Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / MultiTrigger.cs / 1305600 / MultiTrigger.cs
using System.Collections.Specialized; using System.ComponentModel; using System.IO; using System.Windows.Markup; using MS.Utility; using System; using System.Diagnostics; namespace System.Windows { ////// A multiple Style property conditional dependency driver /// [ContentProperty("Setters")] public sealed class MultiTrigger : TriggerBase, IAddChild { ////// Conditions collection /// [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public ConditionCollection Conditions { get { // Verify Context Access VerifyAccess(); return _conditions; } } ////// Collection of Setter objects, which describes what to apply /// when this trigger is active. /// [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public SetterBaseCollection Setters { get { // Verify Context Access VerifyAccess(); if( _setters == null ) { _setters = new SetterBaseCollection(); } return _setters; } } ////// This method is called to Add a Setter object as a child of the Style. /// /// /// The object to add as a child; it must be a Setter or subclass. /// void IAddChild.AddChild (Object value) { // Verify Context Access VerifyAccess(); Setters.Add(Trigger.CheckChildIsSetter(value)); } ////// This method is called by the parser when text appears under the tag in markup. /// As default Styles do not support text, calling this method has no effect. /// /// /// Text to add as a child. /// void IAddChild.AddText (string text) { // Verify Context Access VerifyAccess(); XamlSerializerUtil.ThrowIfNonWhiteSpaceInAddText(text, this); } internal override void Seal() { if (IsSealed) { return; } // Process the _setters collection: Copy values into PropertyValueList and seal the Setter objects. ProcessSettersCollection(_setters); if (_conditions.Count > 0) { // Seal conditions _conditions.Seal(ValueLookupType.Trigger); } // Build conditions array from collection TriggerConditions = new TriggerCondition[_conditions.Count]; for (int i = 0; i < TriggerConditions.Length; i++) { TriggerConditions[i] = new TriggerCondition( _conditions[i].Property, LogicalOp.Equals, _conditions[i].Value, (_conditions[i].SourceName != null) ? _conditions[i].SourceName : StyleHelper.SelfName); } // Set conditions array for all property triggers for (int i = 0; i < PropertyValues.Count; i++) { PropertyValue propertyValue = PropertyValues[i]; propertyValue.Conditions = TriggerConditions; // Put back modified struct PropertyValues[i] = propertyValue; } base.Seal(); } // evaluate the current state of the trigger internal override bool GetCurrentState(DependencyObject container, UncommonFielddataField) { bool retVal = (TriggerConditions.Length > 0); for( int i = 0; retVal && i < TriggerConditions.Length; i++ ) { Debug.Assert( TriggerConditions[i].SourceChildIndex == 0, "This method was created to handle properties on the containing object, more work is needed to handle templated children too." ); retVal = TriggerConditions[i].Match(container.GetValue(TriggerConditions[i].Property)); } return retVal; } private ConditionCollection _conditions = new ConditionCollection(); private SetterBaseCollection _setters = null; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System.Collections.Specialized; using System.ComponentModel; using System.IO; using System.Windows.Markup; using MS.Utility; using System; using System.Diagnostics; namespace System.Windows { /// /// A multiple Style property conditional dependency driver /// [ContentProperty("Setters")] public sealed class MultiTrigger : TriggerBase, IAddChild { ////// Conditions collection /// [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public ConditionCollection Conditions { get { // Verify Context Access VerifyAccess(); return _conditions; } } ////// Collection of Setter objects, which describes what to apply /// when this trigger is active. /// [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public SetterBaseCollection Setters { get { // Verify Context Access VerifyAccess(); if( _setters == null ) { _setters = new SetterBaseCollection(); } return _setters; } } ////// This method is called to Add a Setter object as a child of the Style. /// /// /// The object to add as a child; it must be a Setter or subclass. /// void IAddChild.AddChild (Object value) { // Verify Context Access VerifyAccess(); Setters.Add(Trigger.CheckChildIsSetter(value)); } ////// This method is called