private void AddContractorCmd(object model)
{
var contractor = model as Contractor;
contractor.CreateDate = DateTime.Now;
if (string.IsNullOrWhiteSpace(contractor.ContractorName))
{
return;
}
_repositoryManager.AddContractor(contractor);
ContractorToAdd = new Contractor();
var con = _repositoryManager.GetContractors();
Contractors = new ObservableCollection <Contractor>(con);
ContractorList = ProcessContractorList(con);
SelectedContractor = ContractorList.First();
}