private void GetDivision()
{
List <Division> divList = core.GetDivisions();
DivisionList = new ObservableCollection <Division>(divList.Select(x => new DivisionVM {
DivisionName = x.DivisionName
}).ToList());
FreeDivisions = new ObservableCollection <string>(divList.Select(x => new StringBuilder(x.DivisionName).ToString()).ToList());
FreeDivisions.Add("-");
}