Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / Filter / ExpressionNode.cs / 1305376 / ExpressionNode.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data { using System; using System.Collections.Generic; using System.Data.Common; using System.Data.SqlTypes; internal abstract class ExpressionNode { private DataTable _table; protected ExpressionNode(DataTable table) { _table = table; } internal IFormatProvider FormatProvider { get { return ((null != _table) ? _table.FormatProvider : System.Globalization.CultureInfo.CurrentCulture); } } internal virtual bool IsSqlColumn{ get{ return false; } } protected DataTable table { get { return _table; } } protected void BindTable(DataTable table) { // when the expression is created, DataColumn may not be associated with a table yet _table = table; } internal abstract void Bind(DataTable table, Listlist); internal abstract object Eval(); internal abstract object Eval(DataRow row, DataRowVersion version); internal abstract object Eval(int[] recordNos); internal abstract bool IsConstant(); internal abstract bool IsTableConstant(); internal abstract bool HasLocalAggregate(); internal abstract bool HasRemoteAggregate(); internal abstract ExpressionNode Optimize(); internal virtual bool DependsOn(DataColumn column) { return false; } internal static bool IsInteger(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SByte || type == StorageType.Byte); } internal static bool IsIntegerSql(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SByte || type == StorageType.Byte || type == StorageType.SqlInt64 || type == StorageType.SqlInt32 || type == StorageType.SqlInt16 || type == StorageType.SqlByte); } internal static bool IsSigned(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.SByte || IsFloat(type)); } internal static bool IsSignedSql(StorageType type) { return(type == StorageType.Int16 || // IsSigned(type) type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.SByte || type == StorageType.SqlInt64 || type == StorageType.SqlInt32 || type == StorageType.SqlInt16 || IsFloatSql(type)); } internal static bool IsUnsigned(StorageType type) { return(type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.Byte); } internal static bool IsUnsignedSql(StorageType type) { return(type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SqlByte ||// SqlByte represents an 8-bit unsigned integer, in the range of 0 through 255, type == StorageType.Byte); } internal static bool IsNumeric(StorageType type) { return(IsFloat(type) || IsInteger(type)); } internal static bool IsNumericSql(StorageType type) { return(IsFloatSql(type) || IsIntegerSql(type)); } internal static bool IsFloat(StorageType type) { return(type == StorageType.Single || type == StorageType.Double || type == StorageType.Decimal); } internal static bool IsFloatSql(StorageType type) { return(type == StorageType.Single || type == StorageType.Double || type == StorageType.Decimal || type == StorageType.SqlDouble || type == StorageType.SqlDecimal || // I expect decimal to be Integer! type == StorageType.SqlMoney || // if decimal is here, this should be definitely here! type == StorageType.SqlSingle); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data { using System; using System.Collections.Generic; using System.Data.Common; using System.Data.SqlTypes; internal abstract class ExpressionNode { private DataTable _table; protected ExpressionNode(DataTable table) { _table = table; } internal IFormatProvider FormatProvider { get { return ((null != _table) ? _table.FormatProvider : System.Globalization.CultureInfo.CurrentCulture); } } internal virtual bool IsSqlColumn{ get{ return false; } } protected DataTable table { get { return _table; } } protected void BindTable(DataTable table) { // when the expression is created, DataColumn may not be associated with a table yet _table = table; } internal abstract void Bind(DataTable table, Listlist); internal abstract object Eval(); internal abstract object Eval(DataRow row, DataRowVersion version); internal abstract object Eval(int[] recordNos); internal abstract bool IsConstant(); internal abstract bool IsTableConstant(); internal abstract bool HasLocalAggregate(); internal abstract bool HasRemoteAggregate(); internal abstract ExpressionNode Optimize(); internal virtual bool DependsOn(DataColumn column) { return false; } internal static bool