Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / MultiDataTrigger.cs / 1 / MultiDataTrigger.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Defines MultiDataTrigger object, akin to MultiTrigger except it // gets values from data. // //--------------------------------------------------------------------------- using MS.Utility; using System; using System.Diagnostics; using System.Collections.Specialized; using System.ComponentModel; using System.Windows.Data; using System.Windows.Markup; namespace System.Windows { ////// A multiple Style data conditional dependency driver /// [ContentProperty("Setters")] public sealed class MultiDataTrigger : 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.DataTrigger); } // Build conditions array from collection TriggerConditions = new TriggerCondition[_conditions.Count]; for (int i = 0; i < TriggerConditions.Length; ++i) { if (_conditions[i].SourceName != null && _conditions[i].SourceName.Length > 0) { throw new InvalidOperationException(SR.Get(SRID.SourceNameNotSupportedForDataTriggers)); } TriggerConditions[i] = new TriggerCondition( _conditions[i].Binding, LogicalOp.Equals, _conditions[i].Value); } // Set conditions array for all property triggers for (int i = 0; i < PropertyValues.Count; ++i) { PropertyValue propertyValue = PropertyValues[i]; propertyValue.Conditions = TriggerConditions; switch (propertyValue.ValueType) { case PropertyValueType.Trigger: propertyValue.ValueType = PropertyValueType.DataTrigger; break; case PropertyValueType.PropertyTriggerResource: propertyValue.ValueType = PropertyValueType.DataTriggerResource; break; default: throw new InvalidOperationException(SR.Get(SRID.UnexpectedValueTypeForDataTrigger, propertyValue.ValueType)); } // 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++ ) { retVal = TriggerConditions[i].ConvertAndMatch(StyleHelper.GetDataTriggerValue(dataField, container, TriggerConditions[i].Binding)); } 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. //---------------------------------------------------------------------------- // // // Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Defines MultiDataTrigger object, akin to MultiTrigger except it // gets values from data. // //--------------------------------------------------------------------------- using MS.Utility; using System; using System.Diagnostics; using System.Collections.Specialized; using System.ComponentModel; using System.Windows.Data; using System.Windows.Markup; namespace System.Windows { ////// A multiple Style data conditional dependency driver /// [ContentProperty("Setters")] public sealed class MultiDataTrigger : 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.DataTrigger); } // Build conditions array from collection TriggerConditions = new TriggerCondition[_conditions.Count]; for (int i = 0; i < TriggerConditions.Length; ++i) { if (_conditions[i].SourceName != null && _conditions[i].SourceName.Length > 0) { throw new InvalidOperationException(SR.Get(SRID.SourceNameNotSupportedForDataTriggers)); } TriggerConditions[i] = new TriggerCondition( _conditions[i].Binding, LogicalOp.Equals, _conditions[i].Value); } // Set conditions array for all property triggers for (int i = 0; i < PropertyValues.Count; ++i) { PropertyValue propertyValue = PropertyValues[i]; propertyValue.Conditions = TriggerConditions; switch (propertyValue.ValueType) { case PropertyValueType.Trigger: propertyValue.ValueType = PropertyValueType.DataTrigger; break; case PropertyValueType.PropertyTriggerResource: propertyValue.ValueType = PropertyValueType.DataTriggerResource; break; default: throw new InvalidOperationException(SR.Get(SRID.UnexpectedValueTypeForDataTrigger, propertyValue.ValueType)); } // 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++ ) { retVal = TriggerConditions[i].ConvertAndMatch(StyleHelper.GetDataTriggerValue(dataField, container, TriggerConditions[i].Binding)); } 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
- BitmapEffectInput.cs
- ColumnResizeAdorner.cs
- BindToObject.cs
- UIElementAutomationPeer.cs
- SqlCommandSet.cs
- Rules.cs
- UserNamePasswordValidator.cs
- EncryptedKey.cs
- WeakReference.cs
- Point4DValueSerializer.cs
- Environment.cs
- Bezier.cs
- XmlCDATASection.cs
- XXXInfos.cs
- xml.cs
- ToolStripGripRenderEventArgs.cs
- CursorConverter.cs
- GridViewDeleteEventArgs.cs
- XmlComplianceUtil.cs
- ComplexLine.cs
- WindowsAuthenticationEventArgs.cs
- AssemblyAttributes.cs
- Command.cs
- PerformanceCounter.cs
- EdmRelationshipNavigationPropertyAttribute.cs
- FlowDocumentPage.cs
- SymbolMethod.cs
- RouteUrlExpressionBuilder.cs
- EdmRelationshipNavigationPropertyAttribute.cs
- RepeaterCommandEventArgs.cs
- CompilerInfo.cs
- DesignerVerb.cs
- DataRowIndexBuffer.cs
- UdpDiscoveryEndpoint.cs
- DbParameterHelper.cs
- IsolatedStorageFilePermission.cs
- TextRangeBase.cs
- DynamicDocumentPaginator.cs
- WindowsScrollBar.cs
- NativeMethods.cs
- SmtpReplyReader.cs
- followingsibling.cs
- WebServiceHandler.cs
- FocusTracker.cs
- localization.cs
- UpdateTranslator.cs
- ConstructorNeedsTagAttribute.cs
- ToolStripDropDown.cs
- UmAlQuraCalendar.cs
- HyperLink.cs
- ToolStripItemTextRenderEventArgs.cs
- SafeHandles.cs
- SqlConnectionString.cs
- WorkerRequest.cs
- IntPtr.cs
- Aggregates.cs
- SqlDataReader.cs
- DesignerTransactionCloseEvent.cs
- TextSearch.cs
- NetworkInformationException.cs
- TextWriterTraceListener.cs
- configsystem.cs
- NeutralResourcesLanguageAttribute.cs
- CommandHelper.cs
- MailBnfHelper.cs
- EffectiveValueEntry.cs
- StrongNameHelpers.cs
- IntPtr.cs
- HtmlShimManager.cs
- ButtonRenderer.cs
- DatasetMethodGenerator.cs
- HwndSourceParameters.cs
- LongAverageAggregationOperator.cs
- FlowLayoutSettings.cs
- CaseCqlBlock.cs
- StreamUpgradeAcceptor.cs
- SliderAutomationPeer.cs
- DrawingContextDrawingContextWalker.cs
- _TimerThread.cs
- SystemTcpStatistics.cs
- BulletedListEventArgs.cs
- Parameter.cs
- ConfigurationManagerHelper.cs
- XmlC14NWriter.cs
- SecurityVerifiedMessage.cs
- BooleanAnimationBase.cs
- TableItemPattern.cs
- Vector3DValueSerializer.cs
- WebPartConnectionsDisconnectVerb.cs
- JsonDeserializer.cs
- ValidationSummaryDesigner.cs
- Internal.cs
- Events.cs
- SingleStorage.cs
- WebServiceResponseDesigner.cs
- IPAddressCollection.cs
- ProcessHostMapPath.cs
- TrackingRecord.cs
- BindingContext.cs
- SerializationFieldInfo.cs