Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / Model / GenericArgumentsUpdater.cs / 1305376 / GenericArgumentsUpdater.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Model { using System; using System.Activities; using System.Diagnostics; using System.Linq; using System.Runtime; using System.Activities.Presentation.View; using System.Windows.Threading; class GenericArgumentUpdater { EditingContext context; const string TypeArgumentPropertyName = "TypeArgument"; public GenericArgumentUpdater(EditingContext context) { this.context = context; } public void AddSupportForUpdatingTypeArgument(Type modelItemType) { AttachedPropertytypeArgumentProperty = new AttachedProperty { Name = TypeArgumentPropertyName, OwnerType = modelItemType, Getter = (modelItem) => GetTypeArgument(modelItem), Setter = (modelItem, value) => UpdateTypeArgument(modelItem, value), IsBrowsable = true }; this.context.Services.GetService ().AddProperty(typeArgumentProperty); } private static void UpdateTypeArgument(ModelItem modelItem, Type value) { Type oldModelItemType = modelItem.ItemType; Fx.Assert(oldModelItemType.GetGenericArguments().Count() == 1, "we only support changing a single type parameter ?"); Type newModelItemType = oldModelItemType.GetGenericTypeDefinition().MakeGenericType(value); Fx.Assert(newModelItemType != null, "New model item type needs to be non null or we cannot proceed further"); ModelItem newModelItem = ModelFactory.CreateItem(modelItem.GetEditingContext(), Activator.CreateInstance(newModelItemType)); MorphHelper.MorphObject(modelItem, newModelItem); MorphHelper.MorphProperties(modelItem, newModelItem); if (oldModelItemType.IsSubclassOf(typeof(Activity)) && newModelItemType.IsSubclassOf(typeof(Activity))) { if (string.Equals((string)modelItem.Properties["DisplayName"].ComputedValue, GetActivityDefaultName(oldModelItemType), StringComparison.Ordinal)) { newModelItem.Properties["DisplayName"].SetValue(GetActivityDefaultName(newModelItemType)); } } DesignerView designerView = modelItem.GetEditingContext().Services.GetService (); if (designerView != null) { Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Render, (Action)(() => { if (designerView.RootDesigner != null && ((WorkflowViewElement)designerView.RootDesigner).ModelItem == modelItem) { designerView.MakeRootDesigner(newModelItem, true); } Selection.SelectOnly(modelItem.GetEditingContext(), newModelItem); })); } } private static Type GetTypeArgument(ModelItem modelItem) { Fx.Assert(modelItem.ItemType.GetGenericArguments().Count() == 1, "we only support changing a single type parameter ?"); return modelItem.ItemType.GetGenericArguments()[0]; } private static string GetActivityDefaultName(Type activityType) { Fx.Assert(activityType.IsSubclassOf(typeof(Activity)), "activityType is not a subclass of System.Activities.Activity"); Activity activity = (Activity)Activator.CreateInstance(activityType); return activity.DisplayName; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Model { using System; using System.Activities; using System.Diagnostics; using System.Linq; using System.Runtime; using System.Activities.Presentation.View; using System.Windows.Threading; class GenericArgumentUpdater { EditingContext context; const string TypeArgumentPropertyName = "TypeArgument"; public GenericArgumentUpdater(EditingContext context) { this.context = context; } public void AddSupportForUpdatingTypeArgument(Type modelItemType) { AttachedProperty typeArgumentProperty = new AttachedProperty { Name = TypeArgumentPropertyName, OwnerType = modelItemType, Getter = (modelItem) => GetTypeArgument(modelItem), Setter = (modelItem, value) => UpdateTypeArgument(modelItem, value), IsBrowsable = true }; this.context.Services.GetService ().AddProperty(typeArgumentProperty); } private static void UpdateTypeArgument(ModelItem modelItem, Type value) { Type oldModelItemType = modelItem.ItemType; Fx.Assert(oldModelItemType.GetGenericArguments().Count() == 1, "we only support changing a single type parameter ?"); Type newModelItemType = oldModelItemType.GetGenericTypeDefinition().MakeGenericType(value); Fx.Assert(newModelItemType != null, "New model item type needs to be non null or we cannot proceed further"); ModelItem newModelItem = ModelFactory.CreateItem(modelItem.GetEditingContext(), Activator.CreateInstance(newModelItemType)); MorphHelper.MorphObject(modelItem, newModelItem); MorphHelper.MorphProperties(modelItem, newModelItem); if (oldModelItemType.IsSubclassOf(typeof(Activity)) && newModelItemType.IsSubclassOf(typeof(Activity))) { if (string.Equals((string)modelItem.Properties["DisplayName"].ComputedValue, GetActivityDefaultName(oldModelItemType), StringComparison.Ordinal)) { newModelItem.Properties["DisplayName"].SetValue(GetActivityDefaultName(newModelItemType)); } } DesignerView designerView = modelItem.GetEditingContext().Services.GetService (); if (designerView != null) { Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Render, (Action)(() => { if (designerView.RootDesigner != null && ((WorkflowViewElement)designerView.RootDesigner).ModelItem == modelItem) { designerView.MakeRootDesigner(newModelItem, true); } Selection.SelectOnly(modelItem.GetEditingContext(), newModelItem); })); } } private static Type GetTypeArgument(ModelItem modelItem) { Fx.Assert(modelItem.ItemType.GetGenericArguments().Count() == 1, "we only support changing a single type parameter ?"); return modelItem.ItemType.GetGenericArguments()[0]; } private static string GetActivityDefaultName(Type activityType) { Fx.Assert(activityType.IsSubclassOf(typeof(Activity)), "activityType is not a subclass of System.Activities.Activity"); Activity activity = (Activity)Activator.CreateInstance(activityType); return activity.DisplayName; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ContentPropertyAttribute.cs
- DataKeyArray.cs
- GlobalProxySelection.cs
- HtmlSelect.cs
- ReferenceEqualityComparer.cs
- StaticTextPointer.cs
- DESCryptoServiceProvider.cs
- WorkflowFileItem.cs
- InputLanguageEventArgs.cs
- File.cs
- WindowsFormsHost.cs
- DataListAutoFormat.cs
- PersonalizationDictionary.cs
- SystemIPInterfaceStatistics.cs
- ExtendedPropertyCollection.cs
- IDictionary.cs
- IOException.cs
- DataColumnSelectionConverter.cs
- DataGridDefaultColumnWidthTypeConverter.cs
- TypedServiceOperationListItem.cs
- OracleString.cs
- EncryptedKeyHashIdentifierClause.cs
- ColorConverter.cs
- OLEDB_Util.cs
- CompositionTarget.cs
- DropShadowEffect.cs
- ApplicationInfo.cs
- DataGridViewTextBoxEditingControl.cs
- EntityException.cs
- Stopwatch.cs
- HtmlLink.cs
- XmlReaderDelegator.cs
- DataObjectMethodAttribute.cs
- CursorConverter.cs
- RemoteWebConfigurationHost.cs
- AppDomainProtocolHandler.cs
- MailHeaderInfo.cs
- MetadataSource.cs
- TemplatePartAttribute.cs
- PersonalizationAdministration.cs
- ExpressionWriter.cs
- SessionSwitchEventArgs.cs
- listitem.cs
- EpmContentSerializerBase.cs
- ValueOfAction.cs
- SqlCommand.cs
- figurelength.cs
- MessageQueueAccessControlEntry.cs
- TextTrailingCharacterEllipsis.cs
- UInt64.cs
- DbConnectionPoolIdentity.cs
- fixedPageContentExtractor.cs
- GridViewColumnCollection.cs
- Variable.cs
- ImageListStreamer.cs
- ReadOnlyHierarchicalDataSourceView.cs
- EditCommandColumn.cs
- FullTextLine.cs
- NamedElement.cs
- ToolStripLocationCancelEventArgs.cs
- AlgoModule.cs
- XPathNodeIterator.cs
- ReferenceEqualityComparer.cs
- DbgUtil.cs
- PageHandlerFactory.cs
- FrameworkRichTextComposition.cs
- AuthenticateEventArgs.cs
- UntrustedRecipientException.cs
- COM2EnumConverter.cs
- StylusLogic.cs
- DecoderBestFitFallback.cs
- XmlAggregates.cs
- ServiceManager.cs
- BinaryObjectWriter.cs
- SqlTypeSystemProvider.cs
- DetailsViewInsertEventArgs.cs
- relpropertyhelper.cs
- ButtonChrome.cs
- TypeLibConverter.cs
- _LocalDataStoreMgr.cs
- SamlConditions.cs
- NativeMethods.cs
- PlatformCulture.cs
- DockingAttribute.cs
- transactioncontext.cs
- Polyline.cs
- RequestDescription.cs
- ActivityDesignerHelper.cs
- PasswordPropertyTextAttribute.cs
- VariableReference.cs
- UniqueEventHelper.cs
- SqlMethodAttribute.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- OpenTypeLayoutCache.cs
- MSHTMLHost.cs
- UDPClient.cs
- RenderData.cs
- RoleService.cs
- PropertyAccessVisitor.cs
- ComponentGuaranteesAttribute.cs