Dear Experts

There is text1 and 10 commandbuttons on form.
Text1 is numeric type and commandbuttons are with caption from 0 to 9 as follows

command1 0
command2 1
command3 2 and so on.

I want to enter data in text1 through commandbuttons for example if I want to enter data 210 then I should press command3, command2 and then command1 but what command should I apply on every commandbutton.

Please help