Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / AccessibleTech / longhorn / Automation / UIAutomationClient / System / Windows / Automation / SelectionPattern.cs / 1 / SelectionPattern.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Client-side wrapper for Selection Pattern // // History: // 06/23/2003 : [....] Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Windows.Automation.Provider; using System.ComponentModel; using MS.Internal.Automation; namespace System.Windows.Automation { ////// Class representing containers that manage selection. /// #if (INTERNAL_COMPILE) internal class SelectionPattern: BasePattern #else public class SelectionPattern: BasePattern #endif { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private SelectionPattern(AutomationElement el, SafePatternHandle hPattern, bool cached) : base(el, hPattern) { _hPattern = hPattern; _cached = cached; } #endregion Constructors //------------------------------------------------------ // // Public Constants / Readonly Fields // //----------------------------------------------------- #region Public Constants and Readonly Fields ///Selection pattern public static readonly AutomationPattern Pattern = SelectionPatternIdentifiers.Pattern; ///Get the currently selected elements public static readonly AutomationProperty SelectionProperty = SelectionPatternIdentifiers.SelectionProperty; ///Indicates whether the control allows more than one element to be selected public static readonly AutomationProperty CanSelectMultipleProperty = SelectionPatternIdentifiers.CanSelectMultipleProperty; ///Indicates whether the control requires at least one element to be selected public static readonly AutomationProperty IsSelectionRequiredProperty = SelectionPatternIdentifiers.IsSelectionRequiredProperty; ////// Event ID: SelectionInvalidated - indicates that selection changed in a selection conainer. /// sourceElement refers to the selection container /// public static readonly AutomationEvent InvalidatedEvent = SelectionPatternIdentifiers.InvalidatedEvent; #endregion Public Constants and Readonly Fields //------------------------------------------------------ // // Public Methods // //------------------------------------------------------ #region Public Methods // No public methods #endregion Public Methods //----------------------------------------------------- // // Public Properties // //------------------------------------------------------ #region Public Properties ////// This member allows access to previously requested /// cached properties for this element. The returned object /// has accessors for each property defined for this pattern. /// ////// Cached property values must have been previously requested /// using a CacheRequest. If you try to access a cached /// property that was not previously requested, an InvalidOperation /// Exception will be thrown. /// /// To get the value of a property at the current point in time, /// access the property via the Current accessor instead of /// Cached. /// public SelectionPatternInformation Cached { get { Misc.ValidateCached(_cached); return new SelectionPatternInformation(_el, true); } } ////// This member allows access to current property values /// for this element. The returned object has accessors for /// each property defined for this pattern. /// ////// This pattern must be from an AutomationElement with a /// Full reference in order to get current values. If the /// AutomationElement was obtained using AutomationElementMode.None, /// then it contains only cached data, and attempting to get /// the current value of any property will throw an InvalidOperationException. /// /// To get the cached value of a property that was previously /// specified using a CacheRequest, access the property via the /// Cached accessor instead of Current. /// public SelectionPatternInformation Current { get { Misc.ValidateCurrent(_hPattern); return new SelectionPatternInformation(_el, false); } } #endregion Public Properties //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods internal static object Wrap(AutomationElement el, SafePatternHandle hPattern, bool cached) { return new SelectionPattern(el, hPattern, cached); } #endregion Internal Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private SafePatternHandle _hPattern; private bool _cached; #endregion Private Fields //----------------------------------------------------- // // Nested Classes // //------------------------------------------------------ #region Nested Classes ////// This class provides access to either Cached or Current /// properties on a pattern via the pattern's .Cached or /// .Current