Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Shared / MS / Internal / PartialList.cs / 1 / PartialList.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // Description: PartialList is used when the developer needs to pass an IList range to // a function that takes generic IList interface. // // // History: // 06/25/2004 : [....] - Created // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; namespace MS.Internal { ////// PartialList is used when someone needs to pass an IList range to /// a function that takes generic IList interface. It implemented a read-only subset of IList. /// internal class PartialList: IList { private IList _list; private int _initialIndex; private int _count; /// /// Convenience constructor for taking in an entire list. Useful for creating a read-only /// version of the list. /// public PartialList(IListlist) { _list = list; _initialIndex = 0; _count = list.Count; } public PartialList(IList list, int initialIndex, int count) { // make sure early that the caller didn't miscalculate index and count Debug.Assert(initialIndex >= 0 && initialIndex + count <= list.Count); _list = list; _initialIndex = initialIndex; _count = count; } #if !PRESENTATION_CORE /// /// Creates new PartialList object only for true partial ranges. /// Otherwise, returns the original list. /// public static IListCreate(IList list, int initialIndex, int count) { if (list == null) return null; if (initialIndex == 0 && count == list.Count) return list; return new PartialList (list, initialIndex, count); } #endif #region IList Members public void RemoveAt(int index) { // PartialList is read only. throw new NotSupportedException(); } public void Insert(int index, T item) { // PartialList is read only. throw new NotSupportedException(); } public T this[int index] { get { return _list[index + _initialIndex]; } set { // PartialList is read only. throw new NotSupportedException(); } } public int IndexOf(T item) { int index = _list.IndexOf(item); if (index == -1 || index < _initialIndex || index - _initialIndex >= _count) return -1; return index - _initialIndex; } #endregion #region ICollection Members public bool IsReadOnly { get { return true; } } public void Clear() { // PartialList is read only. throw new NotSupportedException(); } public void Add(T item) { // PartialList is read only. throw new NotSupportedException(); } public bool Contains(T item) { return IndexOf(item) != -1; } public bool Remove(T item) { // PartialList is read only. throw new NotSupportedException(); } public int Count { get { return _count; } } public void CopyTo(T[] array, int arrayIndex) { if (arrayIndex < 0) throw new ArgumentOutOfRangeException("arrayIndex"); for (int i = 0; i < _count; ++i) array[arrayIndex + i] = this[i]; } #endregion #region IEnumerable Members IEnumerator IEnumerable .GetEnumerator() { for (int i = _initialIndex; i < _initialIndex + _count; ++i) yield return _list[i]; } #endregion #region IEnumerable Members IEnumerator IEnumerable.GetEnumerator() { return ((IEnumerable )this).GetEnumerator(); } #endregion } } // 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
- Activity.cs
- _BufferOffsetSize.cs
- StylusTip.cs
- SqlBooleanizer.cs
- StatusBar.cs
- WebPartChrome.cs
- MaterializeFromAtom.cs
- BindingNavigator.cs
- ExpandCollapsePattern.cs
- AttachedPropertyMethodSelector.cs
- QilGeneratorEnv.cs
- ReadOnlyNameValueCollection.cs
- ToolStripLocationCancelEventArgs.cs
- DesignerResources.cs
- ProcessHostFactoryHelper.cs
- InteropEnvironment.cs
- Win32KeyboardDevice.cs
- TreeBuilderXamlTranslator.cs
- XmlCountingReader.cs
- WebPartMovingEventArgs.cs
- AssociationTypeEmitter.cs
- AttributeProviderAttribute.cs
- ExpressionNormalizer.cs
- ScriptingSectionGroup.cs
- OperationFormatStyle.cs
- LinkArea.cs
- RelationshipConstraintValidator.cs
- WebPartConnectionCollection.cs
- CommandDevice.cs
- FactoryRecord.cs
- TypeConverterHelper.cs
- AnnotationResourceCollection.cs
- WebServiceData.cs
- WindowInteractionStateTracker.cs
- MeasureItemEvent.cs
- LinqDataView.cs
- RenderingEventArgs.cs
- GenericEnumConverter.cs
- ServiceNotStartedException.cs
- Descriptor.cs
- PageCodeDomTreeGenerator.cs
- DeferredTextReference.cs
- InstanceKey.cs
- DbDataReader.cs
- ProviderUtil.cs
- EastAsianLunisolarCalendar.cs
- MatrixTransform.cs
- RtfFormatStack.cs
- Int64AnimationBase.cs
- TransactionScopeDesigner.cs
- Stack.cs
- ObjectParameterCollection.cs
- LiteralSubsegment.cs
- PropertyCollection.cs
- _CommandStream.cs
- ObjectItemLoadingSessionData.cs
- QuaternionAnimation.cs
- MdImport.cs
- TrustLevel.cs
- DynamicResourceExtension.cs
- VectorCollectionValueSerializer.cs
- PeerChannelFactory.cs
- OciEnlistContext.cs
- EntityViewContainer.cs
- SkinBuilder.cs
- DBConcurrencyException.cs
- BitmapEffectDrawing.cs
- ListBoxItemWrapperAutomationPeer.cs
- JoinTreeSlot.cs
- RegistryPermission.cs
- SqlAliaser.cs
- NestedContainer.cs
- EventlogProvider.cs
- TextSelection.cs
- MsmqTransportBindingElement.cs
- returneventsaver.cs
- XmlWriter.cs
- PropertyPath.cs
- ClientSession.cs
- SubMenuStyle.cs
- TransactionScope.cs
- LiteralDesigner.cs
- PartialCachingAttribute.cs
- FieldBuilder.cs
- ContourSegment.cs
- SqlBooleanMismatchVisitor.cs
- MsdtcClusterUtils.cs
- ToolStripItemClickedEventArgs.cs
- Empty.cs
- DbInsertCommandTree.cs
- BuildDependencySet.cs
- MethodImplAttribute.cs
- IdentifierService.cs
- IUnknownConstantAttribute.cs
- ServiceBuildProvider.cs
- EnumValAlphaComparer.cs
- SQLBoolean.cs
- WebPartPersonalization.cs
- DbDataSourceEnumerator.cs
- ServiceDurableInstanceContextProvider.cs