I am using the code below to generate a PDF and save it to a location. Would it be possible to have this sent out as an email with the generated PDF attached? I am assuming the Email coding would need to be done in HTML? because it will be on a webserver. Is this possible?
Dim Doc1 As New Document
Dim path As String = "\\Server\Folder" + Session("Username") + "\"
If (Not System.IO.Directory.Exists(path)) Then
System.IO.Directory.CreateDirectory(path)
End If
Dim myUniqueFileName = String.Format("{0}.pdf", random)
Dim pdfWrite As PdfWriter = PdfWriter.GetInstance(Doc1, New FileStream(path & myUniqueFileName, FileMode.Create))
' Dim ev As New itsEvents
' pdfWrite.PageEvent = ev
Doc1.Open()
Dim test As String
test = Session("PDF")
Dim imagepath As String = Server.MapPath(".") & "/images/Header.png"
Dim image As iTextSharp.text.Image = iTextSharp.text.Image.GetInstance(imagepath)
image.ScalePercent(70.0F)
' image.SetAbsolutePosition(36.0F, 36.0F)
Doc1.Add(image)
Doc1.Add(New Paragraph(test))
Doc1.Close()
Try this:
' Create the mail message
Dim mail As New MailMessage()
' Set the addresses
mail.From = New MailAddress("me#mycompany.com")
mail.To.Add("you#yourcompany.com")
' Set the content
mail.Subject = "This is an email"
mail.Body = "this content is in the body"
' Get some binary data
Dim data As Byte() = GetData()
' Save the data to a memory stream
Dim ms As New MemoryStream(data)
' Create the attachment from a stream. Be sure to name the data with a file and
' media type that is respective of the data
mail.Attachments.Add(New Attachment(ms, "example.txt", "text/plain"))
' Send the message
Dim smtp As New SmtpClient("127.0.0.1")
smtp.Send(mail)
Function GetData() As Byte()
' This is where you will load your data from disk or database, etc.
Dim s As String = "this is some text"
Dim data As Byte() = Encoding.ASCII.GetBytes(s)
Return data
End Function 'GetData
Related
I have been breaking my head for the last two days and can't get this to work. I have a report, which I am exporting to Excel and saving on the server file directory. That part works perfectly, I can see the file, and open it, all good. The issue relies on when I try to send it to the browser for download from the server. It does not download anything, I do see the Response Header with all the info on the browser but nothing happens.
Here's one of my many tries
Private Sub dxgvPOAll_ToolbarItemClick(source As Object, e As ASPxGridViewToolbarItemClickEventArgs) Handles dxgvPOAll.ToolbarItemClick
Select Case e.Item.Name
Case "ExportAll"
Using report As DevExpress.XtraReports.UI.XtraReport = New POs_Dashboard_Report()
Using ms As New System.IO.MemoryStream()
report.Name = "Backorder Tickets"
report.ExportOptions.PrintPreview.SaveMode = DevExpress.XtraPrinting.SaveMode.UsingSaveFileDialog
Dim xlsxExportOptions As New DevExpress.XtraPrinting.XlsxExportOptions() With {.ExportMode = DevExpress.XtraPrinting.XlsxExportMode.SingleFile, .ShowGridLines = True, .FitToPrintedPageHeight = True}
Dim folderPath As String = "~/Account/TemporaryFiles/" & Utilities.RetrieveEmployeeNumber() & "/" & Guid.NewGuid.ToString & "/"
Dim serverPath As String = Server.MapPath(folderPath)
Dim xlsxExportFilePath As String = serverPath & report.Name & ".xlsx"
Dim folderInf As New DirectoryInfo(serverPath)
If Not folderInf.Exists Then folderInf.Create()
report.ExportToXlsx(xlsxExportFilePath, xlsxExportOptions)
Try
Dim objRequest As FileWebRequest = CType(WebRequest.Create(xlsxExportFilePath), FileWebRequest)
Dim objResponse As FileWebResponse = CType(objRequest.GetResponse(), FileWebResponse)
Dim bufferSize As Integer = 1
Response.Clear()
Response.ClearHeaders()
Response.ClearContent()
Response.AppendHeader("Content-Disposition:", "attachment; filename=" & xlsxExportFilePath)
Response.AppendHeader("Content-Length", objResponse.ContentLength.ToString())
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
Dim byteBuffer As Byte() = New Byte(bufferSize + 1 - 1) {}
Dim memStrm As MemoryStream = New MemoryStream(byteBuffer, True)
