Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Data / System / Data / Filter / ExpressionNode.cs / 1 / 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
- DrawListViewSubItemEventArgs.cs
- DataGridHeaderBorder.cs
- NavigationPropertyEmitter.cs
- ViewGenerator.cs
- ValueType.cs
- SingleAnimationBase.cs
- ComponentResourceManager.cs
- BindingMemberInfo.cs
- ILGenerator.cs
- WeakReferenceKey.cs
- CustomErrorCollection.cs
- FailedToStartupUIException.cs
- FormsAuthenticationUserCollection.cs
- MenuItemCollection.cs
- PopOutPanel.cs
- NamespaceQuery.cs
- ClientTargetSection.cs
- BaseCollection.cs
- SatelliteContractVersionAttribute.cs
- HtmlElement.cs
- DesignerVerbCollection.cs
- Single.cs
- SBCSCodePageEncoding.cs
- DBDataPermission.cs
- QuaternionIndependentAnimationStorage.cs
- SqlCacheDependency.cs
- RadioButtonRenderer.cs
- PropertyAccessVisitor.cs
- TraceContextRecord.cs
- CodeConstructor.cs
- RemotingConfigParser.cs
- UpdateCommandGenerator.cs
- HuffModule.cs
- ChameleonKey.cs
- MethodCallExpression.cs
- SqlDataSourceCache.cs
- XPathNodeIterator.cs
- OleTxTransactionInfo.cs
- ConstantProjectedSlot.cs
- StringConverter.cs
- XXXOnTypeBuilderInstantiation.cs
- AnnotationStore.cs
- SapiRecoInterop.cs
- VolatileEnlistmentMultiplexing.cs
- EventBookmark.cs
- FaultImportOptions.cs
- ResolveCriteria11.cs
- MultitargetUtil.cs
- ListControlConvertEventArgs.cs
- SubpageParagraph.cs
- ListViewDeleteEventArgs.cs
- MethodAccessException.cs
- columnmapfactory.cs
- TextChangedEventArgs.cs
- TabPage.cs
- WinFormsSecurity.cs
- MembershipUser.cs
- MULTI_QI.cs
- MultiView.cs
- ValidateNames.cs
- PartitionResolver.cs
- ContentDisposition.cs
- ResXResourceWriter.cs
- ProcessModelInfo.cs
- SequenceNumber.cs
- WSHttpBindingBase.cs
- PointCollectionValueSerializer.cs
- CssClassPropertyAttribute.cs
- MethodBody.cs
- ObjectQueryProvider.cs
- FileEnumerator.cs
- ControlDesigner.cs
- RoleManagerEventArgs.cs
- AutoGeneratedField.cs
- Events.cs
- BitmapEffectCollection.cs
- AnimatedTypeHelpers.cs
- DeploymentSectionCache.cs
- Identifier.cs
- SqlProfileProvider.cs
- BufferBuilder.cs
- UriTemplateClientFormatter.cs
- SchemaRegistration.cs
- HwndKeyboardInputProvider.cs
- SoapIgnoreAttribute.cs
- BaseUriHelper.cs
- CompiledQueryCacheKey.cs
- XPathArrayIterator.cs
- OracleDataReader.cs
- NavigationCommands.cs
- FormatSelectingMessageInspector.cs
- DbProviderConfigurationHandler.cs
- PropertyIDSet.cs
- NumberSubstitution.cs
- ImagingCache.cs
- SynchronizationLockException.cs
- HTTPNotFoundHandler.cs
- Visitors.cs
- InkSerializer.cs
- MethodInfo.cs