Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataSet / System / Data / TypedTableBaseExtensions.cs / 1 / TypedTableBaseExtensions.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Linq; using System.Linq.Expressions; using System.Globalization; using System.Diagnostics; namespace System.Data { ////// This static class defines the extension methods that add LINQ operator functionality /// within IEnumerableDT and IOrderedEnumerableDT. /// public static class TypedTableBaseExtensions { ////// LINQ's Where operator for generic EnumerableRowCollection. /// public static EnumerableRowCollectionWhere ( this TypedTableBase source, Func predicate) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.Where (predicate); } /// /// LINQ's OrderBy operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderBy ( this TypedTableBase source, Func keySelector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderBy (keySelector); } /// /// LINQ's OrderBy operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderBy ( this TypedTableBase source, Func keySelector, IComparer comparer) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderBy (keySelector, comparer); } /// /// LINQ's OrderByDescending operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderByDescending ( this TypedTableBase source, Func keySelector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderByDescending (keySelector); } /// /// LINQ's OrderByDescending operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderByDescending ( this TypedTableBase source, Func keySelector, IComparer comparer) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderByDescending (keySelector, comparer); } /// /// Executes a Select (Projection) on EnumerableDataTable. If the selector returns a different /// type than the type of rows, then AsLinqDataView is disabled, and the returning EnumerableDataTable /// represents an enumerable over the LINQ Query. /// public static EnumerableRowCollectionSelect( this TypedTableBase source, Func selector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.Select (selector); } /// /// This method returns a IEnumerable of TRow. /// /// /// The source DataTable to make enumerable. /// ////// IEnumerable of datarows. /// public static EnumerableRowCollectionAsEnumerable (this TypedTableBase source) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); return new EnumerableRowCollection (source as DataTable); } } //end class } // 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; using System.Linq.Expressions; using System.Globalization; using System.Diagnostics; namespace System.Data { ////// This static class defines the extension methods that add LINQ operator functionality /// within IEnumerableDT and IOrderedEnumerableDT. /// public static class TypedTableBaseExtensions { ////// LINQ's Where operator for generic EnumerableRowCollection. /// public static EnumerableRowCollectionWhere ( this TypedTableBase source, Func predicate) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.Where (predicate); } /// /// LINQ's OrderBy operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderBy ( this TypedTableBase source, Func keySelector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderBy (keySelector); } /// /// LINQ's OrderBy operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderBy ( this TypedTableBase source, Func keySelector, IComparer comparer) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderBy (keySelector, comparer); } /// /// LINQ's OrderByDescending operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderByDescending ( this TypedTableBase source, Func keySelector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderByDescending (keySelector); } /// /// LINQ's OrderByDescending operator for generic EnumerableRowCollection. /// public static OrderedEnumerableRowCollectionOrderByDescending ( this TypedTableBase source, Func keySelector, IComparer comparer) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.OrderByDescending (keySelector, comparer); } /// /// Executes a Select (Projection) on EnumerableDataTable. If the selector returns a different /// type than the type of rows, then AsLinqDataView is disabled, and the returning EnumerableDataTable /// represents an enumerable over the LINQ Query. /// public static EnumerableRowCollectionSelect( this TypedTableBase source, Func selector) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); EnumerableRowCollection erc = new EnumerableRowCollection ((DataTable)source); return erc.Select (selector); } /// /// This method returns a IEnumerable of TRow. /// /// /// The source DataTable to make enumerable. /// ////// IEnumerable of datarows. /// public static EnumerableRowCollectionAsEnumerable (this TypedTableBase source) where TRow : DataRow { DataSetUtil.CheckArgumentNull(source, "source"); return new EnumerableRowCollection (source as DataTable); } } //end class } // 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
- FrameworkTextComposition.cs
- DropDownHolder.cs
- AtomParser.cs
- StrokeRenderer.cs
- DataStreams.cs
- DeferredSelectedIndexReference.cs
- GeneralTransform2DTo3D.cs
- CodeTypeOfExpression.cs
- TextPenaltyModule.cs
- TreeNodeStyle.cs
- SchemaManager.cs
- Activator.cs
- DrawingDrawingContext.cs
- PaintValueEventArgs.cs
- WmfPlaceableFileHeader.cs
- UserPersonalizationStateInfo.cs
- HtmlShim.cs
- TimeoutHelper.cs
- RefExpr.cs
- ScriptReferenceBase.cs
- LocationEnvironment.cs
- RectAnimationClockResource.cs
- SecurityContextTokenValidationException.cs
- CompleteWizardStep.cs
- OdbcUtils.cs
- TreeNodeConverter.cs
- PagedControl.cs
- ButtonFlatAdapter.cs
- RectAnimation.cs
- QueryStringParameter.cs
- AssemblyResourceLoader.cs
- CLSCompliantAttribute.cs
- ILGenerator.cs
- WorkflowDefinitionContext.cs
- UIPropertyMetadata.cs
- Propagator.ExtentPlaceholderCreator.cs
- BindingMemberInfo.cs
- ParameterEditorUserControl.cs
- HtmlEncodedRawTextWriter.cs
- TextDecorationCollection.cs
- StorageScalarPropertyMapping.cs
- ShaperBuffers.cs
- ColorContextHelper.cs
- DataStreamFromComStream.cs
- ValidationPropertyAttribute.cs
- HandlerMappingMemo.cs
- GrabHandleGlyph.cs
- BamlResourceContent.cs
- TimeSpanValidator.cs
- CompositeDataBoundControl.cs
- DependencyPropertyDescriptor.cs
- SingleKeyFrameCollection.cs
- BatchParser.cs
- activationcontext.cs
- VectorAnimationUsingKeyFrames.cs
- BitmapImage.cs
- ObfuscationAttribute.cs
- ZipArchive.cs
- PrincipalPermission.cs
- HWStack.cs
- BoundingRectTracker.cs
- EncodingNLS.cs
- VisualBrush.cs
- EdmEntityTypeAttribute.cs
- XmlCharCheckingReader.cs
- SimpleTypeResolver.cs
- BitmapEffectInputConnector.cs
- ContainerControl.cs
- BreadCrumbTextConverter.cs
- FileDialogPermission.cs
- ObjectDataSourceFilteringEventArgs.cs
- HttpCookiesSection.cs
- Barrier.cs
- DataKeyArray.cs
- Rule.cs
- CapabilitiesAssignment.cs
- MethodBody.cs
- LogicalExpressionTypeConverter.cs
- WarningException.cs
- ClientBuildManagerCallback.cs
- ColumnResult.cs
- XamlToRtfWriter.cs
- AsynchronousChannel.cs
- XmlSchemaComplexContentExtension.cs
- XPathBinder.cs
- EnvironmentPermission.cs
- AssemblyCache.cs
- QueryPageSettingsEventArgs.cs
- BooleanFunctions.cs
- FixedStringLookup.cs
- LayoutEditorPart.cs
- XmlSchemaInfo.cs
- CharUnicodeInfo.cs
- CompositeControlDesigner.cs
- LockedHandleGlyph.cs
- EmptyControlCollection.cs
- PersonalizationStateQuery.cs
- StyleModeStack.cs
- PrePostDescendentsWalker.cs
- Conditional.cs