I have a list box with an item called "All", when user select "All" I highlight all items
in the list box :
if (country.Equals("All")) // to select All countries
// listCountry.SelectedItems = listCountry.Items.Count;
for (int i = 0; i < this.listCountry.Items.Count; i++)
listCountry.SelectedIndex = i;
However, when user select again other item, all previous highlighted should be
no highlted. How can I do it?