VB.NET - Working with Multiple Forms - vb.net

Question

I'm trying to make a login window and a main window. The problem is when I close the login form and show the main window, the whole program stops.
The login form:
Imports System.IO
Imports System.Text
Imports System.Net
Public Class frmLogin
Dim address As String = "http://puu.sh/jKJ**Zq/d613de****29.txt"
Dim client As WebClient = New WebClient()
Private Sub frmLogin_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'frmMain.Close()
End Sub
Private Sub frmLogin_Close(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.FormClosed
frmMain.Show()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If attemptLogin() Then
MsgBox("Login Successful")
Me.Close()
'frmMain.Show()
Else
MsgBox("Username or password is incorrect")
End If
End Sub
Private Function attemptLogin()
Dim reader As StreamReader = New StreamReader(client.OpenRead(address))
Dim line As String
Dim username As String
Dim password As String
line = reader.ReadLine()
Do While Not line Is Nothing
username = line.Split(":")(0)
password = line.Split(":")(1)
If (username = TextBox1.Text And password = TextBox2.Text) Then
Return True
End If
line = reader.ReadLine()
Loop
reader.Close()
client.Dispose()
Return False
End Function
Private Function Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim client As WebClient = New WebClient()
Dim reader As StreamReader = New StreamReader(client.OpenRead(address))
Dim line As String
line = reader.ReadLine
Do While Not line Is Nothing
line = reader.ReadLine()
Loop
reader.Close()
Dim writer As StreamWriter = New StreamWriter(client.OpenRead(address))
writer.Write(TextBox1.Text & ":" & TextBox2.Text)
writer.Close()
client.Dispose()
Return False
End Function
End Class
The Main Window:
Public Class frmMain
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.Load
'frmMain.Close()
End Sub
Private Sub frmMain_closed(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.FormClosing
End Sub
End Class
I am fairly new to VB.NET so sorry about the lack of knowledge/ugly coding. I'm used to programming GUIs in Java.

Answer 1

You need to set your 'Shutdown mode' to 'When last form closes'.
You can find this setting by going to My project and then clicking on Application (the first tab).
You can then find the setting at the bottom.