i convert a SVG to canvas using canvg to an image and then vb.net client side i convert the image to bytearray() and saved it to a folder on my server so i can attached by email :
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim path = Server.MapPath("PDFs\")
Dim fileNameWithPath As String = path + DateTime.Now.ToString().Replace("/", "-").Replace(" ", "-").Replace(":", "") + ".jpeg"
Dim fs As FileStream = New FileStream(fileNameWithPath, FileMode.Create)
Dim bw As BinaryWriter = New BinaryWriter(fs)
Dim ByteArray() As Byte = Convert.FromBase64String(hfChartImg.Value)
bw.Write(ByteArray)
bw.Close()
Dim file As String = fileNameWithPath
Dim message As New MailMessage()
message.From = New MailAddress("****************")
message.To.Add(New MailAddress("***************"))
message.Subject = "new image "
message.Body = "this is the apak chart img"
Dim data As New Attachment(file)
message.Attachments.Add(data)
Dim client As New SmtpClient()
client.Host = "smtp.gmail.com"
client.Credentials = New NetworkCredential("***************", "*******")
client.EnableSsl = True
client.Port = 587
client.Send(message)
End Sub
this code works fine and it send the image .
actually i don't need to save this image to my server i just wanted to send it without saving , this is what i have done so far
Protected Sub emailSend_Click(ByVal sender As Object, ByVal e As EventArgs) Handles emailSend.Click
Dim customerChoice As String = DropDownList1.Text
Select Case customerChoice
Case "pdf"
MsgBox("select pdf ")
Case "image"
Dim imageFile As MemoryStream = New MemoryStream()
Dim bw As BinaryWriter = New BinaryWriter(imageFile)
Dim bytearray() As Byte = Convert.FromBase64String(hfChartImg.Value)
bw.Write(bytearray)
am i very far from doing what i want ???
您正在尝试写
Dim data As New Attachment(New MemoryStream(ByteArray), "SomeName")
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