private void ControlsToData()
{
if (_PXIBackplaneVoltages == null)
_PXIBackplaneVoltages = new PXIBackplaneVoltages();
_PXIBackplaneVoltages.minus_12 = (double) edtMinus12.Value;
_PXIBackplaneVoltages.plus_12 = (double) edtPlus12.Value;
_PXIBackplaneVoltages.plus_33 = (double) edtPlus3_3.Value;
_PXIBackplaneVoltages.plus_5 = (double) edtPlus5.Value;
}