Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / UIAutomation / UIAutomationClient / System / Windows / Automation / ValuePattern.cs / 1305600 / ValuePattern.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Client-side wrapper for Value Pattern // // History: // 06/23/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows.Automation.Provider; using MS.Internal.Automation; namespace System.Windows.Automation { ////// Represents UI elements that are expressing a value /// #if (INTERNAL_COMPILE) internal class ValuePattern: BasePattern #else public class ValuePattern: BasePattern #endif { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // internal so that RangeValue can derive from this internal ValuePattern(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 ///Value pattern public static readonly AutomationPattern Pattern = ValuePatternIdentifiers.Pattern; ///Property ID: Value - Value of a value control, as a human-readable string public static readonly AutomationProperty ValueProperty = ValuePatternIdentifiers.ValueProperty; ///Property ID: IsReadOnly - Indicates that the value can only be read, not modified. public static readonly AutomationProperty IsReadOnlyProperty = ValuePatternIdentifiers.IsReadOnlyProperty; #endregion Public Constants and Readonly Fields //------------------------------------------------------ // // Public Methods // //------------------------------------------------------ #region Public Methods ////// Request to set the value that this UI element is representing /// /// Value to set the UI to, the provider is responsible for converting from a string into the appropriate data type /// ////// This API does not work inside the secure execution environment. /// public void SetValue( string value ) { Misc.ValidateArgumentNonNull(value, "value"); // Test the Enabled state prior to the more general Read-Only state. object enabled = _el.GetCurrentPropertyValue(AutomationElementIdentifiers.IsEnabledProperty); if (enabled is bool && !(bool)enabled) { throw new ElementNotEnabledException(); } // Test the Read-Only state after the more specific Enabled state. object readOnly = _el.GetCurrentPropertyValue(IsReadOnlyProperty); if (readOnly is bool && (bool)readOnly) { throw new InvalidOperationException(SR.Get(SRID.ValueReadonly)); } UiaCoreApi.ValuePattern_SetValue(_hPattern, value); } #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 ValuePatternInformation Cached { get { Misc.ValidateCached(_cached); return new ValuePatternInformation(_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 ValuePatternInformation Current { get { Misc.ValidateCurrent(_hPattern); return new ValuePatternInformation(_el, false); } } #endregion Public Properties //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods static internal object Wrap(AutomationElement el, SafePatternHandle hPattern, bool cached) { return new ValuePattern(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 ValuePatternInformation { //------------------------------------------------------ // // Constructors // //----------------------------------------------------- #region Constructors internal ValuePatternInformation(AutomationElement el, bool useCache) { _el = el; _useCache = useCache; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ///Value of a value control, as a a string. /// ////// This API does not work inside the secure execution environment. /// public string Value { get { // object temp = _el.GetPatternPropertyValue(ValueProperty, _useCache); return temp.ToString(); } } ////// Indicates that the value can only be read, not modified. ///returns True if the control is read-only /// ////// This API does not work inside the secure execution environment. /// public bool IsReadOnly { get { return (bool)_el.GetPatternPropertyValue(IsReadOnlyProperty, _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. //---------------------------------------------------------------------------- // ///// // Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Client-side wrapper for Value Pattern // // History: // 06/23/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows.Automation.Provider; using MS.Internal.Automation; namespace System.Windows.Automation { ////// Represents UI elements that are expressing a value /// #if (INTERNAL_COMPILE) internal class ValuePattern: BasePattern #else public class ValuePattern: BasePattern #endif { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // internal so that RangeValue can derive from this internal ValuePattern(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 ///Value pattern public static readonly AutomationPattern Pattern = ValuePatternIdentifiers.Pattern; ///Property ID: Value - Value of a value control, as a human-readable string public static readonly AutomationProperty ValueProperty = ValuePatternIdentifiers.ValueProperty; ///Property ID: IsReadOnly - Indicates that the value can only be read, not modified. public static readonly AutomationProperty IsReadOnlyProperty = ValuePatternIdentifiers.IsReadOnlyProperty; #endregion Public Constants and Readonly Fields //------------------------------------------------------ // // Public Methods // //------------------------------------------------------ #region Public Methods ////// Request to set the value that this UI element is representing /// /// Value to set the UI to, the provider is responsible for converting from a string into the appropriate data type /// ////// This API does not work inside the secure execution environment. /// public void SetValue( string value ) { Misc.ValidateArgumentNonNull(value, "value"); // Test the Enabled state prior to the more general Read-Only state. object enabled = _el.GetCurrentPropertyValue(AutomationElementIdentifiers.IsEnabledProperty); if (enabled is bool && !