C#-窗体之自制记事本

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

        private void button1_Click(object sender, EventArgs e)
        {
            string name = textName.Text.Trim();
            string pwd = textPwd.Text;
            if (name == "admin" && pwd == "admin")
            {
                MessageBox.Show("欢迎进入记事本");
                btnWordWrap.Visible = true;
                btnSave.Visible = true;
                textBoxBig.Visible = true;

                textName.Visible = false;
                label1.Visible = false;
                label2.Visible = false;
                button2.Visible = false;
                textPwd.Visible = false;
                button1.Visible = false;
            }
            else//登录失败
            {
                MessageBox.Show("用户名或密码错误请重新输入");
                textName.Clear();
                textPwd.Clear();
                //让文本框获得焦点
                textName.Focus();
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            textName.Clear();
            textPwd.Clear();
            //让文本框获得焦点
            textName.Focus();
        }
        /// <summary>
        /// 自动换行
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnWordWrap_Click(object sender, EventArgs e)
        {
            //判断是否是自动换行  是的话就关闭不是打开
            
            if (btnWordWrap.Text == "自动换行")
            {
                textBoxBig.WordWrap = true;
                btnWordWrap.Text = "取消自动换行";
            }
            else if(btnWordWrap.Text == "取消自动换行")
            {
                textBoxBig.WordWrap = false;
                btnWordWrap.Text = "自动换行";
            }
        }
        /// <summary>
        /// 保存数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnSave_Click(object sender, EventArgs e)
        {
            using (FileStream fsWrite = new FileStream(@"C:\Users\H0772690\Desktop\newnewnew.txt",FileMode.OpenOrCreate,FileAccess.Write))
            {
                string str = textBoxBig.Text.Trim();//拿到用户的内容
                byte[] butffer = System.Text.Encoding.Default.GetBytes(str);
                fsWrite.Write(butffer,0,butffer.Length);
                MessageBox.Show("保存成功");
            }
        }
    }