private void bindingSource()
{
txtKod.DataBindings.Clear();
txtStokAdi.DataBindings.Clear();
lblUretici.DataBindings.Clear();
lblMarka.DataBindings.Clear();
calcSatisFiyat1.DataBindings.Clear();
context.Barkodlar.Where(c => c.StokId == _entity.Id).Load();
txtKod.DataBindings.Add("Text", _entity, "StokKodu", false, DataSourceUpdateMode.OnPropertyChanged);
txtStokAdi.DataBindings.Add("Text", _entity, "StokAdi", false, DataSourceUpdateMode.OnPropertyChanged);
lblUretici.DataBindings.Add("Text", _entity, "Uretici", false, DataSourceUpdateMode.OnPropertyChanged);
lblMarka.DataBindings.Add("Text", _entity, "Marka", false, DataSourceUpdateMode.OnPropertyChanged);
calcSatisFiyat1.DataBindings.Add("Text", _entity, "SatisFiyati1", false,
DataSourceUpdateMode.OnPropertyChanged);
calcSatisFiyat1.DataBindings[0].FormattingEnabled = true;
calcSatisFiyat1.DataBindings[0].FormatString = "C2";
var r = stokDal.StokAdetler(context, _entity.Id);
if (r.HasValue)
{
lblMiktar.Text = r.Value.ToString("n2");
}
}