Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Controls / Expander.cs / 1 / Expander.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.Windows; using System.Windows.Automation; using System.Windows.Automation.Peers; using System.Windows.Controls; using System.ComponentModel; using MS.Internal.KnownBoxes; namespace System.Windows.Controls { ////// Specifies the expanding direction of a expansion. /// public enum ExpandDirection { ////// Expander will expand to the down direction. /// Down = 0, ////// Expander will expand to the up direction. /// Up = 1, ////// Expander will expand to the left direction. /// Left = 2, ////// Expander will expand to the right direction. /// Right = 3, } ////// An Expander control allows a user to view a header and expand that /// header to see further details of the content, or to collapse the section /// up to the header to save space. /// [Localizability(LocalizationCategory.None, Readability = Readability.Unreadable)] // cannot be read & localized as string public class Expander : HeaderedContentControl { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors static Expander() { DefaultStyleKeyProperty.OverrideMetadata(typeof(Expander), new FrameworkPropertyMetadata(typeof(Expander))); _dType = DependencyObjectType.FromSystemTypeInternal(typeof(Expander)); IsTabStopProperty.OverrideMetadata(typeof(Expander), new FrameworkPropertyMetadata(BooleanBoxes.FalseBox)); } #endregion //-------------------------------------------------------------------- // // Public Properties // //------------------------------------------------------------------- #region Public Properties ////// ExpandDirection specifies to which direction the content will expand /// [Bindable(true), Category("Behavior")] public ExpandDirection ExpandDirection { get { return (ExpandDirection) GetValue(ExpandDirectionProperty); } set { SetValue(ExpandDirectionProperty, value); } } ////// The DependencyProperty for the ExpandDirection property. /// Default Value: ExpandDirection.Down /// public static readonly DependencyProperty ExpandDirectionProperty = DependencyProperty.Register( "ExpandDirection", typeof(ExpandDirection), typeof(Expander), new FrameworkPropertyMetadata( ExpandDirection.Down /* default value */, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault), new ValidateValueCallback(IsValidExpandDirection)); private static bool IsValidExpandDirection(object o) { ExpandDirection value = (ExpandDirection)o; return (value == ExpandDirection.Down || value == ExpandDirection.Left || value == ExpandDirection.Right || value == ExpandDirection.Up); } ////// The DependencyProperty for the IsExpanded property. /// Default Value: false /// public static readonly DependencyProperty IsExpandedProperty = DependencyProperty.Register( "IsExpanded", typeof(bool), typeof(Expander), new FrameworkPropertyMetadata( BooleanBoxes.FalseBox /* default value */, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault | FrameworkPropertyMetadataOptions.Journal, new PropertyChangedCallback(OnIsExpandedChanged))); private static void OnIsExpandedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { Expander ep = (Expander) d; bool newValue = (bool) e.NewValue; // Fire accessibility event ExpanderAutomationPeer peer = UIElementAutomationPeer.FromElement(ep) as ExpanderAutomationPeer; if(peer != null) { peer.RaiseExpandCollapseAutomationEvent(!newValue, newValue); } if (newValue) { ep.OnExpanded(); } else { ep.OnCollapsed(); } } ////// IsExpanded indicates whether the expander is currently expanded. /// [Bindable(true), Category("Appearance")] public bool IsExpanded { get { return (bool) GetValue(IsExpandedProperty); } set { SetValue(IsExpandedProperty, BooleanBoxes.Box(value)); } } ////// Expanded event. /// public static readonly RoutedEvent ExpandedEvent = EventManager.RegisterRoutedEvent("Expanded", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(Expander) ); ////// Expanded event. It is fired when IsExpanded changed from false to true. /// public event RoutedEventHandler Expanded { add { AddHandler(ExpandedEvent, value); } remove { RemoveHandler(ExpandedEvent, value); } } ////// Collapsed event. /// public static readonly RoutedEvent CollapsedEvent = EventManager.RegisterRoutedEvent("Collapsed", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(Expander) ); ////// Collapsed event. It is fired when IsExpanded changed from true to false. /// public event RoutedEventHandler Collapsed { add { AddHandler(CollapsedEvent, value); } remove { RemoveHandler(CollapsedEvent, value); } } #endregion //-------------------------------------------------------------------- // // Protected Methods // //-------------------------------------------------------------------- #region Protected Methods ////// A virtual function that is called