即使按下关闭按钮，程序仍在运行

Question

I have a 2 form program,the first form's button click will open the second form when clicked. I tried using a .close() to hide the first form, but that ended the whole program. Then I tried using a .hide(). Now, when I click the X button in the top right of the second form, the program closes, but is still running in the background. How do I get around this?

Answer 1

By default, a VB.NET application will exit when you close the startup form. If you're hiding the startup form and closing the second form then the startup form is still open, so the app won't exit.

If you want to be able to close the first form without exiting the application then go into the project properties and set the shutdown mode to when all forms close instead of when the startup form closes. That way, you can show your second form and then close your first form. Closing the second form will then exit the app.

Answer 2

Simply close the main Form from inside the second form's FormClosed event.

Sub Form2_FormClosed(sender As Object, e As FormClosedEventArgs)
    Form1.Close()
End Sub

Answer 3

您应该在第二个窗口的ShowDialog()函数之前使用Me.Close() 。

Answer 4

if you want the 1st form to be visible again, add a form1.show() to the form_closing event of the 2nd form

if you want the program to end, add an Application.Exit to the form_closing event of the 2nd form