On a stacked bar chart with values displayed (data label is set to value), I
do not want to display the value if its zero (no slice of data). Is there a
way to do this?

When I have approached different Excel users with this problem, they said
they go back to the spreadsheet and delete the zero's so they do not show up
on the chart.
I have a lot of entries and frequently use the spreadsheet so I want to
avoid having to manually delete the zeros for display purposes.

Thank you.