Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / xsp / System / Web / Extensions / Util / OrderedDictionary.cs / 1 / OrderedDictionary.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Util { using System; using System.Collections; using System.Collections.Generic; internal class OrderedDictionary: IDictionary { private Dictionary _dictionary; private List _keys; private List _values; // Cannot easily support ctor that takes IEqualityComparer, since List doesn't have an easy // way to use the IEqualityComparer. public OrderedDictionary() : this(0) { } public OrderedDictionary(int capacity) { _dictionary = new Dictionary (capacity); _keys = new List (capacity); _values = new List (capacity); } public int Count { get { return _dictionary.Count; } } public ICollection Keys { get { return _keys.AsReadOnly(); } } public TValue this[TKey key] { get { return _dictionary[key]; } set { // If key has already been added, we must first remove it from the lists so it is not // in the lists multiple times. RemoveFromLists(key); _dictionary[key] = value; _keys.Add(key); _values.Add(value); } } public ICollection Values { get { return _values.AsReadOnly(); } } public void Add(TKey key, TValue value) { // Dictionary.Add() will throw if it already contains key _dictionary.Add(key, value); _keys.Add(key); _values.Add(value); } public void Clear() { _dictionary.Clear(); _keys.Clear(); _values.Clear(); } public bool ContainsKey(TKey key) { return _dictionary.ContainsKey(key); } public bool ContainsValue(TValue value) { return _dictionary.ContainsValue(value); } public IEnumerator > GetEnumerator() { int i = 0; // Must use foreach instead of a for loop, since we want the underlying List enumerator to // throw an exception if the list is modified during enumeration. foreach (TKey key in _keys) { yield return new KeyValuePair (key, _values[i]); i++; } } private void RemoveFromLists(TKey key) { int index = _keys.IndexOf(key); if (index != -1) { _keys.RemoveAt(index); _values.RemoveAt(index); } } public bool Remove(TKey key) { RemoveFromLists(key); return _dictionary.Remove(key); } public bool TryGetValue(TKey key, out TValue value) { return _dictionary.TryGetValue(key, out value); } #region ICollection > Members bool ICollection >.IsReadOnly { get { return ((ICollection >)_dictionary).IsReadOnly; } } void ICollection >.Add(KeyValuePair item) { Add(item.Key, item.Value); } bool ICollection >.Contains(KeyValuePair item) { return ((ICollection >)_dictionary).Contains(item); } void ICollection >.CopyTo(KeyValuePair [] array, int arrayIndex) { ((ICollection >)_dictionary).CopyTo(array, arrayIndex); } bool ICollection >.Remove(KeyValuePair item) { bool removed = ((ICollection >)_dictionary).Remove(item); // Only remove from lists if it was removed from the dictionary, since the dictionary may contain // the key but not the value. if (removed) { RemoveFromLists(item.Key); } return removed; } #endregion #region IEnumerable Members IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Util { using System; using System.Collections; using System.Collections.Generic; internal class OrderedDictionary: IDictionary { private Dictionary _dictionary; private List _keys; private List _values; // Cannot easily support ctor that takes IEqualityComparer, since List doesn't have an easy // way to use the IEqualityComparer. public OrderedDictionary() : this(0) { } public OrderedDictionary(int capacity) { _dictionary = new Dictionary (capacity); _keys = new List (capacity); _values = new List (capacity); } public int Count { get { return _dictionary.Count; } } public ICollection Keys { get { return _keys.AsReadOnly(); } } public TValue this[TKey key] { get { return _dictionary[key]; } set { // If key has already been added, we must first remove it from the lists so it is not // in the lists multiple times. RemoveFromLists(key); _dictionary[key] = value; _keys.Add(key); _values.Add(value); } } public ICollection Values { get { return _values.AsReadOnly(); } } public void Add(TKey key, TValue value) { // Dictionary.Add() will throw if it already contains key _dictionary.Add(key, value); _keys.Add(key); _values.Add(value); } public void