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

namespace c5_5
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void 大寫字母BToolStripMenuItem_Click(object sender, EventArgs e)
        {
            richTextBox1.Text = "HAPPY NEW YEAR.";
            大寫字母BToolStripMenuItem.Enabled = false;
            小寫字母SToolStripMenuItem.Enabled = true;
        }

        private void 小寫字母SToolStripMenuItem_Click(object sender, EventArgs e)
        {
            richTextBox1.Text = "happy new year.";
            大寫字母BToolStripMenuItem.Enabled = true;
            小寫字母SToolStripMenuItem.Enabled = false;
        }

        private void 結束XToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if(MessageBox.Show("是否要關閉？","公告",MessageBoxButtons.YesNo,MessageBoxIcon.Question)== DialogResult.Yes)
            {
                Application.Exit();
            }
        }

        private void 中文字ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if(中文字ToolStripMenuItem.Checked==false)
            {
                richTextBox1.Text = "生日快樂";
                中文字ToolStripMenuItem.Checked = true;
            }
            else
            {
                richTextBox1.Text = "happy birthday";
                中文字ToolStripMenuItem.Checked = false;
            }
        }


    }
}