To-Do List Program

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

namespace ToDo_List
{
    public partial class Form1 : Form
    {
        LinkedList<String> todoList = new LinkedList<String>();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
        private void displayList()
        {
            ItemTextBox.Text = "";
            ToDoListBox.Items.Clear();

            foreach (string item in todoList)
            {
                ToDoListBox.Items.Add(item);
            }
        }

        private void AddFrontButton_Click(object sender, EventArgs e)
            {
                String newItem = ItemTextBox.Text;

                if (newItem.Length > 0)
                    {
                        todoList.AddFirst(newItem);

                        displayList();
                    }
          }

        private void AddBackButton_Click(object sender, EventArgs e)
        {
            String newItem = ItemTextBox.Text;
            if (newItem.Length > 0)
            {
                todoList.AddLast(newItem);

                displayList();
            }
        }

        private void ClearButton_Click(object sender, EventArgs e)
        {
            todoList.Clear();
            displayList();
        }

        private void RemoveButton_Click(object sender, EventArgs e)
        {
            string removeItem = ToDoListBox.Text;
            todoList.Remove(removeItem);

            displayList();
        }
     }
}