private void SetControlStates()
{
edtResolution.Enabled = chkResolution.Checked;
edtConfidence.Enabled = chkConfidence.Checked;
cmbDatumType.Enabled = !_locked;
standardUnitControl.Enabled = !_locked;
edtNonStandardUnit.Enabled = !_locked;
qualifierComboBox.Enabled = !_locked;
}