Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / 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
- SafeNativeMemoryHandle.cs
- DataGridViewColumnHeaderCell.cs
- Matrix3D.cs
- DataGridViewSelectedColumnCollection.cs
- TextSpan.cs
- RequestCachingSection.cs
- BuildManager.cs
- EdmFunction.cs
- XhtmlStyleClass.cs
- ChannelSinkStacks.cs
- DictionaryBase.cs
- NonPrimarySelectionGlyph.cs
- CollectionViewGroupInternal.cs
- SectionVisual.cs
- Viewport2DVisual3D.cs
- Stackframe.cs
- ListControl.cs
- DataListDesigner.cs
- Baml2006ReaderContext.cs
- TransportSecurityProtocol.cs
- RuntimeHandles.cs
- HttpClientCertificate.cs
- QueryStringConverter.cs
- SpeechRecognizer.cs
- AdRotator.cs
- RepeatButton.cs
- UpdateTracker.cs
- ControlBindingsConverter.cs
- _LoggingObject.cs
- Transform3DGroup.cs
- AbsoluteQuery.cs
- Attributes.cs
- ResXFileRef.cs
- Math.cs
- DrawingVisualDrawingContext.cs
- InternalResources.cs
- Encoder.cs
- FreeFormPanel.cs
- PageOrientation.cs
- NonParentingControl.cs
- PackageController.cs
- Helper.cs
- CollectionViewGroup.cs
- PathParser.cs
- ManipulationInertiaStartingEventArgs.cs
- X509Certificate2Collection.cs
- FunctionNode.cs
- InvokeHandlers.cs
- RegistryKey.cs
- AdRotator.cs
- MsmqIntegrationAppDomainProtocolHandler.cs
- DependencyProperty.cs
- DependencyStoreSurrogate.cs
- ButtonField.cs
- SqlDataSourceFilteringEventArgs.cs
- NetworkInformationPermission.cs
- HttpProcessUtility.cs
- XmlILConstructAnalyzer.cs
- Point3DKeyFrameCollection.cs
- SiteMap.cs
- AdapterUtil.cs
- DrawingContextWalker.cs
- precedingquery.cs
- XmlCountingReader.cs
- DataGridViewEditingControlShowingEventArgs.cs
- connectionpool.cs
- CngProvider.cs
- Models.cs
- ExpressionPrefixAttribute.cs
- SerializationInfo.cs
- ObjectDisposedException.cs
- Button.cs
- ContentControl.cs
- ViewBase.cs
- ThousandthOfEmRealPoints.cs
- CfgParser.cs
- ComboBox.cs
- ColorConvertedBitmap.cs
- Misc.cs
- FaultCode.cs
- ValidatingPropertiesEventArgs.cs
- WorkflowServiceHostFactory.cs
- NonBatchDirectoryCompiler.cs
- BinaryEditor.cs
- SqlCacheDependencyDatabaseCollection.cs
- SecurityUtils.cs
- SqlClientWrapperSmiStreamChars.cs
- TransformerInfoCollection.cs
- HtmlHistory.cs
- OrderedEnumerableRowCollection.cs
- TextServicesLoader.cs
- connectionpool.cs
- SqlUtils.cs
- JoinTreeNode.cs
- ReferenceService.cs
- DataGridColumn.cs
- DragEventArgs.cs
- MSAAEventDispatcher.cs
- filewebresponse.cs
- RecordConverter.cs