By the way.....on a "latitude" field, i choose a custom validation for my float type with an handler "float_10_6" and a regular expression "^\d{0,4}(\.\d{0,6})?$".....

If i insert a "correct value", such as 38.111534, it's truncated in the last 2 digits and it appears as "38.1115".....what am i missing?

Thank you in advance for your strong support....

The problem is not about regex.
I quite sure you can submit the form without validator alert.

Look in your database :
The format sould be DECIMAL(8, 2)

DECIMAL(precision, scale)
pecision is the TOTAL number of digits.
scale is how many digits before the '.' (units)

I think this is your problem. Your regex seems fine.

Oh, excuse me I checked your project.

You are using floats.
Try to use decimal format and configure DECIMAL(8,2) in the poperties. (Precision/scale)

Thank you!!!! Works fine!!!! I appreciate a lot!!!