when the IsExpanded property is changed to true. /// Default behavior is to raise an ExpandedEvent. /// protected virtual void OnExpanded() { RoutedEventArgs args = new RoutedEventArgs(); args.RoutedEvent =(Expander.ExpandedEvent); args.Source=this; RaiseEvent(args); } ////// A virtual function that is called when the IsExpanded property is changed to false. /// Default behavior is to raise a CollapsedEvent. /// protected virtual void OnCollapsed() { RaiseEvent(new RoutedEventArgs(Expander.CollapsedEvent, this)); } #endregion #region Accessibility ////// Creates AutomationPeer ( protected override AutomationPeer OnCreateAutomationPeer() { return new ExpanderAutomationPeer(this); } #endregion //------------------------------------------------------------------- // // Private Fields // //-------------------------------------------------------------------- #region Private Fields #endregion #region DTypeThemeStyleKey // Returns the DependencyObjectType for the registered ThemeStyleKey's default // value. Controls will override this method to return approriate types. internal override DependencyObjectType DTypeThemeStyleKey { get { return _dType; } } private static DependencyObjectType _dType; #endregion DTypeThemeStyleKey } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.Windows; using System.Windows.Automation; using System.Windows.Automation.Peers; using System.Windows.Controls; using System.ComponentModel; using MS.Internal.KnownBoxes; namespace System.Windows.Controls { ///) /// /// Specifies the expanding direction of a expansion. /// public enum ExpandDirection { ////// Expander will expand to the down direction. /// Down = 0, ////// Expander will expand to the up direction. /// Up = 1, ////// Expander will expand to the left direction. /// Left = 2, ////// Expander will expand to the right direction. /// Right = 3, } ////// An Expander control allows a user to view a header and expand that /// header to see further details of the content, or to collapse the section /// up to the header to save space. /// [Localizability(LocalizationCategory.None, Readability = Readability.Unreadable)] // cannot be read & localized as string public class Expander : HeaderedContentControl { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors static Expander() { DefaultStyleKeyProperty.OverrideMetadata(typeof(Expander), new FrameworkPropertyMetadata(typeof(Expander))); _dType = DependencyObjectType.FromSystemTypeInternal(typeof(Expander)); IsTabStopProperty.OverrideMetadata(typeof(Expander), new FrameworkPropertyMetadata(BooleanBoxes.FalseBox)); } #endregion //-------------------------------------------------------------------- // // Public Properties // //------------------------------------------------------------------- #region Public Properties ////// ExpandDirection specifies to which direction the content will expand /// [Bindable(true), Category("Behavior")] public ExpandDirection ExpandDirection { get { return (ExpandDirection) GetValue(ExpandDirectionProperty); } set { SetValue(ExpandDirectionProperty, value); } } ////// The DependencyProperty for the ExpandDirection property. /// Default Value: ExpandDirection.Down /// public static readonly DependencyProperty ExpandDirectionProperty = DependencyProperty.Register( "ExpandDirection", typeof(ExpandDirection), typeof(Expander), new FrameworkPropertyMetadata( ExpandDirection.Down /* default value */, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault), new ValidateValueCallback(IsValidExpandDirection)); private static bool IsValidExpandDirection(object o) { ExpandDirection value = (ExpandDirection)o; return (value == ExpandDirection.Down || value == ExpandDirection.Left || value == ExpandDirection.Right || value == ExpandDirection.Up); } ////// The DependencyProperty for the IsExpanded property. /// Default Value: false /// public static readonly DependencyProperty IsExpandedProperty = DependencyProperty.Register( "IsExpanded", typeof(bool), typeof(Expander), new FrameworkPropertyMetadata( BooleanBoxes.FalseBox /* default value */, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault | FrameworkPropertyMetadataOptions.Journal, new PropertyChangedCallback(OnIsExpandedChanged))); private static void OnIsExpandedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { Expander ep = (Expander) d; bool newValue = (bool) e.NewValue; // Fire accessibility event ExpanderAutomationPeer peer = UIElementAutomationPeer.FromElement(ep) as ExpanderAutomationPeer; if(peer != null) { peer.RaiseExpandCollapseAutomationEvent(!newValue, newValue); } if (newValue) { ep.OnExpanded(); } else { ep.OnCollapsed(); } } ////// IsExpanded indicates whether the expander is currently expanded. /// [Bindable(true), Category("Appearance")] public bool IsExpanded { get { return (bool) GetValue(IsExpandedProperty); } set { SetValue(IsExpandedProperty, BooleanBoxes.Box(value)); } } ////// Expanded event. /// public static readonly RoutedEvent ExpandedEvent = EventManager.RegisterRoutedEvent("Expanded", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(Expander) ); ////// Expanded event. It is fired when IsExpanded changed from false to true. /// public event RoutedEventHandler Expanded { add { AddHandler(ExpandedEvent, value); } remove { RemoveHandler(ExpandedEvent, value); } } ////// Collapsed event. /// public static readonly RoutedEvent CollapsedEvent = EventManager.RegisterRoutedEvent("Collapsed", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(Expander) ); ////// Collapsed event. It is fired when IsExpanded changed from true to false. /// public event RoutedEventHandler Collapsed { add { AddHandler(CollapsedEvent, value); } remove { RemoveHandler(CollapsedEvent, value); } } #endregion //-------------------------------------------------------------------- // // Protected Methods // //-------------------------------------------------------------------- #region Protected Methods ////// A virtual function that is called when the IsExpanded property is changed to true. /// Default behavior is to raise an ExpandedEvent. /// protected virtual void OnExpanded() { RoutedEventArgs args = new RoutedEventArgs(); args.RoutedEvent =(Expander.ExpandedEvent); args.Source=this; RaiseEvent(args); } ////// A virtual function that is called when the IsExpanded property is changed to false. /// Default behavior is to raise a CollapsedEvent. /// protected virtual void OnCollapsed() { RaiseEvent(new RoutedEventArgs(Expander.CollapsedEvent, this)); } #endregion #region Accessibility ////// Creates AutomationPeer ( protected override AutomationPeer OnCreateAutomationPeer() { return new ExpanderAutomationPeer(this); } #endregion //------------------------------------------------------------------- // // Private Fields // //-------------------------------------------------------------------- #region Private Fields #endregion #region DTypeThemeStyleKey // Returns the DependencyObjectType for the registered ThemeStyleKey's default // value. Controls will override this method to return approriate types. internal override DependencyObjectType DTypeThemeStyleKey { get { return _dType; } } private static DependencyObjectType _dType; #endregion DTypeThemeStyleKey } } // 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
- WindowsEditBox.cs
- NativeMethods.cs
- InlinedAggregationOperator.cs
- PersistChildrenAttribute.cs
- CompensationTokenData.cs
- TextRangeEditLists.cs
- DbMetaDataFactory.cs
- PrintPreviewGraphics.cs
- TreeViewBindingsEditorForm.cs
- HandlerMappingMemo.cs
- _ListenerResponseStream.cs
- WebPartEditorOkVerb.cs
- __Filters.cs
- CodeMethodMap.cs
- CopyAttributesAction.cs
- FillRuleValidation.cs
- ProfileInfo.cs
- ServiceReference.cs
- DataObjectEventArgs.cs
- StringSorter.cs
- SamlConditions.cs
- ArcSegment.cs
- DataBoundControlHelper.cs
- SqlDataSourceDesigner.cs
- MarshalDirectiveException.cs
- Int16KeyFrameCollection.cs
- OperationFormatter.cs
- DateTimeStorage.cs
- SecureUICommand.cs
- GlyphInfoList.cs
- BevelBitmapEffect.cs
- TextElementEditingBehaviorAttribute.cs
- Guid.cs
- GridPattern.cs
- ReadOnlyDictionary.cs
- SessionKeyExpiredException.cs
- HexParser.cs
- PointCollectionValueSerializer.cs
- Margins.cs
- NullableFloatAverageAggregationOperator.cs
- MsmqBindingElementBase.cs
- SqlProviderServices.cs
- XmlSerializerVersionAttribute.cs
- BooleanStorage.cs
- LockedActivityGlyph.cs
- shaperfactoryquerycachekey.cs
- DesignerView.Commands.cs
- DataError.cs
- XmlSchemaImport.cs
- AnchorEditor.cs
- TabControl.cs
- RuntimeConfig.cs
- ToolStripRendererSwitcher.cs
- CriticalHandle.cs
- HttpRequest.cs
- InvalidMessageContractException.cs
- TransactionTable.cs
- WriteableBitmap.cs
- Point3DCollection.cs
- NamespaceDisplayAutomationPeer.cs
- TouchesCapturedWithinProperty.cs
- CmsInterop.cs
- _DigestClient.cs
- ProgressChangedEventArgs.cs
- Point3DConverter.cs
- HandlerBase.cs
- BreakRecordTable.cs
- MsmqNonTransactedPoisonHandler.cs
- SqlXml.cs
- DbException.cs
- Rect3DValueSerializer.cs
- PointAnimationUsingPath.cs
- CommandID.cs
- MetadataItemEmitter.cs
- LoginAutoFormat.cs
- PenContext.cs
- MessageBox.cs
- infer.cs
- NavigationWindow.cs
- TheQuery.cs
- SmiEventStream.cs
- InvalidProgramException.cs
- XPathDocumentIterator.cs
- CheckBox.cs
- Size3DValueSerializer.cs
- NullableConverter.cs
- dbdatarecord.cs
- Wizard.cs
- FileSystemWatcher.cs
- DateTimeOffsetAdapter.cs
- GradientStop.cs
- MimeObjectFactory.cs
- IntersectQueryOperator.cs
- WebHostScriptMappingsInstallComponent.cs
- SchemaElement.cs
- ListQueryResults.cs
- UnhandledExceptionEventArgs.cs
- X509CertificateValidationMode.cs
- Screen.cs
- Underline.cs