ms access + combo box on click - value to textbox

i am using access 2010, and would like to have a combo box and text field on a form, i would ilke when the user selects a value from the combo box, it adds it to the value of the text box, so the user can add several values, the value would be seperated by commas. I am thinking of using a macro - with an after update event, but not sure how to append to the value already in the text box.
dkilbyAsked:
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Rey Obrero (Capricorn1)Connect With a Mentor Commented:
use the afterupdate event of the combo

private sub combo0_afterupdate()
dim str as string
str=str & me.combo0

me.text1=me.text1 & str & ","

end sub
0
 
Rey Obrero (Capricorn1)Commented:
or this one

private sub combo0_afterupdate()
dim str as string
str=str & me.combo0

if me.text1 & ""="" then
     me.text1=str
     else
     me.text1=me.text1 & "," & str
end if
end sub
0
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