Dim strm As Stream = objRequest.GetResponse().GetResponseStream()
Dim bytes As Byte() = New Byte(bufferSize + 1 - 1) {}
While strm.Read(byteBuffer, 0, byteBuffer.Length) > 0
Response.BinaryWrite(memStrm.ToArray())
Response.Flush()
End While
HttpContext.Current.Response.Flush()
HttpContext.Current.Response.SuppressContent = True
HttpContext.Current.ApplicationInstance.CompleteRequest()
Catch e1 As ThreadAbortException
Catch ex As Exception
End Try
End Using
End Using
End Select
End Sub
Here's what I see on the browser's Response-Header:
I have a windows service written in VB.Net that downloads emails into MimeMessage objects, removes their attachments, and then writes the remains of the email to a SQL Server database. A separate ASP.Net application (using VB.Net) reads the email back into a MimeMessage object and returns it to the user upon request.
Something happens during this process that causes strange characters to appear in the output.
This question (Content encoding using MimeKit/MailKit) seemed promising, but changing the character encoding from ASCII to UTF8 etc didn't solve it.
Here’s the code that saves the email to the database:
Sub ImportEmail(exConnectionString As String)
Dim oClient As New Pop3Client()
' … email connection code removed …
Dim message = oClient.GetMessage(0)
Dim strippedMessage As MimeMessage = message
' … code to remove attachments removed …
Dim mem As New MemoryStream
strippedMessage.WriteTo(mem)
Dim bytes = mem.ToArray
Dim con As New SqlConnection(exConnectionString)
con.Open()
Dim com As New SqlCommand("INSERT INTO Emails (Body) VALUES (#RawDocument)", con)
com.CommandType = CommandType.Text
com.Parameters.AddWithValue("#RawDocument", bytes)
com.ExecuteNonQuery()
con.Close()
End Sub
And here’s the ASP.Net code to read it back to the user:
Private Sub OutputEmail(exConnectionString As String)
Dim BlobString As String = ""
Dim Sql As String = "SELECT Body FROM Emails WHERE Id = #id"
Dim com As New SqlClient.SqlCommand(Sql)
com.CommandType = CommandType.Text
com.Parameters.AddWithValue("#id", ViewState("email_id"))
Dim con As New SqlConnection(exConnectionString)
con.Open()
com.Connection = con
Dim da As New SqlClient.SqlDataAdapter(com)
Dim dt As New DataTable()
da.Fill(dt)
con.Close()
If dt.Rows.Count > 0 Then
Dim Row = dt.Rows(0)
BlobString = Row(0).ToString()
Dim MemStream As MemoryStream = GetMemoryStreamFromASCIIEncodedString(BlobString)
Dim message As MimeMessage = MimeMessage.Load(MemStream)
BodyBuilder.HtmlBody = message.HtmlBody
BodyBuilder.TextBody = message.TextBody
message.Body = BodyBuilder.ToMessageBody()
Response.ContentType = "message/rfc822"
Response.AddHeader("Content-Disposition", "attachment;filename=""" & Left(message.Subject, 35) & ".eml""")
Response.Write(message)
Response.End()
End If
End Sub
Private Function GetMemoryStreamFromASCIIEncodedString(ByVal BlobString As String) As MemoryStream
Dim BlobStream As Byte() = Encoding.ASCII.GetBytes(BlobString) ' **
Dim MemStream As MemoryStream = New MemoryStream()
MemStream.Write(BlobStream, 0, BlobStream.Length)
MemStream.Position = 0
Return MemStream
End Function
For example, let’s say the text below appears in the original email:
“So long and thanks for all the fish” (fancy quotes)
When read back, it appears as follows:
†So long and thanks for all the fishâ€
Other character replacements are as follows:
– (long dash) becomes –
• (bullets) become •
The problem is with the following snippet:
If dt.Rows.Count > 0 Then
Dim Row = dt.Rows(0)
BlobString = Row(0).ToString() ' <-- the ToString() is the problem
Dim MemStream As MemoryStream = GetMemoryStreamFromASCIIEncodedString(BlobString)
Dim message As MimeMessage = MimeMessage.Load(MemStream)
To fix the data corruption, what you need to do is this:
If dt.Rows.Count > 0 Then
Dim Row = dt.Rows(0)
Dim BlobString as Byte() = Row(0)
Dim MemStream As MemoryStream = new MemoryStream (BlobString, False)
Dim message As MimeMessage = MimeMessage.Load(MemStream)
You can also get rid of your GetMemoryStreamFromASCIIEncodedString function.
