDManager.cs
- AutoResetEvent.cs
- XmlSchemaAttribute.cs
- SqlInternalConnection.cs
- SmiMetaDataProperty.cs
- HttpContextWrapper.cs
- TrackingMemoryStream.cs
- XmlSchemaSimpleTypeList.cs
- xsdvalidator.cs
- MessageContractAttribute.cs
- SqlUserDefinedAggregateAttribute.cs
- CopyOfAction.cs
- LicenseException.cs
- StyleBamlRecordReader.cs
- ToolStripOverflow.cs
- ObjectDataProvider.cs
- XPathNodeIterator.cs
- ToolStripItemRenderEventArgs.cs
- GeneralTransformGroup.cs
- CapabilitiesUse.cs
- GridViewColumnHeaderAutomationPeer.cs
- HttpHandlerActionCollection.cs
- BehaviorEditorPart.cs
- IgnoreFileBuildProvider.cs
- LongValidator.cs
- Point.cs
- SequentialOutput.cs
- Decimal.cs
- BaseInfoTable.cs
- ComponentChangedEvent.cs
- StoreItemCollection.cs
- ParallelEnumerableWrapper.cs
- AsyncCompletedEventArgs.cs
- IPAddress.cs
- ProcessHostServerConfig.cs
- WebPartConnectionCollection.cs
- SignatureResourcePool.cs
- AlternateView.cs
- TrackBarRenderer.cs
- LongValidatorAttribute.cs
- InvalidContentTypeException.cs
- PageAdapter.cs
- DataListItemCollection.cs
- RoleService.cs
- CommonXSendMessage.cs
- BitmapCache.cs
- EntityDataSourceEntitySetNameItem.cs
- ButtonFieldBase.cs
- UnaryQueryOperator.cs
- HostingEnvironmentWrapper.cs
- EncryptedPackage.cs
- ConfigurationSection.cs
- wgx_commands.cs
- TextFragmentEngine.cs
- StructuralComparisons.cs
- NumberSubstitution.cs
- FormatVersion.cs
- PEFileEvidenceFactory.cs
- GetTokenRequest.cs
- ColumnMapTranslator.cs
- CommunicationException.cs
- DrawingImage.cs
- Misc.cs
- PageAsyncTaskManager.cs
- ApplicationFileCodeDomTreeGenerator.cs
- CqlGenerator.cs
- XmlSiteMapProvider.cs
- MimeWriter.cs
- SerializationException.cs