Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / DataKey.cs / 1 / 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.Security.Permissions; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class DataKey : IStateManager { 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 { return _keyTable[index]; } } public virtual object this[string name] { get { return _keyTable[name]; } } public virtual object Value { get { if (_keyTable.Count > 0) { return _keyTable[0]; } return null; } } public virtual IOrderedDictionary Values { get { 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 } } // 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
- MultipartIdentifier.cs
- UITypeEditor.cs
- VirtualDirectoryMapping.cs
- SourceFileInfo.cs
- LogRecordSequence.cs
- ShaderRenderModeValidation.cs
- QuotedStringWriteStateInfo.cs
- ISCIIEncoding.cs
- HistoryEventArgs.cs
- InstanceCompleteException.cs
- recordstatefactory.cs
- SaveFileDialogDesigner.cs
- CodeParameterDeclarationExpression.cs
- ColorDialog.cs
- BitmapVisualManager.cs
- TimeSpan.cs
- COM2ColorConverter.cs
- SessionState.cs
- DependencyObject.cs
- ProtocolViolationException.cs
- ReadWriteSpinLock.cs
- SplineKeyFrames.cs
- CheckBoxBaseAdapter.cs
- AggregateNode.cs
- XmlEnumAttribute.cs
- SQLChars.cs
- WebZone.cs
- SqlDataSourceStatusEventArgs.cs
- OleDbCommandBuilder.cs
- TiffBitmapDecoder.cs
- XomlCompilerResults.cs
- Avt.cs
- TableItemPatternIdentifiers.cs
- BrowserCapabilitiesCompiler.cs
- ListView.cs
- Condition.cs
- AstNode.cs
- VarRefManager.cs
- DataPagerField.cs
- BitSet.cs
- TextTreeUndo.cs
- UrlPath.cs
- WindowsListViewItem.cs
- ServicesExceptionNotHandledEventArgs.cs
- HtmlTitle.cs
- ToolStripGrip.cs
- Track.cs
- LayoutEditorPart.cs
- DifferencingCollection.cs
- Attributes.cs
- StoreContentChangedEventArgs.cs
- FormatException.cs
- ADMembershipUser.cs
- FieldNameLookup.cs
- DataKey.cs
- XsltArgumentList.cs
- FixUpCollection.cs
- XmlTextReader.cs
- CrossSiteScriptingValidation.cs
- PassportAuthentication.cs
- BulletChrome.cs
- XmlSchemaResource.cs
- Int16Animation.cs
- ByteStreamGeometryContext.cs
- HttpFileCollection.cs
- XhtmlBasicPanelAdapter.cs
- ActivityDesignerAccessibleObject.cs
- BufferModesCollection.cs
- HtmlWindowCollection.cs
- TPLETWProvider.cs
- DataSourceView.cs
- HeaderedItemsControl.cs
- KnownIds.cs
- PropertiesTab.cs
- FixedPageProcessor.cs
- StructureChangedEventArgs.cs
- DebugView.cs
- QilTernary.cs
- PartialClassGenerationTask.cs
- CellTreeNodeVisitors.cs
- FactoryGenerator.cs
- GradientStopCollection.cs
- BezierSegment.cs
- WindowsMenu.cs
- FileLevelControlBuilderAttribute.cs
- ReverseInheritProperty.cs
- ShapingWorkspace.cs
- MimeBasePart.cs
- Interlocked.cs
- SymbolTable.cs
- ProfileSettingsCollection.cs
- SingleStorage.cs
- DynamicQueryableWrapper.cs
- ReferenceConverter.cs
- ExtensionSimplifierMarkupObject.cs
- ToolboxItemFilterAttribute.cs
- PrintDialog.cs
- ThicknessConverter.cs
- IdentityReference.cs
- StrongNameKeyPair.cs