Dear Visual FoxPro users

I want to to set a value property in a function.
For example: I want to write "test" in 10 boxes
with te names txtBox1,....., txtBox10

FOR nNr = 1 TO 10
cTxtbox = "thisform.txtBox" + nNr + ".value"
cTxtbox = "test"
endfor

This code isn't working the way I want, but how do I do?