private void removeCompraButton_Click(object sender, RoutedEventArgs e)
{
string delCompra = delCpfTxtBox.Text;
int index = Convert.ToInt32(delCompra);
CompraController cTrl = new CompraController();
CompraModel compra = new CompraModel();
compra = cTrl.findInfo(index);
cTrl.deleteInfo(compra);
var db = new Contexto();
this.CompraDataGrid.ItemsSource = db.Compra.ToList();
}
