Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / MultiDataTrigger.cs / 1305600 / 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
- UnsafeNativeMethods.cs
- SecurityKeyIdentifier.cs
- TrackingRecordPreFilter.cs
- BinaryConverter.cs
- smtppermission.cs
- EventMappingSettingsCollection.cs
- Util.cs
- Atom10FeedFormatter.cs
- BaseCollection.cs
- DataViewManager.cs
- CodeBlockBuilder.cs
- FocusTracker.cs
- WebPartTransformerAttribute.cs
- IssuedSecurityTokenParameters.cs
- DataGridPagerStyle.cs
- SecurityPermission.cs
- DefaultBindingPropertyAttribute.cs
- XmlEncodedRawTextWriter.cs
- SqlUserDefinedAggregateAttribute.cs
- ValidationManager.cs
- DropDownList.cs
- MarshalByValueComponent.cs
- GenericParameterDataContract.cs
- FilterableAttribute.cs
- RelAssertionDirectKeyIdentifierClause.cs
- CodeLabeledStatement.cs
- WorkflowMarkupSerializer.cs
- FileClassifier.cs
- SemaphoreSecurity.cs
- PolyLineSegment.cs
- DataProtection.cs
- AuthenticateEventArgs.cs
- ReversePositionQuery.cs
- TypeDelegator.cs
- XamlWriter.cs
- StorageAssociationSetMapping.cs
- ADConnectionHelper.cs
- DllNotFoundException.cs
- ProfileBuildProvider.cs
- ValidationEventArgs.cs
- DependencyObjectCodeDomSerializer.cs
- SecureEnvironment.cs
- Win32Exception.cs
- RewritingProcessor.cs
- SnapLine.cs
- DoubleLinkList.cs
- NamedPipeTransportSecurity.cs
- SslStreamSecurityUpgradeProvider.cs
- ContentElementAutomationPeer.cs
- HtmlContainerControl.cs
- SlipBehavior.cs
- TypeDescriptor.cs
- RegexMatchCollection.cs
- ConditionedDesigner.cs
- CngUIPolicy.cs
- ReliableChannelBinder.cs
- DesignerCommandSet.cs
- TypeToArgumentTypeConverter.cs
- Visual3D.cs
- SqlDataReader.cs
- DataGrid.cs
- MonthCalendarDesigner.cs
- ProtocolState.cs
- ListViewGroupItemCollection.cs
- Compiler.cs
- EditorPartChrome.cs
- ListParaClient.cs
- DocumentEventArgs.cs
- GradientBrush.cs
- SoapInteropTypes.cs
- DrawingAttributesDefaultValueFactory.cs
- AsymmetricAlgorithm.cs
- InstanceData.cs
- SqlInternalConnectionSmi.cs
- ControlPropertyNameConverter.cs
- SelectionItemProviderWrapper.cs
- DataGridTablesFactory.cs
- CompiledRegexRunner.cs
- ImageInfo.cs
- WindowsListViewSubItem.cs
- TextRange.cs
- NamespaceListProperty.cs
- BrowserTree.cs
- AsyncPostBackTrigger.cs
- ToolBarButton.cs
- Span.cs
- CodeTypeMemberCollection.cs
- DefaultExpressionVisitor.cs
- RequestResizeEvent.cs
- Material.cs
- TreeChangeInfo.cs
- HttpWebRequest.cs
- PeerNodeTraceRecord.cs
- ReadOnlyDictionary.cs
- ReceiveReply.cs
- CapabilitiesUse.cs
- TreeViewHitTestInfo.cs
- ScriptMethodAttribute.cs
- TabControlAutomationPeer.cs
- ColumnHeaderConverter.cs