Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / IO / Packaging / PackageRelationshipCollection.cs / 1305600 / PackageRelationshipCollection.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // This is a class for representing a PackageRelationshipCollection. This is a part of the // MMCF Packaging Layer. // // Details: // This class handles serialization to/from relationship parts, creation of those parts // and offers methods to create, delete and enumerate relationships. // // History: // 01/03/2004: SarjanaS: Initial creation. // 03/17/2004: BruceMac: Initial implementation // 04/26/2004: Sarjanas: Refactored some of the code to InternalRelationshipCollection.cs // and added support for filtered relationships // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Windows; // For Exception strings - SRID using System.Collections.Generic; using System.Diagnostics; // For Debug.Assert using MS.Internal.IO.Packaging; namespace System.IO.Packaging { ////// Collection of all the relationships corresponding to a given source PackagePart /// public class PackageRelationshipCollection : IEnumerable{ //----------------------------------------------------- // // Public Methods // //----------------------------------------------------- #region IEnumerable /// /// Returns an enumerator for all the relationships for a PackagePart /// ///IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } /// /// Returns an enumerator over all the relationships for a PackagePart /// ///public IEnumerator GetEnumerator() { List .Enumerator relationshipsEnumerator = _relationships.GetEnumerator(); if (_filter == null) return relationshipsEnumerator; else return new FilteredEnumerator(relationshipsEnumerator, _filter); } #endregion //------------------------------------------------------ // // Internal Members // //----------------------------------------------------- #region Internal Members /// /// Constructor /// ///For use by PackagePart internal PackageRelationshipCollection(InternalRelationshipCollection relationships, string filter) { Debug.Assert(relationships != null, "relationships parameter cannot be null"); _relationships = relationships; _filter = filter; } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ // None //----------------------------------------------------- // // Private Members // //------------------------------------------------------ #region Private Members private InternalRelationshipCollection _relationships; private string _filter; #endregion #region Private Class #region FilteredEnumerator Class ////// Internal class for the FilteredEnumerator /// private sealed class FilteredEnumerator : IEnumerator{ #region Constructor /// /// Constructs a FilteredEnumerator /// /// /// internal FilteredEnumerator(IEnumeratorenumerator, string filter) { Debug.Assert((enumerator != null), "Enumerator cannot be null"); Debug.Assert(filter != null, "PackageRelationship filter string cannot be null"); // Look for empty string or string with just spaces Debug.Assert(filter.Trim() != String.Empty, "RelationshipType filter cannot be empty string or a string with just spaces"); _enumerator = enumerator; _filter = filter; } #endregion Constructor #region IEnumerator Methods /// /// This method keeps moving the enumerator the the next position till /// a relationship is found with the matching Name /// ///Bool indicating if the enumerator successfully moved to the next position bool IEnumerator.MoveNext() { while (_enumerator.MoveNext()) { if (RelationshipTypeMatches()) return true; } return false; } ////// Gets the current object in the enumerator /// ///Object IEnumerator.Current { get { return _enumerator.Current; } } /// /// Resets the enumerator to the begining /// void IEnumerator.Reset() { _enumerator.Reset(); } #endregion IEnumerator Methods #region IEnumeratorMembers /// /// Gets the current object in the enumerator /// ///public PackageRelationship Current { get { return _enumerator.Current; } } #endregion IEnumerator Members #region IDisposable Members public void Dispose() { //Most enumerators have dispose as a no-op, we follow the same pattern. _enumerator.Dispose(); } #endregion IDisposable Members #region Private Methods private bool RelationshipTypeMatches() { PackageRelationship r = _enumerator.Current; //Case-sensitive comparison if (String.CompareOrdinal(r.RelationshipType, _filter)==0) return true; else return false; } #endregion Private Methods #region Private Members private IEnumerator _enumerator; private string _filter; #endregion Private Members } #endregion FilteredEnumerator Class #endregion Private Class } } // 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
- FileDialog.cs
- LightweightCodeGenerator.cs
- SimplePropertyEntry.cs
- DbParameterHelper.cs
- TextCompositionManager.cs
- RSAPKCS1KeyExchangeDeformatter.cs
- EntityProviderFactory.cs
- XmlSchemaComplexContentExtension.cs
- SendKeys.cs
- nulltextcontainer.cs
- WsatConfiguration.cs
- StringAttributeCollection.cs
- PathData.cs
- EditingMode.cs
- DATA_BLOB.cs
- XsdDataContractExporter.cs
- CfgRule.cs
- brushes.cs
- SqlStream.cs
- CompiledQuery.cs
- StackSpiller.Temps.cs
- DataRelation.cs
- NetworkStream.cs
- HtmlHead.cs
- BrowsableAttribute.cs
- IntegerCollectionEditor.cs
- MessageLoggingElement.cs
- PageBuildProvider.cs
- StringReader.cs
- LogicalExpressionEditor.cs
- DateTimeParse.cs
- ToolStripItemCollection.cs
- XmlAttributeCollection.cs
- Renderer.cs
- StrongNamePublicKeyBlob.cs
- UnionExpr.cs
- CompoundFileDeflateTransform.cs
- TemplateKeyConverter.cs
- DiscoveryServiceExtension.cs
- SerializationInfoEnumerator.cs
- CommandDevice.cs
- SafeEventLogReadHandle.cs
- KeyToListMap.cs
- XmlNamespaceDeclarationsAttribute.cs
- UnmanagedMemoryAccessor.cs
- BitmapImage.cs
- ContentValidator.cs
- _SafeNetHandles.cs
- COM2FontConverter.cs
- ReadOnlyDataSource.cs
- DataGridDefaultColumnWidthTypeConverter.cs
- Enlistment.cs
- UpdateExpressionVisitor.cs
- ImpersonateTokenRef.cs
- DataTablePropertyDescriptor.cs
- BitmapCodecInfo.cs
- AppDomainManager.cs
- DbSetClause.cs
- HttpConfigurationSystem.cs
- UserControlParser.cs
- FixedSOMElement.cs
- ValidationPropertyAttribute.cs
- SoundPlayer.cs
- XamlTreeBuilder.cs
- HostingEnvironmentException.cs
- MatrixAnimationBase.cs
- ScrollEvent.cs
- SafeReversePInvokeHandle.cs
- ProfessionalColors.cs
- TypeUsage.cs
- EncoderParameter.cs
- DataGridCaption.cs
- OutputCacheProfile.cs
- ProcessHostFactoryHelper.cs
- VirtualizedItemProviderWrapper.cs
- CheckPair.cs
- ButtonFieldBase.cs
- ExpressionEditorAttribute.cs
- EntryPointNotFoundException.cs
- RectIndependentAnimationStorage.cs
- AssemblyBuilder.cs
- EventLogEntry.cs
- WinEventWrap.cs
- DispatchRuntime.cs
- DebugInfoGenerator.cs
- ApplicationCommands.cs
- ChameleonKey.cs
- HierarchicalDataBoundControlAdapter.cs
- SmiContext.cs
- SafeEventHandle.cs
- DelegateSerializationHolder.cs
- StandardToolWindows.cs
- BlockCollection.cs
- TaskHelper.cs
- RemoveStoryboard.cs
- GiveFeedbackEventArgs.cs
- SizeAnimationBase.cs
- TraceEventCache.cs
- HttpPostProtocolReflector.cs
- HideDisabledControlAdapter.cs