(Note: I don't know VB.NET, so I'm just guessing at the syntax, but it should be pretty close to being right)
Try
'connection string
Dim dbpath As String = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().CodeBase)
dbpath = New Uri(dbpath).LocalPath
Dim my_connection As String = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=D:\DataBase\KhandagramPS.mdb"
Dim userTables As DataTable = Nothing
Dim connection As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection()
Dim DR As OleDbDataReader
'Dim source As String
'query string
Dim my_query As String = "SELECT sl_no,f_name,dob,sex,add,reg,[class],a_date,a_per,r_a_per,f_status,[name],photo,document FROM " & TextBox2.Text & " where sl_no=" & TextBox3.Text & " ;"
'create a connection
Dim my_dbConnection As New OleDbConnection(my_connection)
my_dbConnection.Open()
'create a command
Dim my_Command As New OleDbCommand(my_query, my_dbConnection)
DR = my_Command.ExecuteReader()
While (DR.Read())
txtslno.Text = (DR(0).ToString())
txtfname.Text = (DR(1).ToString())
Date1.Text = (DR(2).ToString())
comsex.Text = (DR(3).ToString())
txtadd.Text = (DR(4).ToString())
txtreg.Text = (DR(5).ToString())
comclass.Text = (DR(6).ToString())
Date2.Text = (DR(7).ToString())
txtaper.Text = (DR(8).ToString())
txtraper.Text = (DR(9).ToString())
txtfstatus.Text = (DR(10).ToString())
txtname.Text = (DR(11).ToString())
Dim ImageBuffer = CType(DR(12), Byte())
Dim imgStrm As New MemoryStream(ImageBuffer, True)
imgStrm.Write(ImageBuffer, 0, ImageBuffer.Length)
Dim img As Image = Image.FromStream(imgStrm)
PictureBox1.Image = img
End While
'close connection
my_dbConnection.Close()
Catch ex As Exception
MsgBox(ex.Message)
End Try
I suspect some error in your Byte-Array to Image conversion. Make sure that your Byte-Array is not messed up. Use this function instead.
Private Function getImage(imageBuffer as Byte())
Using ms as new IO.MemoryStream(imageBuffer)
Dim img = ImageIO.FromStream(ms)
Return img
End Using
End Function
my 2 cents: you shouldn't store images in an mdb file (unless things have changed a lot in the past few years). store images in a separate directory and store the file paths in the mdb so the image can be found when needed.
I am using DevExpress tools, specifically the FileManager which has a 'SelectedFiles' property which returns all the data needed to (add,insert,delete,retrieve, modify the record). However I can not figure out how to use the selectedfiles as a MailMessage.Attachment. The code below works to send the email, I've changed the credentials and host values for security. I just need some direction or thought on how to use the FileManager collection that is generated via 'SelectedFiles' and add them as an attachment to the email. I would really like to Zip the files if possible, but at this point simply attaching them is fine. Any thoughts?
Dim fileManager As ASPxFileManager = TryCast(sender, ASPxFileManager)
If ASPxFileManager1.SelectedFiles IsNot Nothing AndAlso ASPxFileManager1.SelectedFiles.Length > 0 Then
For i As Integer = 0 To ASPxFileManager1.SelectedFiles.Length - 1
Dim file = ASPxFileManager1.SelectedFiles.ToString
Dim attachments As New Attachment(fileManager.SelectedFiles.ToString)???
