Move selected items from one listbox to another in C# winform

Question

I\'m trying to move selected items in list box1 to list box2, and vice versa. I have two buttons, >> and <<. When I select items in lis

Answer 1

private void buttonMoveToListBox1_Click(object sender, EventArgs e)
{
    if(listBox1.SelectedIndex != -1)
    {
        listBox2.Items.Add(listBox1.SelectedValue);
        listBox1.Items.Remove(listBox1.SelectedValue);
    }
}

private void buttonMoveToListBox2_Click(object sender, EventArgs e)
{
    if(listBox2.SelectedIndex != -1)
    {
        listBox1.Items.Add(listBox2.SelectedValue);
        listBox2.Items.Remove(listBox2.SelectedValue);
    }
}