Q:

C#/.NET: how do I close the application from a parent window?

I have a Windows application that has 2 Forms. From one form I am opening a 2nd form.
When opening the 2nd form I am hiding 1 form and in the second foem I am starting a thread.
Now I want to close the application.
But I was not able to do that.
On my 1st form I have tried:
Form1 frm = new Form1(this, tcpClient);
frm.ShowDialog();
this.Close();
Application.Exit();

But the application is not ending. It still running.
Any idea how to stop that?
EDIT (CODE Included):
On 1st form's button click event:
this.Hide();
Form1 frm = new Form1(this, tcpClient, serverMsg);
frm.Show();

On 1st form's button FormClosed event:
MessageBox.Show("Before");
Application.Exit();

On 2nd form's load event I am calling a method startThread(); on this method
ilThread = new Thread(incomingListener);
ilThread.IsBackground = true;
ilThread.Start();

A:

When you do frm.ShowDialog() you're opening a modal window. The code will stop at that point until you specify a DialogResult on frm. I.e. frm.DialogResult = DialogResult.Ok;.
If you use frm.Show() that might work for you.

