winform如何关闭隐藏窗体

[cvily1]

form1是一个登陆窗体，我登陆成功后，form1隐藏，form2显示，当我关闭form2的时候，想同时关闭form1，请问如何实现？
form1只能是隐藏，不能在打开form2的时候关闭。

[maddemon]

Application.Exit();

[cvily1]

忘了这个了，做的太少了，谢谢啦

[chinaicm]

登录Form1调用Form2,Form2的构造函数需要把登录Form1传过去

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 form2 = new Form2(this);
            form2.Show();
            this.Hide();
        }

Form2代码

public partial class Form2 : Form
    {

        private Form logOnForm;

        public Form LogOnForm
        {
            get { return logOnForm; }            
        }

        public Form2(Form logOnForm)
        {
            InitializeComponent();
            this.logOnForm = logOnForm;
        }      

        private void Form2_FormClosed(object sender, FormClosedEventArgs e)
        {
            LogOnForm.Close();
        }
    }

[chinaicm]

晕
Application.Exit();就达到需求了,我想多了.