C# Ending process on Form2 close

Question

I'm trying to work with multiple forms, what I want is change the way the form is depending on the selected index of a combobox, the only way I could think of is hide form1 and show form2, but the problem is when you close form2, the process does not end...I tried the code below

private void Form2_FormClosing(object sender, FormClosedEventArgs e)
    {
        foreach (var process in Process.GetProcessesByName("Process Name.exe"))
        {
            process.Kill();
        }
    }

if there isn't, is there a way the form can change on combobox selected index?

Answer 1

Try Application.Exit();

It exits your entire application and closes all your forms and threads.

Answer 2

Simply pass an instance of Form1 to the constructor of Form2, keep a reference to it in a form1 member

public class Form2 : Form{
    private Form _form1;

    public Form2(Form form1):this()
    {
        _form1 = form1;
        InitializeComponent();
    }
}

later you can simply use that reference :

_form1.Close();

This is a cleaner way to do it. Other mechanisms are also ok, like implementing an eventhandler on form1 for an event in form2.

based on your pastebin code change this:

Form2 HeadquarterForm = new Form2(this);

you also only need the closed eventhandler and call close on the _form1 only once. So you don't really need the closing event handler.

Answer 3

The process is still running because form1 is still alive but hidden.

Try using Environmental.exit() to kill the process

Answer 4

Looking at your code in pastebin. Problem is, you're not passing Form1 in constructor of your Form2 when creating it. Change the part of your switch-case (4) to:

Form2 HeadquarterForm = new Form2(this);