Thanks ChrisW67,

I thought I would try the overriding idea and I have failed to get it to work.

Qt Code: 
  1. QString SpinBoxDelegate::displayText(const QVariant &value, const QLocale &locale) const
  2. {
  3. 	if (value.userType() == QVariant::Double )
  4. 	{
  5. 		return locale.toString(value.toDouble(), 'f', 1);
  6. 	}
  7. 	else
  8. 	{
  9. 		return QStyledItemDelegate::displayText( value, locale);
  10.  
  11. 	}
  12. };
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This doesn't compile with this error message:

error: cannot call member function 'virtual QString QStyledItemDelegate::displayText(const QVariant&, const QLocale&) const' without object
I didn't think an object was needed in this case...
All the examples I have found seem to do it this way so any suggestions on where I have gone wrong would be appreciated?

Thanks, B1.