Hello Borislav

I must need to store the result of calculation in the table, because i must keep this value on them and if i changed the original controlsource of my columns that is "FI.U_VALHUM" to ((0+fi.u_nospeso-fi.u_VLDscemb)*fi.u_hum)/100, when i save my invoice my sql table loose this calculation value , the field FI.U_VALHUM = 0

Also if like i said by some line of code i can know the colunm index numbers, i can write
replace FI.U_VALHUM with QTT*100 for example, and also without changing controlsource.

in fact , my program use remote views to send values to sql server database.

I hope you understand.

thanks
Luis Santos