(bool)enabled) { throw new ElementNotEnabledException(); } // Test the Read-Only state after the more specific Enabled state. object readOnly = _el.GetCurrentPropertyValue(IsReadOnlyProperty); if (readOnly is bool && (bool)readOnly) { throw new InvalidOperationException(SR.Get(SRID.ValueReadonly)); } UiaCoreApi.ValuePattern_SetValue(_hPattern, value); } #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 ValuePatternInformation Cached { get { Misc.ValidateCached(_cached); return new ValuePatternInformation(_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 ValuePatternInformation Current { get { Misc.ValidateCurrent(_hPattern); return new ValuePatternInformation(_el, false); } } #endregion Public Properties //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods static internal object Wrap(AutomationElement el, SafePatternHandle hPattern, bool cached) { return new ValuePattern(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 ValuePatternInformation { //------------------------------------------------------ // // Constructors // //----------------------------------------------------- #region Constructors internal ValuePatternInformation(AutomationElement el, bool useCache) { _el = el; _useCache = useCache; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ///Value of a value control, as a a string. /// ////// This API does not work inside the secure execution environment. /// public string Value { get { // object temp = _el.GetPatternPropertyValue(ValueProperty, _useCache); return temp.ToString(); } } ////// Indicates that the value can only be read, not modified. ///returns True if the control is read-only /// ////// This API does not work inside the secure execution environment. /// public bool IsReadOnly { get { return (bool)_el.GetPatternPropertyValue(IsReadOnlyProperty, _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
- DocumentPage.cs
- OleDbCommandBuilder.cs
- CharKeyFrameCollection.cs
- WebPartManagerInternals.cs
- WithStatement.cs
- UserControl.cs
- KeyValueSerializer.cs
- StackBuilderSink.cs
- ErrorHandler.cs
- ToolStripControlHost.cs
- AuthenticationService.cs
- DelegatingTypeDescriptionProvider.cs
- PropertyEmitter.cs
- FrameworkContentElement.cs
- RegularExpressionValidator.cs
- ProtectedConfiguration.cs
- CodeGeneratorOptions.cs
- arabicshape.cs
- PeerApplication.cs
- MatrixIndependentAnimationStorage.cs
- ListViewCancelEventArgs.cs
- RepeaterItemCollection.cs
- ExtendedProtectionPolicyTypeConverter.cs
- OutputCache.cs
- SafeCryptContextHandle.cs
- ResizeGrip.cs
- PerformanceCounterPermission.cs
- SqlClientWrapperSmiStreamChars.cs
- RangeBase.cs
- ControlCollection.cs
- MultiDataTrigger.cs
- DataSourceProvider.cs
- XPathNodeHelper.cs
- UriTemplateDispatchFormatter.cs
- Wildcard.cs
- COM2IProvidePropertyBuilderHandler.cs
- DecimalConstantAttribute.cs
- HttpDebugHandler.cs
- SweepDirectionValidation.cs
- NullRuntimeConfig.cs
- CompleteWizardStep.cs
- Path.cs
- ToolStripDropTargetManager.cs
- OleDbErrorCollection.cs
- ClientSideQueueItem.cs
- ProjectedWrapper.cs
- Win32.cs
- ThemeInfoAttribute.cs
- hwndwrapper.cs
- ColumnHeader.cs
- SmtpCommands.cs
- TextServicesHost.cs
- HtmlLink.cs
- DiffuseMaterial.cs
- PreviewPageInfo.cs
- WebPartsPersonalizationAuthorization.cs
- WmlImageAdapter.cs
- Activator.cs
- ConstrainedGroup.cs
- CodeDOMUtility.cs
- ApplicationServiceHelper.cs
- ToolStripManager.cs
- Brush.cs
- Point.cs
- ParamArrayAttribute.cs
- DummyDataSource.cs
- RadioButton.cs
- BindingUtils.cs
- securestring.cs
- StatementContext.cs
- PageHandlerFactory.cs
- GeneralTransform3D.cs
- SecurityCredentialsManager.cs
- DateTimeSerializationSection.cs
- XmlDataSource.cs
- ReferenceConverter.cs
- OleCmdHelper.cs
- WorkflowInvoker.cs
- BadImageFormatException.cs
- FormatConvertedBitmap.cs
- Propagator.cs
- OSFeature.cs
- OleDbConnectionPoolGroupProviderInfo.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- AssociationSet.cs
- RedistVersionInfo.cs
- MediaElement.cs
- FixedPageStructure.cs
- InteropEnvironment.cs
- ConfigurationManagerInternalFactory.cs
- exports.cs
- AppliesToBehaviorDecisionTable.cs
- ControlPropertyNameConverter.cs
- IndependentlyAnimatedPropertyMetadata.cs
- UIElement.cs
- ToolStripSystemRenderer.cs
- RunClient.cs
- AssemblyInfo.cs
- X509SecurityTokenParameters.cs
- Int32Rect.cs