protected override void Updater_ElementsDeleted(
Document document, IEnumerable <ElementId> deleted)
{
if (!SelectionResults.Any() ||
!document.Equals(SelectionOwner) ||
!deleted.Any())
{
return;
}
// If the deleting operations does not make any elements in SelectionResults
// invalid, then there is no need to update.
if (SelectionResults.Where(el => !el.IsValidObject).Count() == 0)
{
return;
}
// We are given a set of ElementIds, but because the elements
// have already been deleted from Revit, we can't get the
// corresponding GUID. Instead, we just go through the collection of
// elements and get the ones that are still valid.
var validEls = Selection.Where(el => el.IsValidObject).ToList();
UpdateSelection(validEls);
}
protected override void Updater_ElementsDeleted(
Document document, IEnumerable <ElementId> deleted)
{
// If an element is deleted, ensure all references which refer
// to that element are removed from the selection
if (!SelectionResults.Any() || !document.Equals(SelectionOwner))
{
return;
}
UpdateSelection(SelectionResults.Where(x => !deleted.Contains(x.ElementId)));
RaisePropertyChanged("SelectionResults");
RaisePropertyChanged("Text");
RequiresRecalc = true;
}
protected override void Updater_ElementsModified(IEnumerable <string> updated)
{
// If nothing has been updated, then return
if (!updated.Any())
{
return;
}
// If the updated list doesn't include any objects in the current selection
// then return;
if (!SelectionResults.Where(x => x.IsValidObject).Select(x => x.UniqueId).Any(updated.Contains))
{
return;
}
UpdateSelection(Selection);
}
protected override void Updater_ElementsDeleted(
Document document, IEnumerable <ElementId> deleted)
{
// If an element is deleted, ensure all references which refer
// to that element are removed from the selection
// If there is no selection, or the doc of the deleted
// elements is not this doc, or if there is nothing
// in the deleted set, then return
if (!SelectionResults.Any() ||
!document.Equals(SelectionOwner) ||
!deleted.Any() ||
!SelectionResults.Any(x => deleted.Contains(x.ElementId)))
{
return;
}
// The new selections is everything in the current selection
// that is not in the deleted collection as well
var newSelection = SelectionResults.Where(x => !deleted.Contains(x.ElementId));
UpdateSelection(newSelection);
}