private void DisplayLevel2List()
{
if (string.IsNullOrEmpty(Level2Original()))
{
// display an empty list
cboLevel2Manual.DataSource = null;
}
else
{
// display lists based on selected level 1
var level1 = SelectedValue(cboLevel1Manual);
if (level1 == null)
{
// display an empty list
cboLevel2Manual.DataSource = null;
}
else
{
var list = geoCoder.Level2GazetteerNames(
SelectedValue(cboLevel1Manual));
// format - add a leave blank option to the bottom of the list
list.Add(LeaveBlankText);
cboLevel2Manual.DataSource = list;
}
}
}