public void CarregarPreparos()
{
DataTable rsPreparo = new DataTable();
rsPreparo = NPreparo.Mostrar();
//Carrega o combobox Insumos, dentro da Tab
cmbPreparos.DataSource = null;
cmbPreparos.Items.Clear();
cmbPreparos.DataSource = rsPreparo;
cmbPreparos.DisplayMember = "Nome";
cmbPreparos.ValueMember = "IdInsumo";
cmbPreparos.SelectedItem = null;
}
