>Hello!
>im wondering about somethin. I have a clientID and it has a control source in a text box so when i save the client id gets saved in clients.clientid. im wondering is there a way i can send that to example books.clientid as well?like...give one text box 2 control sources?

No, but you can do replace command in the textbox.InteractiveChange event (or in Valid event - may be better)

replace ClientID with this.value in Books