button_click事件后如何关闭Winform窗口

Question

I have program in Winfroms. I use a lot of check boxes to pick my options. And there is main button1 to click after options choosing. Everything works, I click on it, everything is generated right, but my winforms window still stays and doesn't go away. I need to click on exit mark. Is it possible to run and exit program after button1 click?

My code of button click event:

private void button1_Click(object sender, EventArgs e)
{
    var header = File.ReadAllText(@"dir/header");
    var footer = File.ReadAllText(@"dir/footer");
    var sb = new StringBuilder();
    sb.AppendLine(header);
    if (checkBox1.CheckState == CheckState.Checked) sb.AppendLine(@"\include{chap2}");
    if (checkBox2.CheckState == CheckState.Checked) sb.AppendLine(@"\include{chap3}");
    sb.AppendLine(footer);
    File.WriteAllText(@"dir/final", sb.ToString());

I found tutorials about this problem, but they all have the same problem. You need to click the exit mark and only then you can get out of winform window.

Answer 1

1. If the button is in the main form you can simply use Close() to exit the program

    this.Close(); 

2. If you're going to exit the program from another form, you have to use Application.Exit()

3. There's another way of closing the application called Environment.Exit ; something like a force close which as MSDN says:

Terminates this process and returns an exit code to the operating system.