Next
End If
Try
Dim mail As New MailMessage("noreply", DropDownEdit.Text)
Dim smtp_Server As New SmtpClient("host") With {.Credentials = New Net.NetworkCredential("username", "password")}
mail.Subject = "SUBJECT"
mail.IsBodyHtml = False
mail.Body = "Testing"
smtp_Server.Send(mail)
successLabel.Text = "Your email was sent successfully."
Catch ex As Exception
End Try
End Sub
Dim attachments As New Attachment(ReadFile(ASPxFileManager1.SelectedFiles(i)), file)
mail.Attachments.Add(attachments)
The function below was needed to Read the bytes and then attach the items to the MailMessage.
Public Function ReadFile(file__1 As FileManagerFile) As System.IO.Stream
'This function allows us to pull the bytes from the DB value to render the file.
Dim filePath As String = (file__1.RelativeName)
Dim fileData As Byte()
Using con As New SqlConnection([Global].conn)
Dim sqlCmd As New SqlCommand()
sqlCmd.Connection = con
sqlCmd.Parameters.Add("#Name", SqlDbType.VarChar).Value = file__1.Name
sqlCmd.Parameters.Add("#APIKey", SqlDbType.Int).Value = Session("_UserAPIKey")
sqlCmd.CommandText = "SELECT STATEMENT"
con.Open()
Dim sqlReader As SqlDataReader = sqlCmd.ExecuteReader()
If sqlReader.HasRows Then
While sqlReader.Read()
fileData = CType(sqlReader(0), Byte())
End While
End If
End Using
Return New MemoryStream(fileData)
End Function
I am trying to display an embed an image within the body of an email. The is sent, however without the image.
Below is the code:
Dim mail As New MailMessage()
mail.[To].Add("siu07aj#reading.ac.uk")
mail.From = New MailAddress("atiqisthebest#hotmail.com")
mail.Subject = "Test Email"
Dim Body As String = "<b>Welcome to codedigest.com!!</b><br><BR>Online resource for .net articles.<BR><img alt="""" hspace=0 src=""cid:imageId"" align=baseline border=0 >"
Dim htmlView As AlternateView = AlternateView.CreateAlternateViewFromString(Body, Nothing, "text/html")
Dim imagelink As New LinkedResource(Server.MapPath(".") & "\uploads\CIMG1443.JPG", "image/jpg")
imagelink.ContentId = "imageId"
imagelink.TransferEncoding = System.Net.Mime.TransferEncoding.Base64
htmlView.LinkedResources.Add(imagelink)
mail.AlternateViews.Add(htmlView)
Dim smtp As New SmtpClient()
smtp.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis
smtp.Host = ConfigurationManager.AppSettings("SMTP")
smtp.Port = 587
'smtp.EnableSsl = True
smtp.Credentials = New System.Net.NetworkCredential(ConfigurationManager.AppSettings("FROMEMAIL"), ConfigurationManager.AppSettings("FROMPWD"))
smtp.Send(mail)
In the body of the email only the following is display:
Welcome to CodeDigest.Com!!
Any idea how I can get the CIMG1443.JPG displaying?
Thanks
you could try to inline the image, by converting it to a base64-string with the following method:
Public Function ImageToBase64(image As Image, format As System.Drawing.Imaging.ImageFormat) As String
If image Is Nothing Then Return ""
Using ms As New MemoryStream()
' Convert Image to byte[]
image.Save(ms, format)
Dim imageBytes As Byte() = ms.ToArray()
' Convert byte[] to Base64 String
Dim base64String As String = Convert.ToBase64String(imageBytes)
Return base64String
End Using
End Function
Then you add the image to your HTML using something like this (where yourImage is an instance of the Image-class):
dim imageString = "<img src=""data:image/png;base64," + ImageToBase64(yourImage, ImageFormat.Png) + "="" />"
That way you would get around adding the image as resource. This worked for me in several places, even though I must admit that I haven't tryed it on hmlt emails.
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