How to send email with attachment in VB.NET?

Public Sub SendMailOneAttachment(ByVal From As String, _
      ByVal sendTo As String, ByVal Subject As String, _
      ByVal Body As String, _
      Optional ByVal AttachmentFile As String = "", _
      Optional ByVal CC As String = "", _
      Optional ByVal BCC As String = "", _
      Optional ByVal SMTPServer As String = "")
 
        Dim myMessage As MailMessage
 
        Try
            myMessage = New MailMessage()
            With myMessage
                .To = sendTo
                .From = From
                .Subject = Subject
                .Body = Body
                .BodyFormat = MailFormat.Text
                'CAN USER MAILFORMAT.HTML if you prefer
 
                If CC <> "" Then .Cc = CC
                If BCC <> "" Then .Bcc = ""
 
                If FileExists(AttachmentFile) Then _
                 .Attachments.Add(AttachmentFile)
 
            End With
 
            If SMTPServer <> "" Then _
               SmtpMail.SmtpServer = SMTPServer
            SmtpMail.Send(myMessage)
 
        Catch myexp As Exception
            Throw myexp
        End Try
 
    End Sub
 
Public Sub SendMailMultipleAttachments(ByVal From As String,_
    ByVal sendTo As String, ByVal Subject As String, _
    ByVal Body As String, _
    Optional ByVal AttachmentFiles As ArrayList = Nothing, _
    Optional ByVal CC As String = "", _
    Optional ByVal BCC As String = "", _
    Optional ByVal SMTPServer As String = "")
 
        Dim myMessage As MailMessage
        Dim i, iCnt As Integer
 
        Try
            myMessage = New MailMessage()
            With myMessage
                .To = sendTo
                .From = From
                .Subject = Subject
                .Body = Body
                .BodyFormat = MailFormat.Text
                'CAN USER MAILFORMAT.HTML if you prefer
 
                If CC <> "" Then .Cc = CC
                If BCC <> "" Then .Bcc = ""
 
                If Not AttachmentFiles Is Nothing Then
                    iCnt = AttachmentFiles.Count - 1
                    For i = 0 To iCnt
                        If FileExists(AttachmentFiles(i)) Then _
                          .Attachments.Add(AttachmentFiles(i))
                    Next
 
                End If
 
            End With
 
            If SMTPServer <> "" Then _
              SmtpMail.SmtpServer = SMTPServer
            SmtpMail.Send(myMessage)
 
 
        Catch myexp As Exception
            Throw myexp
        End Try
    End Sub
 
    Private Function FileExists(ByVal FileFullPath As String) _
     As Boolean
        If Trim(FileFullPath) = "" Then Return False
 
        Dim f As New IO.FileInfo(FileFullPath)
        Return f.Exists
 
    End Function