Clear() { _dictionary.Clear(); _keys.Clear(); _values.Clear(); } public bool ContainsKey(TKey key) { return _dictionary.ContainsKey(key); } public bool ContainsValue(TValue value) { return _dictionary.ContainsValue(value); } public IEnumerator > GetEnumerator() { int i = 0; // Must use foreach instead of a for loop, since we want the underlying List enumerator to // throw an exception if the list is modified during enumeration. foreach (TKey key in _keys) { yield return new KeyValuePair (key, _values[i]); i++; } } private void RemoveFromLists(TKey key) { int index = _keys.IndexOf(key); if (index != -1) { _keys.RemoveAt(index); _values.RemoveAt(index); } } public bool Remove(TKey key) { RemoveFromLists(key); return _dictionary.Remove(key); } public bool TryGetValue(TKey key, out TValue value) { return _dictionary.TryGetValue(key, out value); } #region ICollection > Members bool ICollection >.IsReadOnly { get { return ((ICollection >)_dictionary).IsReadOnly; } } void ICollection >.Add(KeyValuePair item) { Add(item.Key, item.Value); } bool ICollection >.Contains(KeyValuePair item) { return ((ICollection >)_dictionary).Contains(item); } void ICollection >.CopyTo(KeyValuePair [] array, int arrayIndex) { ((ICollection >)_dictionary).CopyTo(array, arrayIndex); } bool ICollection >.Remove(KeyValuePair item) { bool removed = ((ICollection >)_dictionary).Remove(item); // Only remove from lists if it was removed from the dictionary, since the dictionary may contain // the key but not the value. if (removed) { RemoveFromLists(item.Key); } return removed; } #endregion #region IEnumerable Members IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } #endregion } } // 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
- PageEventArgs.cs
- UIElementHelper.cs
- NetPipeSectionData.cs
- AsyncContentLoadedEventArgs.cs
- WorkflowServiceInstance.cs
- TreeView.cs
- XmlFileEditor.cs
- HtmlImage.cs
- WebPart.cs
- Matrix.cs
- DataTableMappingCollection.cs
- AppSettingsExpressionBuilder.cs
- RequestQueue.cs
- StackOverflowException.cs
- KnownTypesHelper.cs
- EnvelopedSignatureTransform.cs
- SqlErrorCollection.cs
- EditorPartCollection.cs
- XAMLParseException.cs
- Convert.cs
- EdmToObjectNamespaceMap.cs
- FormParameter.cs
- PropertyChangingEventArgs.cs
- HttpHeaderCollection.cs
- WebPartDescriptionCollection.cs
- SqlExpressionNullability.cs
- userdatakeys.cs
- SvcMapFileLoader.cs
- PrinterResolution.cs
- BrowserCapabilitiesCodeGenerator.cs
- SingleConverter.cs
- RectConverter.cs
- WebBrowserDesigner.cs
- SqlBinder.cs
- DbException.cs
- CustomWebEventKey.cs
- DiagnosticsConfigurationHandler.cs
- LayoutManager.cs
- MetadataArtifactLoader.cs
- StandardToolWindows.cs
- DiscreteKeyFrames.cs
- WebException.cs
- WorkflowInstanceProvider.cs
- ChangeInterceptorAttribute.cs
- Trace.cs
- SqlConnectionPoolGroupProviderInfo.cs
- PeerNameRecordCollection.cs
- FileStream.cs
- SecUtil.cs
- TextEffect.cs
- SessionPageStateSection.cs
- DetailsView.cs
- CodeObjectCreateExpression.cs
- NativeActivityAbortContext.cs
- ImageAttributes.cs
- OleDbConnection.cs
- EdmItemError.cs
- ObjectDataSourceWizardForm.cs
- WindowsScrollBar.cs
- EncoderExceptionFallback.cs
- XmlUtil.cs
- Component.cs
- EdgeProfileValidation.cs
- TabletDevice.cs
- ZoneMembershipCondition.cs
- ArraySortHelper.cs
- CodeExpressionStatement.cs
- ToolTipAutomationPeer.cs
- CatchBlock.cs
- EdmToObjectNamespaceMap.cs
- _NestedMultipleAsyncResult.cs
- HttpCapabilitiesEvaluator.cs
- DirectoryNotFoundException.cs
- TypeDelegator.cs
- SecondaryIndexList.cs
- SynchronizedInputPattern.cs
- Point4D.cs
- CompositeCollection.cs
- AQNBuilder.cs
- TreeNodeBindingDepthConverter.cs
- XhtmlTextWriter.cs
- ComboBoxAutomationPeer.cs
- MSAAEventDispatcher.cs
- DataColumnPropertyDescriptor.cs
- UserPersonalizationStateInfo.cs
- GroupBoxAutomationPeer.cs
- CodeRemoveEventStatement.cs
- SQLSingleStorage.cs
- ToolboxItemImageConverter.cs
- PersonalizationEntry.cs
- GroupQuery.cs
- SecurityIdentifierElementCollection.cs
- OperatingSystem.cs
- ProxyAttribute.cs
- WindowsAuthenticationModule.cs
- EventPropertyMap.cs
- ListItemCollection.cs
- XPathSelfQuery.cs
- RequestCachePolicy.cs
- InternalDispatchObject.cs