Hi,
You should use \. See Limit decimal digits in decimal question - #6 by Xiphware
Your regex would allow e.g. as entry:
. (dot only) , 0. , .0 , 1.0, Perhaps, also entry 1.00 and 1.0000 (decimal type). Please, also test things like 0a0 and a and ,1
Which type has your variable?