IsInteger(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SByte || type == StorageType.Byte); } internal static bool IsIntegerSql(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SByte || type == StorageType.Byte || type == StorageType.SqlInt64 || type == StorageType.SqlInt32 || type == StorageType.SqlInt16 || type == StorageType.SqlByte); } internal static bool IsSigned(StorageType type) { return(type == StorageType.Int16 || type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.SByte || IsFloat(type)); } internal static bool IsSignedSql(StorageType type) { return(type == StorageType.Int16 || // IsSigned(type) type == StorageType.Int32 || type == StorageType.Int64 || type == StorageType.SByte || type == StorageType.SqlInt64 || type == StorageType.SqlInt32 || type == StorageType.SqlInt16 || IsFloatSql(type)); } internal static bool IsUnsigned(StorageType type) { return(type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.Byte); } internal static bool IsUnsignedSql(StorageType type) { return(type == StorageType.UInt16 || type == StorageType.UInt32 || type == StorageType.UInt64 || type == StorageType.SqlByte ||// SqlByte represents an 8-bit unsigned integer, in the range of 0 through 255, type == StorageType.Byte); } internal static bool IsNumeric(StorageType type) { return(IsFloat(type) || IsInteger(type)); } internal static bool IsNumericSql(StorageType type) { return(IsFloatSql(type) || IsIntegerSql(type)); } internal static bool IsFloat(StorageType type) { return(type == StorageType.Single || type == StorageType.Double || type == StorageType.Decimal); } internal static bool IsFloatSql(StorageType type) { return(type == StorageType.Single || type == StorageType.Double || type == StorageType.Decimal || type == StorageType.SqlDouble || type == StorageType.SqlDecimal || // I expect decimal to be Integer! type == StorageType.SqlMoney || // if decimal is here, this should be definitely here! type == StorageType.SqlSingle); } } } // 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
- Page.cs
- MsiStyleLogWriter.cs
- RealProxy.cs
- DetailsViewPagerRow.cs
- UrlPropertyAttribute.cs
- StreamResourceInfo.cs
- BulletedListEventArgs.cs
- PermissionListSet.cs
- Pair.cs
- SimpleHandlerBuildProvider.cs
- UInt16Converter.cs
- PasswordBoxAutomationPeer.cs
- ManifestSignedXml.cs
- _NestedMultipleAsyncResult.cs
- SqlStream.cs
- PermissionSet.cs
- FontInfo.cs
- CompensationDesigner.cs
- PropertySet.cs
- SerializationInfoEnumerator.cs
- IsolationInterop.cs
- ObjectFactoryCodeDomTreeGenerator.cs
- ExtenderProviderService.cs
- PointConverter.cs
- WebControlToolBoxItem.cs
- DbCommandDefinition.cs
- GridViewSelectEventArgs.cs
- ExpressionBuilderCollection.cs
- ExpressionPrinter.cs
- HttpCachePolicyElement.cs
- ToolStripArrowRenderEventArgs.cs
- CallSite.cs
- URLAttribute.cs
- XmlText.cs
- IndexerNameAttribute.cs
- Action.cs
- ErrorsHelper.cs
- SupportsEventValidationAttribute.cs
- CodeAssignStatement.cs
- QueryConverter.cs
- ObjectIDGenerator.cs
- DependencyProperty.cs
- WebServiceData.cs
- SqlDataSourceQueryEditor.cs
- SystemTcpStatistics.cs
- ExpressionParser.cs
- BoolExpressionVisitors.cs
- ExpandoClass.cs
- VarRefManager.cs
- X509CertificateClaimSet.cs
- BehaviorEditorPart.cs
- ReservationNotFoundException.cs
- BidPrivateBase.cs
- ThousandthOfEmRealDoubles.cs
- XmlSchemaImporter.cs
- ScrollBarRenderer.cs
- CodeMethodReturnStatement.cs
- CharKeyFrameCollection.cs
- Fault.cs
- ObjectRef.cs
- CustomGrammar.cs
- SevenBitStream.cs
- WindowsFormsHost.cs
- Decoder.cs
- CommandConverter.cs
- ZoneLinkButton.cs
- RtfToXamlReader.cs
- LinkedList.cs
- XmlSortKey.cs
- VScrollBar.cs
- HttpRawResponse.cs
- UriTemplateLiteralPathSegment.cs
- EpmTargetTree.cs
- AnnotationStore.cs
- AnnotationResourceCollection.cs
- CompModSwitches.cs
- SamlAssertionKeyIdentifierClause.cs
- HorizontalAlignConverter.cs
- InvalidWMPVersionException.cs
- ResourceReferenceExpressionConverter.cs
- Literal.cs
- IfAction.cs
- EnumMemberAttribute.cs
- Utils.cs
- DocumentGridContextMenu.cs
- CounterCreationDataCollection.cs
- SurrogateDataContract.cs
- SelectionProviderWrapper.cs
- DBConnectionString.cs
- AutomationIdentifier.cs
- XmlValueConverter.cs
- GeneralTransform.cs
- ResourceAssociationSetEnd.cs
- DataViewListener.cs
- WCFModelStrings.Designer.cs
- PointUtil.cs
- DataControlCommands.cs
- MobileResource.cs
- sqlnorm.cs
- _DisconnectOverlappedAsyncResult.cs