The pattern to control the display of a zero value has 3-parts, separated by a 
semicolon. Note the 2-semicolons:

positive_format;negative_format;zero_format

To display nothing for a zero value, put nothing after the second semi-colon.

So this display filter will show positive and negative numbers, but display 
nothing for a zero value when the object doesn’t have focus:

###,##0;-###,##0;



> On Oct 3, 2017, at 5:59 PM, stardata.info via 4D_Tech <[email protected]> 
> wrote:
> 
> In one listbox, i need to display a number format so if the value is zero not 
> display anything.
> I try to insert the format ###.##0,##0 but not work properly.

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