How to Get specific data from ObservableCollection item

Question

public ObservableCollection<EnumData> EnumDatas { get; set; }

  public ObservableCollection<EnumData> MaratialStatus{ get; set; }

 

 public ctor()

{

EnumDatas = unitOfWork.EnumDataRepository.All().ToObservableCollection();

 // how i get  specific data......

MaratialStatus = EnumDatas.Select(s => s.type == 1).;

}