by the parser when text appears under the tag in markup. /// As default Styles do not support text, calling this method has no effect. /// /// /// Text to add as a child. /// void IAddChild.AddText (string text) { // Verify Context Access VerifyAccess(); XamlSerializerUtil.ThrowIfNonWhiteSpaceInAddText(text, this); } internal override void Seal() { if (IsSealed) { return; } // Process the _setters collection: Copy values into PropertyValueList and seal the Setter objects. ProcessSettersCollection(_setters); if (_conditions.Count > 0) { // Seal conditions _conditions.Seal(ValueLookupType.Trigger); } // Build conditions array from collection TriggerConditions = new TriggerCondition[_conditions.Count]; for (int i = 0; i < TriggerConditions.Length; i++) { TriggerConditions[i] = new TriggerCondition( _conditions[i].Property, LogicalOp.Equals, _conditions[i].Value, (_conditions[i].SourceName != null) ? _conditions[i].SourceName : StyleHelper.SelfName); } // Set conditions array for all property triggers for (int i = 0; i < PropertyValues.Count; i++) { PropertyValue propertyValue = PropertyValues[i]; propertyValue.Conditions = TriggerConditions; // Put back modified struct PropertyValues[i] = propertyValue; } base.Seal(); } // evaluate the current state of the trigger internal override bool GetCurrentState(DependencyObject container, UncommonFielddataField) { bool retVal = (TriggerConditions.Length > 0); for( int i = 0; retVal && i < TriggerConditions.Length; i++ ) { Debug.Assert( TriggerConditions[i].SourceChildIndex == 0, "This method was created to handle properties on the containing object, more work is needed to handle templated children too." ); retVal = TriggerConditions[i].Match(container.GetValue(TriggerConditions[i].Property)); } return retVal; } private ConditionCollection _conditions = new ConditionCollection(); private SetterBaseCollection _setters = null; } } // 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
- Internal.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- SystemUnicastIPAddressInformation.cs
- FilterQuery.cs
- ChangeInterceptorAttribute.cs
- Soap.cs
- NotSupportedException.cs
- ProtocolElementCollection.cs
- processwaithandle.cs
- UnsafeMethods.cs
- SizeF.cs
- SettingsPropertyNotFoundException.cs
- WindowsSolidBrush.cs
- CacheMemory.cs
- SqlMultiplexer.cs
- URLAttribute.cs
- HtmlDocument.cs
- WebPageTraceListener.cs
- ServiceModelConfiguration.cs
- SchemaElementLookUpTableEnumerator.cs
- HtmlTable.cs
- SByteConverter.cs
- ProtocolsConfigurationHandler.cs
- StructuralType.cs
- ContractHandle.cs
- WebRequestModuleElementCollection.cs
- CompiledAction.cs
- DetailsViewRowCollection.cs
- SoapFault.cs
- BlockCollection.cs
- TextRunCache.cs
- EntityViewGenerationConstants.cs
- SvcMapFileSerializer.cs
- CommonDialog.cs
- FrameworkRichTextComposition.cs
- XmlSerializer.cs
- ExpressionVisitor.cs
- Helpers.cs
- ToolStripItemCollection.cs
- InternalTypeHelper.cs
- WizardStepBase.cs
- EnumerableCollectionView.cs
- CodeTryCatchFinallyStatement.cs
- ApplicationContext.cs
- DesignTimeHTMLTextWriter.cs
- LedgerEntry.cs
- _NegoStream.cs
- HttpRawResponse.cs
- SmtpSection.cs
- BitmapPalettes.cs
- RMPermissions.cs
- RSAPKCS1SignatureDeformatter.cs
- DataKeyArray.cs
- RSAOAEPKeyExchangeDeformatter.cs
- ScrollViewerAutomationPeer.cs
- DatatypeImplementation.cs
- XmlnsCompatibleWithAttribute.cs
- BinaryMessageEncodingElement.cs
- SchemaImporterExtensionElement.cs
- PointAnimationUsingKeyFrames.cs
- LicenseManager.cs
- Component.cs
- KnownBoxes.cs
- Propagator.Evaluator.cs
- DataGridViewCellErrorTextNeededEventArgs.cs
- DataGridViewElement.cs
- DataListItemCollection.cs
- Keywords.cs
- SearchForVirtualItemEventArgs.cs
- ColorConvertedBitmap.cs
- StringSorter.cs
- MonthChangedEventArgs.cs
- SubqueryRules.cs
- StorageEntityContainerMapping.cs
- StreamWithDictionary.cs
- RelationshipEndMember.cs
- ViewValidator.cs
- DirtyTextRange.cs
- XmlComment.cs
- DESCryptoServiceProvider.cs
- ProtocolsConfiguration.cs
- ResourcePermissionBaseEntry.cs
- OptionUsage.cs
- UnmanagedMemoryStream.cs
- DataGridViewCellStyleBuilderDialog.cs
- SessionStateSection.cs
- BackEase.cs
- sqlstateclientmanager.cs
- DetailsView.cs
- ControlValuePropertyAttribute.cs
- SqlIdentifier.cs
- XmlRootAttribute.cs
- MouseEventArgs.cs
- XslVisitor.cs
- HtmlImage.cs
- Renderer.cs
- TraceSource.cs
- Configuration.cs
- DataGridViewRowDividerDoubleClickEventArgs.cs
- HandlerWithFactory.cs