// return true if really something is dropped, otherwise, false.
bool DoAutoWrapDrop(InsertionPosition insertionPos, IEnumerable <object> droppedObjects)
{
List <Activity> activityList = ObjectList2ActivityList(droppedObjects);
if (activityList.Count == 0)
{
return(false);
}
AutoWrapEventArgs args = new AutoWrapEventArgs()
{
InsertionPosition = insertionPos,
ExistingActivity = this.MyActivity,
ActivitiesToBeInserted = activityList
};
using (ModelEditingScope scope = this.Context.Services.GetService <ModelService>().Root.BeginEdit(SR.WrapInSequenceDescription))
{
ModelItem sequenceActivity = WorkflowItemPresenter.AutoWrapInSequenceHandler(this.Context, args);
if (this.UpdateItem(sequenceActivity, true))
{
scope.Complete();
return(true);
}
else
{
scope.Revert();
return(false);
}
}
}
private static ModelItem AutoWrapInSequenceHandler(EditingContext editingContext, AutoWrapEventArgs e)
{
Fx.Assert(e.ExistingActivity != null || e.InsertionPosition == InsertionPosition.None,
"Existing activity must not be null");
ModelItem sequence = editingContext.Services.GetService<ModelTreeManager>().CreateModelItem(null, new Sequence());
foreach (Activity activity in e.ActivitiesToBeInserted)
{
sequence.Properties["Activities"].Collection.Add(activity);
}
switch (e.InsertionPosition)
{
case InsertionPosition.Before:
sequence.Properties["Activities"].Collection.Add(e.ExistingActivity);
break;
case InsertionPosition.After:
sequence.Properties["Activities"].Collection.Insert(0, e.ExistingActivity);
break;
case InsertionPosition.None:
break;
default:
Fx.Assert("Invalid insert position");
break;
}
return sequence;
}
// return true if really something is dropped, otherwise, false.
bool DoAutoWrapDrop(InsertionPosition insertionPos, IEnumerable<object> droppedObjects)
{
List<Activity> activityList = ObjectList2ActivityList(droppedObjects);
if (activityList.Count == 0)
{
return false;
}
AutoWrapEventArgs args = new AutoWrapEventArgs()
{
InsertionPosition = insertionPos,
ExistingActivity = this.MyActivity,
ActivitiesToBeInserted = activityList
};
using (ModelEditingScope scope = this.Context.Services.GetService<ModelService>().Root.BeginEdit(SR.WrapInSequenceDescription))
{
ModelItem sequenceActivity = WorkflowItemPresenter.AutoWrapInSequenceHandler(this.Context, args);
if (this.UpdateItem(sequenceActivity, true))
{
scope.Complete();
return true;
}
else
{
scope.Revert();
return false;
}
}
}
private static ModelItem AutoWrapInSequenceHandler(EditingContext editingContext, AutoWrapEventArgs e)
{
Fx.Assert(e.ExistingActivity != null || e.InsertionPosition == InsertionPosition.None,
"Existing activity must not be null");
ModelItem sequence = editingContext.Services.GetService <ModelTreeManager>().CreateModelItem(null, new Sequence());
foreach (Activity activity in e.ActivitiesToBeInserted)
{
sequence.Properties["Activities"].Collection.Add(activity);
}
switch (e.InsertionPosition)
{
case InsertionPosition.Before:
sequence.Properties["Activities"].Collection.Add(e.ExistingActivity);
break;
case InsertionPosition.After:
sequence.Properties["Activities"].Collection.Insert(0, e.ExistingActivity);
break;
case InsertionPosition.None:
break;
default:
Fx.Assert("Invalid insert position");
break;
}
return(sequence);
}
