How do I display the button function from my drinkform to orderform. I am really frustrated listbox

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Rio
{
    public partial class OrdersForm : Form
    {
        public OrdersForm()
        {
            InitializeComponent();
        }

        public void UpdateOrderList(List<string> orders)
        {
            if (InvokeRequired)
            {
                Invoke(new Action(() => UpdateOrderList(orders)));
            }
            else
            {
                listBox1.Items.Clear();
                foreach (string order in orders)
                {
                    listBox1.Items.Add(order);
                }
            }
        }
        private void Snacksbutt_Click(object sender, EventArgs e)
        {
            display.Controls.Clear();
            Fastfood sform = new Fastfood
            {
                TopLevel = false,
                FormBorderStyle = FormBorderStyle.None,
                Dock = DockStyle.Fill
            };

            display.Controls.Add(sform);
            sform.Show();
        }
        private void Mealbutt_Click(object sender, EventArgs e)
        {
            display.Controls.Clear();
            Mealform mform = new Mealform
            {
                TopLevel = false,
                FormBorderStyle = FormBorderStyle.None,
                Dock = DockStyle.Fill
            };

            display.Controls.Add(mform);
            mform.Show();
        }
        private void Drinksbutt_Click(object sender, EventArgs e)
        {
            Drinkform dform = new Drinkform(this)
            {
                TopLevel = false,
                FormBorderStyle = FormBorderStyle.None,
                Dock = DockStyle.Fill
            };
            display.Controls.Add(dform);
            dform.Show();
        }

        private void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Rio
{
    public partial class Drinkform : Form
    {
        private readonly OrdersForm _ordersForm;
        private readonly List<string> _selectedDrinks = new List<string>();

        public Drinkform(OrdersForm ordersForm)
        {
            InitializeComponent();
            _ordersForm = ordersForm;
            SetupDrinkButtons();
        }
        private void AddDrink(Button button)
        {
            if (button != null && !_selectedDrinks.Contains(button.Text))
            {
                _selectedDrinks.Add(button.Text);
                MessageBox.Show($"{button.Text} added.");
            }
        }

        private void Button11_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button7_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button3_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button6_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button12_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button30_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button5_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button4_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button2_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button13_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button14_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button15_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }
        private void Button17_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button8_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button9_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button10_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button18_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button19_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button20_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button21_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button22_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button23_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button24_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button25_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button26_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button27_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button28_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }

        private void Button29_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }


        private void Button16_Click(object sender, EventArgs e)
        {
            AddDrink(sender as Button);
        }
        private void SetupDrinkButtons()
        {
            foreach (Control control in Controls)
            {
                if (control is Button button)
                {
                    button.Click += (sender, e) => AddDrink(sender as Button);
                }
            }
        }
        
        private void ButtonSubmit_Click(object sender, EventArgs e)
        {
            if (_ordersForm != null)
            {
                _ordersForm.UpdateOrderList(_selectedDrinks);
                MessageBox.Show("Drinks sent to Orders Form.");
            }
        }
        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            SetupDrinkButtons();
        }
    }
}