Bow Creator: Select only number

i have a Bow Creator and i need to select only numeric flieds. I created a row filter with this pattern "^[0-9].*" but dosen't filter values like "12:30" (times, ecc).

I need to select only numeber (related to money), how i can do ?

Tanks for all,

If it's only numbers, then ^\d+$ should do it. If there are delimiters, try something like ^\d[\.,\d]*$.