[Tutorial] Email Sender - Attachments

Imports System.Net.Mail
Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

'Used to select file for attachment
OpenFileDialog1.ShowDialog()
TextBox4.Text = OpenFileDialog1.FileName
End Sub

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


'Gets the user settings for email server
Button2.Enabled = False
Dim froma AsString
Dim Serv AsString
Dim user AsString
Dim pword AsString
froma = Convert.ToString(My.Settings.From)
Serv = Convert.ToString(My.Settings.server)
user = Convert.ToString(My.Settings.uname)
pword = Convert.ToString(My.Settings.pass)

'Sends the email and attachment
Dim from As New MailAddress(froma)
Dim [to] As New MailAddress(Me.TextBox1.Text)
Dim theMailMessage As New MailMessage(from, [to])
Dim filez = TextBox4.Text
theMailMessage.Body = Me.TextBox3.Text
If CheckBox1.Checked Then
theMailMessage.Attachments.Add(New Attachment(filez))
End If
theMailMessage.Subject = TextBox2.Text
Dim theClient As New SmtpClient(Serv)
theClient.UseDefaultCredentials = False
Dim theCredential As New System.Net.NetworkCredential(user, pword)
theClient.Credentials = theCredential
theClient.EnableSsl = True
Try
theClient.Send(theMailMessage)
Catch wex As Net.WebException
MessageBox.Show("Could not send email...check your settings.")
End Try
Button2.Enabled = True
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

'Opens the settings form
Dim theSecondForm As New Form2()
theSecondForm.ShowDialog()
End Sub

Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged

'Controls attachment box
If CheckBox1.Checked Then
Button1.Enabled = True
TextBox4.Enabled = True
Else
Button1.Enabled = False
TextBox4.Enabled = False
End If
End Sub
End Class

Public Class Form2

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

'Saves settings and closes form
My.Settings.From = TextBox1.Text
My.Settings.server = TextBox2.Text
My.Settings.uname = TextBox3.Text
My.Settings.pass = TextBox4.Text
My.Settings.Save()
Me.Close()
End Sub

Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

'Loads the settings into the form when it is opened
Dim froma AsString
Dim Serv AsString
Dim user AsString
Dim pword AsString
froma = Convert.ToString(My.Settings.From)
TextBox1.Text = froma
Serv = Convert.ToString(My.Settings.server)
TextBox2.Text = Serv
user = Convert.ToString(My.Settings.uname)
TextBox3.Text = user
pword = Convert.ToString(My.Settings.pass)
TextBox4.Text = pword
End Sub
End Class