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
- SafeNativeMethods.cs
- DependencyObject.cs
- securitycriticaldataClass.cs
- WebPartZoneCollection.cs
- StyleHelper.cs
- DefaultValueConverter.cs
- TransformedBitmap.cs
- OdbcHandle.cs
- UnsafeNativeMethods.cs
- BindingCollection.cs
- ComponentEditorForm.cs
- EdmToObjectNamespaceMap.cs
- ReflectEventDescriptor.cs
- GlyphRunDrawing.cs
- AttributedMetaModel.cs
- ListInitExpression.cs
- Token.cs
- Ppl.cs
- ChangeInterceptorAttribute.cs
- ConnectionInterfaceCollection.cs
- UrlAuthorizationModule.cs
- FixedPageAutomationPeer.cs
- HuffCodec.cs
- Pair.cs
- XmlTextReaderImplHelpers.cs
- RawStylusInputReport.cs
- RbTree.cs
- EventMappingSettingsCollection.cs
- Label.cs
- SqlRowUpdatedEvent.cs
- SecurityRequiresReviewAttribute.cs
- NullableBoolConverter.cs
- ActivityExecutionFilter.cs
- ParseChildrenAsPropertiesAttribute.cs
- RbTree.cs
- XsltOutput.cs
- FloatUtil.cs
- NamedPipeChannelFactory.cs
- PartialArray.cs
- WebChannelFactory.cs
- TearOffProxy.cs
- LogicalExpr.cs
- CommandPlan.cs
- ValueConversionAttribute.cs
- PersonalizationEntry.cs
- IBuiltInEvidence.cs
- BookmarkUndoUnit.cs
- DebugView.cs
- VectorAnimationBase.cs
- autovalidator.cs
- XomlDesignerLoader.cs
- Point4D.cs
- Journaling.cs
- SqlNamer.cs
- Annotation.cs
- ProcessHostMapPath.cs
- HttpServerVarsCollection.cs
- AxisAngleRotation3D.cs
- XmlEntityReference.cs
- ComponentChangingEvent.cs
- DesignerDataRelationship.cs
- ActivityDesignerLayoutSerializers.cs
- ContentDisposition.cs
- QilTargetType.cs
- HtmlInputHidden.cs
- SafeFileMappingHandle.cs
- PropertyFilterAttribute.cs
- WebBrowsableAttribute.cs
- Image.cs
- DoubleAnimationUsingKeyFrames.cs
- documentation.cs
- ConnectionsZone.cs
- BinaryObjectWriter.cs
- ToolStripPanelRenderEventArgs.cs
- DatatypeImplementation.cs
- TextEditorSelection.cs
- OrderToken.cs
- ContourSegment.cs
- CodeDirectionExpression.cs
- New.cs
- BooleanFunctions.cs
- TextDecorationCollection.cs
- DbDataReader.cs
- BindingExpressionBase.cs
- AttributeData.cs
- SettingsPropertyCollection.cs
- StreamSecurityUpgradeAcceptorAsyncResult.cs
- ScaleTransform.cs
- SqlTriggerContext.cs
- ControlCachePolicy.cs
- TextSpan.cs
- InputMethodStateChangeEventArgs.cs
- WebResourceAttribute.cs
- AsyncPostBackTrigger.cs
- SystemIPAddressInformation.cs
- ResXResourceReader.cs
- MaterialCollection.cs
- Cursors.cs
- Privilege.cs
- SqlIdentifier.cs