public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIApplication _uiapp = commandData.Application;
UIDocument _uidoc = _uiapp.ActiveUIDocument;
Document _doc = _uidoc.Document;
View activeV = _doc.ActiveView;
SelectionFilterElement filterElement = new FilteredElementCollector(_doc)
.OfClass(typeof(SelectionFilterElement)).Cast <SelectionFilterElement>()
.Where(sf => sf.Name.Equals("Voiles Porteurs"))
.FirstOrDefault();
Transaction t = new Transaction(_doc);
t.Start("Creat filter");
// Dont find the filter in the doc, create a new filter
if (filterElement == null)
{
try
{
filterElement = SelectionFilterElement.Create(_doc, "Voiles Porteurs");
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
}
t.Commit();
// The filter is not added to the active view, add it to the view
//bool filterExistsInActiveView =
// activeV.GetFilters().Any(id => _doc.GetElement(id).Name.Equals("Voiles Porteurs"));
//if (!filterExistsInActiveView)
//{
// ViewTemplate.AddFilterToView(
// _doc, activeV, filterElement,
// new Color(000, 128, 255), new string[] { "Uni", "Solid fill" },
// new Color(000, 128, 255), new string[] { "Uni", "Solid fill" });
//}
// Add selected walls to the filter
IList <Reference> refIds;
try
{
refIds = _uidoc.Selection.PickObjects(ObjectType.Element,
new WallSelectionFilter(activeV.GenLevel.Id));
}
catch (Autodesk.Revit.Exceptions.OperationCanceledException)
{
return(Result.Cancelled);
}
t.Start("Add walls to filter");
foreach (Reference refe in refIds)
{
filterElement.AddSingle(refe.ElementId);
}
t.Commit();
ViewTemplate.RemoveFilterFromViewOrTemplate(_doc, activeV, filterElement);
ViewTemplate.AddFilterToViewOrTemplate(
_doc, activeV, filterElement,
new Color(000, 128, 255), new string[] { "Uni", "Solid fill" },
new Color(000, 128, 255), new string[] { "Uni", "Solid fill" });
_uidoc.RefreshActiveView();
return(Result.Succeeded);
}