Question

Im using c# .net windows form application. I have two comboboxes A and B .I have pouplated A with some values. Now if i select any one value from A, I should be able to populate B with all the items of A except the selected item .

Answer 1

maybe you want this :

    for (int i = 0; i < comboBox1.Items.Count;i++)
    {
        if ((comboBox1.SelectedIndex)!=i)
        {
            comboBox2.Items.Add(comboBox2.Items[i]);
        }
    }

you have to clear comboBox2 before adding new items