Edit a Navision table after finding a record in it

Hi,

May any body help me on how can I edit a field in a navision table after finding the value of another field same record(Raw).

Below is the code:

"th transfer shpiment table".RESET;

"th transfer shpiment table".SETRANGE("th transfer shpiment table"."Web Order No.","WONo.");

IF "th transfer shpiment table".FINDFIRST THEN

??????????

ELSE

Here, I found a record in the table.

But I don't know how can I edit another cell/field in that table of the same raw if the value I searched exists.

Regards,

Teeyech