Code:
Imports System.IO
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        Dim alltext() As String = System.IO.File.ReadAllLines("C:\Users\Parent\Documents\Visual Studio 2008\Projects\Members.txt")
        Dim lookfor As String = txtLogin.Text & ","

        If txtLogin.Text = "Admin" And txtPassword.Text = "DWADMIN" Then
            MsgBox("You are now successfuly logged in")
            Form2.Show()
            Me.Hide()
            'generic admin login for all staff
        End If

        For Each line As String In Filter(alltext, lookfor)
            If line.StartsWith(txtLogin.Text) Then
                MsgBox("You are now successfully logged in")
                Form3.Show()
                Me.Hide()
            End If
        Next      

        If txtLogin.Text = "" Or txtPassword.Text = "" Then
            MsgBox("Please enter Username/Password")
        End If
Right basically I'm having trouble using if and elseif statements. I cant use these three small pieces of code because I constantly get 'Else must be preceded by an If or ElseIf' but there is nowhere for me to put these without these erroring?