Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / DataKey.cs / 1305376 / DataKey.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics.CodeAnalysis; ////// public class DataKey : IStateManager, IEquatable{ private IOrderedDictionary _keyTable; private bool _isTracking; private string[] _keyNames; public DataKey(IOrderedDictionary keyTable) { _keyTable = keyTable; } public DataKey(IOrderedDictionary keyTable, string[] keyNames) : this(keyTable) { _keyNames = keyNames; } /// /// Inheritable overridable implementation of IsTrackingViewState /// protected virtual bool IsTrackingViewState { get { return _isTracking; } } public virtual object this[int index] { get { if (_keyTable != null) { return _keyTable[index]; } return null; } } public virtual object this[string name] { get { if (_keyTable != null) { return _keyTable[name]; } return null; } } public virtual object Value { get { if ((_keyTable != null) && (_keyTable.Count > 0)) { return _keyTable[0]; } return null; } } public virtual IOrderedDictionary Values { get { if (_keyTable == null) { return null; } if (_keyTable is OrderedDictionary) { return ((OrderedDictionary)_keyTable).AsReadOnly(); } // don't return the actual table because we don't want the user to mess with it. if (_keyTable is ICloneable) { return (IOrderedDictionary)((ICloneable)_keyTable).Clone(); } OrderedDictionary table = new OrderedDictionary(); foreach (DictionaryEntry entry in _keyTable) { table.Add(entry.Key, entry.Value); } return table.AsReadOnly(); } } ////// Inheritable overridable implementation of LoadViewState /// protected virtual void LoadViewState(object state) { if (state != null) { if (_keyNames != null) { object[] myState = (object[])state; // if we have key names, then we only stored values. if (myState[0] != null) { for (int i = 0; i < myState.Length && i < _keyNames.Length; i++) { _keyTable.Add(_keyNames[i], myState[i]); } } } else { if (state != null) { ArrayList stateArrayList = state as ArrayList; if (stateArrayList == null) { throw new HttpException(SR.GetString(SR.ViewState_InvalidViewState)); } OrderedDictionaryStateHelper.LoadViewState(_keyTable, stateArrayList); } } } } ////// Inheritable overridable implementation of SaveViewState /// protected virtual object SaveViewState() { int count = _keyTable.Count; if (count > 0) { object myState; if (_keyNames != null) { // if we have key names, then we only have to store values. myState = new object[count]; for (int i = 0; i < count; i++) { ((object[])myState)[i] = _keyTable[i]; } } else { myState = OrderedDictionaryStateHelper.SaveViewState(_keyTable); } return myState; } return null; } ////// Inheritable overridable implementation of TrackViewState /// protected virtual void TrackViewState() { _isTracking = true; } #region IStateManager implementation ///bool IStateManager.IsTrackingViewState { get { return IsTrackingViewState; } } /// void IStateManager.LoadViewState(object state) { LoadViewState(state); } /// object IStateManager.SaveViewState() { return SaveViewState(); } /// void IStateManager.TrackViewState() { TrackViewState(); } #endregion #region IEquatable Members [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")] public bool Equals(DataKey other) { if (other == null) { return false; } string[] aKeys = _keyNames; string[] bKeys = other._keyNames; if (aKeys == null && _keyTable != null) { aKeys = new string[_keyTable.Count]; _keyTable.Keys.CopyTo(aKeys, 0); } if (bKeys == null && _keyTable != null) { bKeys = new string[other._keyTable.Count]; other._keyTable.Keys.CopyTo(bKeys, 0); } // Compare the keys array bool hasSameKeyNames = DataBoundControlHelper.CompareStringArrays(aKeys, bKeys); if (hasSameKeyNames) { if (aKeys != null && bKeys != null) { foreach (string key in aKeys) { if (!Object.Equals(this[key], other[key])) { return false; } } } return true; } return false; } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics.CodeAnalysis; ////// public class DataKey : IStateManager, IEquatable{ private IOrderedDictionary _keyTable; private bool _isTracking; private string[] _keyNames; public DataKey(IOrderedDictionary keyTable) { _keyTable = keyTable; } public DataKey(IOrderedDictionary keyTable, string[] keyNames) : this(keyTable) { _keyNames = keyNames; } /// /// Inheritable overridable implementation of IsTrackingViewState /// protected virtual bool IsTrackingViewState { get { return _isTracking; } } public virtual object this[int index] { get { if (_keyTable != null) { return _keyTable[index]; } return null; } } public virtual object this[string name] { get { if (_keyTable != null) { return _keyTable[name]; } return null; } } public virtual object Value { get { if ((_keyTable != null) && (_keyTable.Count > 0)) { return _keyTable[0]; } return null; } } public virtual IOrderedDictionary Values { get { if (_keyTable == null) { return null; } if (_keyTable is OrderedDictionary) { return ((OrderedDictionary)_keyTable).AsReadOnly(); } // don't return the actual table because we don't want the user to mess with it. if (_keyTable is ICloneable) { return (IOrderedDictionary)((ICloneable)_keyTable).Clone(); } OrderedDictionary table = new OrderedDictionary(); foreach (DictionaryEntry entry in _keyTable) { table.Add(entry.Key, entry.Value); } return table.AsReadOnly(); } } ////// Inheritable overridable implementation of LoadViewState /// protected virtual void LoadViewState(object state) { if (state != null) { if (_keyNames != null) { object[] myState = (object[])state; // if we have key names, then we only stored values. if (myState[0] != null) { for (int i = 0; i < myState.Length && i < _keyNames.Length; i++) { _keyTable.Add(_keyNames[i], myState[i]); } } } else { if (state != null) { ArrayList stateArrayList = state as ArrayList; if (stateArrayList == null) { throw new HttpException(SR.GetString(SR.ViewState_InvalidViewState)); } OrderedDictionaryStateHelper.LoadViewState(_keyTable, stateArrayList); } } } } ////// Inheritable overridable implementation of SaveViewState /// protected virtual object SaveViewState() { int count = _keyTable.Count; if (count > 0) { object myState; if (_keyNames != null) { // if we have key names, then we only have to store values. myState = new object[count]; for (int i = 0; i < count; i++) { ((object[])myState)[i] = _keyTable[i]; } } else { myState = OrderedDictionaryStateHelper.SaveViewState(_keyTable); } return myState; } return null; } ////// Inheritable overridable implementation of TrackViewState /// protected virtual void TrackViewState() { _isTracking = true; } #region IStateManager implementation ///bool IStateManager.IsTrackingViewState { get { return IsTrackingViewState; } } /// void IStateManager.LoadViewState(object state) { LoadViewState(state); } /// object IStateManager.SaveViewState() { return SaveViewState(); } /// void IStateManager.TrackViewState() { TrackViewState(); } #endregion #region IEquatable Members [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")] public bool Equals(DataKey other) { if (other == null) { return false; } string[] aKeys = _keyNames; string[] bKeys = other._keyNames; if (aKeys == null && _keyTable != null) { aKeys = new string[_keyTable.Count]; _keyTable.Keys.CopyTo(aKeys, 0); } if (bKeys == null && _keyTable != null) { bKeys = new string[other._keyTable.Count]; other._keyTable.Keys.CopyTo(bKeys, 0); } // Compare the keys array bool hasSameKeyNames = DataBoundControlHelper.CompareStringArrays(aKeys, bKeys); if (hasSameKeyNames) { if (aKeys != null && bKeys != null) { foreach (string key in aKeys) { if (!Object.Equals(this[key], other[key])) { return false; } } } return true; } return false; } #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
- HandleCollector.cs
- ToolBar.cs
- InvalidProgramException.cs
- BulletedListEventArgs.cs
- SqlNode.cs
- InvokeProviderWrapper.cs
- ListMarkerSourceInfo.cs
- Ops.cs
- ExeConfigurationFileMap.cs
- Help.cs
- OleDbStruct.cs
- IsolationInterop.cs
- ReferencedAssemblyResolver.cs
- ExpressionConverter.cs
- DictionaryBase.cs
- SessionStateUtil.cs
- SettingsAttributes.cs
- DefaultTraceListener.cs
- ManipulationCompletedEventArgs.cs
- SqlReferenceCollection.cs
- FileUpload.cs
- ClientBuildManagerCallback.cs
- StateMachine.cs
- TransferRequestHandler.cs
- TemplateControlCodeDomTreeGenerator.cs
- GradientBrush.cs
- XmlSerializerNamespaces.cs
- ConfigXmlText.cs
- EasingFunctionBase.cs
- PersonalizationStateQuery.cs
- GridViewRowCollection.cs
- BCLDebug.cs
- CacheDependency.cs
- ResourcePool.cs
- ComponentRenameEvent.cs
- DesignerOptions.cs
- XmlILStorageConverter.cs
- SerializationObjectManager.cs
- PrintDocument.cs
- ImageCodecInfoPrivate.cs
- ProxyGenerator.cs
- VirtualPathData.cs
- DbMetaDataFactory.cs
- HttpValueCollection.cs
- CombinedGeometry.cs
- DragDrop.cs
- InvalidWMPVersionException.cs
- DynamicValidatorEventArgs.cs
- BezierSegment.cs
- UrlPath.cs
- SchemaCreator.cs
- AnimationException.cs
- WebBaseEventKeyComparer.cs
- CustomLineCap.cs
- XmlDictionary.cs
- HitTestDrawingContextWalker.cs
- SessionSwitchEventArgs.cs
- BitmapMetadataEnumerator.cs
- XmlNamespaceMapping.cs
- SamlAuthenticationStatement.cs
- IPAddressCollection.cs
- AuthenticationException.cs
- EditorZone.cs
- DbProviderConfigurationHandler.cs
- LockedAssemblyCache.cs
- securestring.cs
- TemplateControlParser.cs
- FileRecordSequenceCompletedAsyncResult.cs
- XhtmlMobileTextWriter.cs
- ProfileModule.cs
- FlowDocumentScrollViewer.cs
- TextElement.cs
- CompilationUtil.cs
- DBDataPermission.cs
- UserPreferenceChangingEventArgs.cs
- BeginSelectCardRequest.cs
- ItemChangedEventArgs.cs
- HorizontalAlignConverter.cs
- ToolStripArrowRenderEventArgs.cs
- XmlNotation.cs
- PerformanceCounterPermissionEntry.cs
- _ScatterGatherBuffers.cs
- DataPagerFieldItem.cs
- VirtualDirectoryMapping.cs
- XPathDescendantIterator.cs
- SafeNativeMethodsCLR.cs
- TabPageDesigner.cs
- ExpandableObjectConverter.cs
- TabPage.cs
- Storyboard.cs
- DeflateStream.cs
- TdsParserSessionPool.cs
- RSAPKCS1SignatureFormatter.cs
- BitmapEffectrendercontext.cs
- StringPropertyBuilder.cs
- UnsafeNativeMethods.cs
- BrowserCapabilitiesCompiler.cs
- TemplateNameScope.cs
- SQLGuid.cs
- CqlLexer.cs