Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / UIAutomation / UIAutomationClient / System / Windows / Automation / SelectionPattern.cs / 1305600 / SelectionPattern.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Client-side wrapper for Selection Pattern // // History: // 06/23/2003 : BrendanM 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
- EmitterCache.cs
- SystemDropShadowChrome.cs
- ImmComposition.cs
- ItemMap.cs
- SwitchLevelAttribute.cs
- RelationshipNavigation.cs
- DataGridPagerStyle.cs
- GorillaCodec.cs
- SqlInternalConnection.cs
- BamlRecordWriter.cs
- _AutoWebProxyScriptWrapper.cs
- TypeSystem.cs
- GeneralTransform3DCollection.cs
- LongValidatorAttribute.cs
- WindowsProgressbar.cs
- DataRecordInternal.cs
- SpecialNameAttribute.cs
- SinglePhaseEnlistment.cs
- PaintEvent.cs
- SequenceDesigner.cs
- DrawListViewColumnHeaderEventArgs.cs
- FontDriver.cs
- BaseTreeIterator.cs
- ListControlConvertEventArgs.cs
- RelationshipManager.cs
- UrlMappingsModule.cs
- HtmlElementEventArgs.cs
- HashAlgorithm.cs
- Win32Exception.cs
- PrimitiveXmlSerializers.cs
- BlockCollection.cs
- SafeNativeMemoryHandle.cs
- DefaultMemberAttribute.cs
- serverconfig.cs
- TimeSpanStorage.cs
- IndicCharClassifier.cs
- WsdlBuildProvider.cs
- AttributeTable.cs
- EntityDataSourceChangedEventArgs.cs
- FormViewPagerRow.cs
- FilterQueryOptionExpression.cs
- Delegate.cs
- TextLineBreak.cs
- UriSectionReader.cs
- AsyncDataRequest.cs
- ApplicationInterop.cs
- PropVariant.cs
- Selection.cs
- HttpCookiesSection.cs
- PeerSecurityManager.cs
- CompoundFileDeflateTransform.cs
- SystemIPInterfaceStatistics.cs
- TransformCryptoHandle.cs
- CodeSnippetExpression.cs
- ExpressionBuilderContext.cs
- ListItemParagraph.cs
- StringInfo.cs
- SemaphoreSecurity.cs
- XmlILIndex.cs
- KeyFrames.cs
- Knowncolors.cs
- RegexCaptureCollection.cs
- Timer.cs
- TargetControlTypeCache.cs
- BooleanProjectedSlot.cs
- UpdateProgress.cs
- UInt64Converter.cs
- PermissionSetEnumerator.cs
- XamlStyleSerializer.cs
- AutoScrollHelper.cs
- ValueSerializer.cs
- HostingEnvironmentSection.cs
- DesignerVerbToolStripMenuItem.cs
- CqlBlock.cs
- Thread.cs
- JsonWriter.cs
- SizeAnimation.cs
- StandardCommandToolStripMenuItem.cs
- AutomationTextAttribute.cs
- TreeBuilder.cs
- TrackingProfileManager.cs
- NetDispatcherFaultException.cs
- BitmapEffect.cs
- NotImplementedException.cs
- ItemsPresenter.cs
- Triangle.cs
- ImplicitInputBrush.cs
- Int16AnimationUsingKeyFrames.cs
- WeakReadOnlyCollection.cs
- PropertyOrder.cs
- TargetConverter.cs
- RequestReplyCorrelator.cs
- _FixedSizeReader.cs
- CallTemplateAction.cs
- WebAdminConfigurationHelper.cs
- ConstraintStruct.cs
- SoapReflectionImporter.cs
- HTMLTagNameToTypeMapper.cs
- CustomBindingElement.cs
- BindingUtils.cs