Any() 当对象为空时抛出异常，如何返回空？

Question

I have the following query in linq,

List<SolicitudSeccion> solicitudesSeccionEliminar = solicitudBD.SolicitudSeccion?.Where(bd => 
!solicitudEdit.SolicitudSeccion.Any(ed => bd.IdSolicitudSeccion == ed.IdSolicitudSeccion))?.ToList();

I have solved when "solicitudBD.SolicitudSeccion" is null so that .Where() does not error, putting a "?.Where()", the case is that solicitudEdit.SolicitudSeccion is null .Any() throw exception and I can't put a "?.Any()" to avoid the exception

Any ideas?

Answer 1

Handle the null object with ?.Any(..) == false

List<SolicitudSeccion> solicitudesSeccionEliminar = solicitudBD
  .SolicitudSeccion
  ?.Where(bd => 
    solicitudEdit
    .SolicitudSeccion
    ?.Any(ed => bd.IdSolicitudSeccion == ed.IdSolicitudSeccion) == false
  )?.ToList();