private void btnFilter_Click(object sender, EventArgs e) { int id = (int)(cmbStateId.SelectedValue); if (cmbIsActive.SelectedIndex == 0) { dgvAddressBook.DataSource = AddressBO.FilteredAddressbook(id, true); } if (cmbIsActive.SelectedIndex == 1) { dgvAddressBook.DataSource = AddressBO.FilteredAddressbook(id, false); } }