Showing a Context Menu for an item in a ListView

private void listView1_MouseClick(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Right)
    {
        var focusedItem = listView1.FocusedItem;
        if (focusedItem != null && focusedItem.Bounds.Contains(e.Location))
        {
            contextMenuStrip1.Show(Cursor.Position);
        }
    } 
}

You can put connected client information in the contextMenuStrip1. and when you right click on a item, you can show the information from that contextMenuStrip1.