error behavior copy row

[barney87]

hi, i've created a simple behavior for copy some column in a row of another table.

the behavior is correct but when i use it the valor of column is ,,,,,,,,,,,,,,,,,,,,(valor of column copied),,,,,,,,,,,,,,,,,,,,,,,

why are there the varios ,,,,,,,,,, ?

the valor of column is a reefer of another table             anagrafica pv[pv]

thanks a lot