public void DeleteMembersInConference(Guid confId)
{
if (confId != null)
{
List <Guid> listMemId = new List <Guid>();
var listMembersId = _conferRepository.GetMembersIdByConferenceId(confId);
if (listMembersId.Count() != 0)
{
foreach (var id in listMembersId)
{
var memberId = _conferRepository.GetConferenceIdByUserId(id);
listMemId.Add(memberId);
}
foreach (var i in listMemId)
{
_conferRepository.DeleteMembers(i);
}
}
}
}