protected internal override bool ApplyTo(Activity rootActivity)
{
if (rootActivity == null)
{
throw new ArgumentNullException("rootActivity");
}
if (!(rootActivity is CompositeActivity))
{
throw new ArgumentException(SR.GetString(SR.Error_RootActivityTypeInvalid), "rootActivity");
}
CompositeActivity ownerActivity = rootActivity.TraverseDottedPathFromRoot(this.OwnerActivityDottedPath) as CompositeActivity;
if (ownerActivity == null)
{
return(false);
}
// !!!work around:
ownerActivity.DynamicUpdateMode = true;
CompositeActivity addedActivityOwner = this.addedActivity.Parent;
try
{
this.addedActivity.SetParent(ownerActivity);
Activity clonedAddedActivity = this.addedActivity;
if (!this.addedActivity.DesignMode)
{
clonedAddedActivity = this.addedActivity.Clone();
}
// We need to serialize and deserialize in order to clone during design mode
else
{
TypeProvider typeProvider = WorkflowChanges.CreateTypeProvider(rootActivity);
ServiceContainer serviceContainer = new ServiceContainer();
serviceContainer.AddService(typeof(ITypeProvider), typeProvider);
DesignerSerializationManager manager = new DesignerSerializationManager(serviceContainer);
WorkflowMarkupSerializer xomlSerializer = new WorkflowMarkupSerializer();
string addedActivityText = string.Empty;
// serialize dynamic updates
using (manager.CreateSession())
{
using (StringWriter sw = new StringWriter(CultureInfo.InvariantCulture))
{
using (XmlWriter xmlWriter = Helpers.CreateXmlWriter(sw))
{
WorkflowMarkupSerializationManager xomlSerializationManager = new WorkflowMarkupSerializationManager(manager);
xomlSerializer.Serialize(xomlSerializationManager, xmlWriter, this.addedActivity);
addedActivityText = sw.ToString();
}
}
// deserialize those
using (StringReader sr = new StringReader(addedActivityText))
{
using (XmlReader xmlReader = XmlReader.Create(sr))
{
WorkflowMarkupSerializationManager xomlSerializationManager = new WorkflowMarkupSerializationManager(manager);
clonedAddedActivity = xomlSerializer.Deserialize(xomlSerializationManager, xmlReader) as Activity;
}
}
}
if (clonedAddedActivity == null)
{
throw new InvalidOperationException(SR.GetString(SR.Error_ApplyDynamicChangeFailed));
}
}
if (ownerActivity.WorkflowCoreRuntime != null)
{
((IDependencyObjectAccessor)clonedAddedActivity).InitializeInstanceForRuntime(ownerActivity.WorkflowCoreRuntime);
}
clonedAddedActivity.SetParent(null);
ownerActivity.Activities.Insert(this.index, clonedAddedActivity);
}
finally
{
this.addedActivity.SetParent(addedActivityOwner);
ownerActivity.DynamicUpdateMode = false;
}
return(true);
}
protected internal override bool ApplyTo(Activity rootActivity)
{
if (rootActivity == null)
{
throw new ArgumentNullException("rootActivity");
}
if (!(rootActivity is CompositeActivity))
{
throw new ArgumentException(SR.GetString("Error_RootActivityTypeInvalid"), "rootActivity");
}
CompositeActivity compositeActivity = rootActivity.TraverseDottedPathFromRoot(base.OwnerActivityDottedPath) as CompositeActivity;
if (compositeActivity == null)
{
return(false);
}
compositeActivity.DynamicUpdateMode = true;
CompositeActivity parent = this.addedActivity.Parent;
try
{
this.addedActivity.SetParent(compositeActivity);
Activity addedActivity = this.addedActivity;
if (!this.addedActivity.DesignMode)
{
addedActivity = this.addedActivity.Clone();
}
else
{
TypeProvider serviceInstance = WorkflowChanges.CreateTypeProvider(rootActivity);
ServiceContainer provider = new ServiceContainer();
provider.AddService(typeof(ITypeProvider), serviceInstance);
DesignerSerializationManager manager = new DesignerSerializationManager(provider);
WorkflowMarkupSerializer serializer = new WorkflowMarkupSerializer();
string s = string.Empty;
using (manager.CreateSession())
{
using (StringWriter writer = new StringWriter(CultureInfo.InvariantCulture))
{
using (XmlWriter writer2 = Helpers.CreateXmlWriter(writer))
{
WorkflowMarkupSerializationManager serializationManager = new WorkflowMarkupSerializationManager(manager);
serializer.Serialize(serializationManager, writer2, this.addedActivity);
s = writer.ToString();
}
}
using (StringReader reader = new StringReader(s))
{
using (XmlReader reader2 = XmlReader.Create(reader))
{
WorkflowMarkupSerializationManager manager3 = new WorkflowMarkupSerializationManager(manager);
addedActivity = serializer.Deserialize(manager3, reader2) as Activity;
}
}
}
if (addedActivity == null)
{
throw new InvalidOperationException(SR.GetString("Error_ApplyDynamicChangeFailed"));
}
}
if (compositeActivity.WorkflowCoreRuntime != null)
{
((IDependencyObjectAccessor)addedActivity).InitializeInstanceForRuntime(compositeActivity.WorkflowCoreRuntime);
}
addedActivity.SetParent(null);
compositeActivity.Activities.Insert(this.index, addedActivity);
}
finally
{
this.addedActivity.SetParent(parent);
compositeActivity.DynamicUpdateMode = false;
}
return(true);
}