accessors. /// public struct SelectionPatternInformation { //------------------------------------------------------ // // Constructors // //----------------------------------------------------- #region Constructors internal SelectionPatternInformation(AutomationElement el, bool useCache) { _el = el; _useCache = useCache; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods ////// Get the currently selected elements /// ///An AutomationElement array containing the currently selected elements /// ////// This API does not work inside the secure execution environment. /// public AutomationElement[] GetSelection() { return (AutomationElement[])_el.GetPatternPropertyValue(SelectionProperty, _useCache); } #endregion Public Methods //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- #region Public Properties ////// /// Indicates whether the control allows more than one element to be selected /// ///Boolean indicating whether the control allows more than one element to be selected ///If this is false, then the control is a single-select ccntrol /// ////// This API does not work inside the secure execution environment. /// public bool CanSelectMultiple { get { return (bool)_el.GetPatternPropertyValue(CanSelectMultipleProperty, _useCache); } } ////// /// Indicates whether the control requires at least one element to be selected /// ///Boolean indicating whether the control requires at least one element to be selected ///If this is false, then the control allows all elements to be unselected /// ////// This API does not work inside the secure execution environment. /// public bool IsSelectionRequired { get { return (bool)_el.GetPatternPropertyValue(IsSelectionRequiredProperty, _useCache); } } #endregion Public Properties //------------------------------------------------------ // // Private Fields // //----------------------------------------------------- #region Private Fields private AutomationElement _el; // AutomationElement that contains the cache or live reference private bool _useCache; // true to use cache, false to use live reference to get current values #endregion Private Fields } #endregion Nested Classes } } // 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
- MessageQueueConverter.cs
- InstallerTypeAttribute.cs
- IdentitySection.cs
- ColumnBinding.cs
- HostAdapter.cs
- PenThreadPool.cs
- DbConnectionPoolOptions.cs
- BamlRecordReader.cs
- LineSegment.cs
- _emptywebproxy.cs
- ExpressionBuilderCollection.cs
- DataGridViewSelectedColumnCollection.cs
- MarginCollapsingState.cs
- SQLMembershipProvider.cs
- XsdDuration.cs
- FrameworkRichTextComposition.cs
- ListControl.cs
- RuleSettingsCollection.cs
- ExecutedRoutedEventArgs.cs
- PresentationTraceSources.cs
- DataGridViewElement.cs
- StylusPoint.cs
- ClientScriptItemCollection.cs
- Connector.xaml.cs
- ArraySet.cs
- XmlTypeAttribute.cs
- WrappedIUnknown.cs
- FixedDocumentPaginator.cs
- OracleBFile.cs
- SoapAttributeAttribute.cs
- RangeBaseAutomationPeer.cs
- Int16KeyFrameCollection.cs
- ResourcesBuildProvider.cs
- StringUtil.cs
- SortKey.cs
- PseudoWebRequest.cs
- ToolStripGrip.cs
- StrongNameKeyPair.cs
- DrawingGroupDrawingContext.cs
- wgx_render.cs
- FixedSOMPage.cs
- XmlHierarchicalDataSourceView.cs
- AggregatePushdown.cs
- DataPagerCommandEventArgs.cs
- ThumbAutomationPeer.cs
- SiteMembershipCondition.cs
- UniqueIdentifierService.cs
- FrameworkReadOnlyPropertyMetadata.cs
- Line.cs
- MergablePropertyAttribute.cs
- QueryableDataSource.cs
- Inline.cs
- DataControlReference.cs
- CommonRemoteMemoryBlock.cs
- HttpWebRequestElement.cs
- SqlGatherConsumedAliases.cs
- LoginView.cs
- UInt32.cs
- CodeSubDirectory.cs
- EmptyReadOnlyDictionaryInternal.cs
- cryptoapiTransform.cs
- GeneratedCodeAttribute.cs
- X500Name.cs
- AutoGeneratedFieldProperties.cs
- SignerInfo.cs
- Timer.cs
- XmlName.cs
- DataBindingExpressionBuilder.cs
- DefaultBinder.cs
- SettingsPropertyIsReadOnlyException.cs
- JavaScriptObjectDeserializer.cs
- TextEditorContextMenu.cs
- ProvidersHelper.cs
- FolderNameEditor.cs
- MdImport.cs
- CustomActivityDesigner.cs
- TogglePattern.cs
- XPathParser.cs
- SecurityTokenParametersEnumerable.cs
- HandleValueEditor.cs
- TrackBar.cs
- BinHexEncoding.cs
- DataTableReaderListener.cs
- TypeReference.cs
- MailSettingsSection.cs
- DataMisalignedException.cs
- ByeMessageCD1.cs
- NavigationProperty.cs
- ToolStripSystemRenderer.cs
- HierarchicalDataSourceDesigner.cs
- FrameworkElementAutomationPeer.cs
- WebHttpDispatchOperationSelector.cs
- ByteConverter.cs
- MarshalDirectiveException.cs
- CrossSiteScriptingValidation.cs
- UnionCqlBlock.cs
- DetailsViewAutoFormat.cs
- XmlLanguageConverter.cs
- StringComparer.cs
- MessageBox.cs