private void DataToControls()
{
if (_vxiTriggerLines == null)
return;
chkSource.Checked = _vxiTriggerLines.sourceSpecified;
chkSense.Checked = _vxiTriggerLines.senseSpecified;
edtSense.Value = _vxiTriggerLines.sense;
edtSource.Value = _vxiTriggerLines.source;
}