public IApplication Delete(string id) { IApplication app = ApplicationBLL.Get(id); if (app != null) { app = ApplicationBLL.Delete(app); } ICase c = CaseBLL.Get(id); if (c != null) { c = CaseBLL.Delete(c); } ICollection col = CollectionBLL.Get(id); if (col != null) { col = CollectionBLL.Delete(col); } return(app); }