c#登陆窗体制作

1、创建一窗体frmWelcome(欢迎窗体)，并增加timer

　　　private void timer1_Tick(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.OK;
            timer1.Enabled = false;
            timer1.Stop();
            this.Close();
        }       

        private void frmWelcome_Load(object sender, EventArgs e)
        {
            timer1.Interval = 2000;
            timer1.Enabled = true;