Bottom line... you pass to .ToString the format you want ... NUB.Value.ToString("00.0") so 1 will come out "01.0" and 1.9 will come out "01.9"
or, if you need to sift the decimal out...
(NUB.Value * 10).ToString("000")

1 becomes "010" and 1.4 becomes "014"

-tg