Hi Julie,
If the reason you want to go for a DropDownList style is to prevent invalid entry,then you can handle the TextChanged event of ComboBoxAdv and do a validation as shown below.Here it clears the value if it is not there in the list.
private void comboBoxAdv1_TextChanged(object sender, System.EventArgs e)
{
if(-1==this.comboBoxAdv1.FindStringExact (this.comboBoxAdv1.TextBox.Text,true))
{
this.comboBoxAdv1.TextBox.Clear ();
}
}
Kindly let us know if you need further assistance.
Download SampleBest Regards,
Anu.