change the position of combobox

hi,
how i can change the position of combobox, manually????

i have a table:

1 - primero
2 - segundo
3 - tercero
4 - cuarto
5 - quinto


in the combobox is selected in the record "2" and the text is "segundo"
in the textbox write the text "3" , that instruction is for change the
combobox so that it appears the text "tercero"

Guus
Tue Aug 23 05:08:32 CDT 2005

You can set the selected index like this:

myComboBox.SelectedIndex = index;