Change Language ContextMenuStrip in control c#

private void Form1_Load(object sender, EventArgs e)
        {
            ContextMenuStrip contextMenu = new ContextMenuStrip();
            //adding menu item
            contextMenu.Items.Add("Item 1");
            //adding second menu item with an event handler attached
            contextMenu.Items.Add("Change language");
            contextMenu.Click += contextMenu_Click;

            txtTest.ContextMenuStrip = contextMenu;
        }

        void contextMenu_Click(object sender, EventArgs e)
        {
            //do your stuff here
            MessageBox.Show("You clicked on change language menu item");
        }