sorting in bar plot

[mathieu10599]

Hi, 

I created a bar plot but i can't sort it by the distance for some reasons. The expressions I used to create the plot are 

=Class(DistanceExpCab, 300/50)

and 

count(if(CodeTypeMission like 'Terrain',[IdDossier-WINDEV_TABLE-Table_Contenu-3.IdDossier]))/count(total if(CodeTypeMission like 'Terrain',[IdDossier-WINDEV_TABLE-Table_Contenu-3.IdDossier]))

for the dimension and measure respectively.

Thanks a lot