Make Hebrew text/plain email right-justified - email

I am writing a script for Unity and I have a problem. I want to do the newsletter for a couple of people. I am using System.Mail. Here is my C# code:
MailMessage mail = new MailMessage();
mail.From = new MailAddress(e_mail);
mail.To.Add(email);
mail.Subject = "ברוכים הבאים לאלמינדה‎";
mail.Body =
"!ברוכים הבאים לאלמינדה \n" +
".תודה על הרשמתכם \n" +
"www.elminda.com :לקבלת מידע נוסף ולצפייה בסרטון קצר המתאר את הטכנולוגיה של אלמינדה, בקרו באתר שלנו";
SmtpClient smtpServer = new SmtpClient("smtp.gmail.com");
smtpServer.Port = 587;
smtpServer.Credentials = new System.Net.NetworkCredential(e_mail, password) as ICredentialsByHost;
smtpServer.EnableSsl = true;
ServicePointManager.ServerCertificateValidationCallback =
delegate (object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{ return true; };
smtpServer.Send(mail);
But since the language is Hebrew, I expect that the location of the sentences will be on the right, but it will be on the left. How to do so
what would it be on the right? (The option with spaces is not suitable, since it all depends on the different screen resolutions and on the mobile phone it all breaks down)

Instead of putting the text in reverse order to get it to display right-to-left, begin your message with a Unicode RTL mark U+200F and put the rest of the text in the order you would write it (I can't read Hebrew but from your description I guess starting with יכורב...)

Related

How to place the Same Digital signatures to Multiple places in PDF using itextsharp.net

I have implemented Digital Signature using iTextSharp Dll to sign PDF files with a single signature creating empty signature fields and update the signature field with signed hash working fine. Now, I want to place the same digital signature in every page of pdf. It's my client requirement.
I’m using the following code:
public class MyExternalSignatureContainer : IExternalSignatureContainer
{
private readonly byte[] signedBytes;
public MyExternalSignatureContainer(byte[] signedBytes)
{
this.signedBytes = signedBytes;
}
public byte[] Sign(Stream data)
{
return signedBytes;
}
public void ModifySigningDictionary(PdfDictionary signDic)
{
}
}
Below code used in program
PdfReader reader = new PdfReader(unsignedPdf);
FileStream os = File.OpenWrite(tempPdf);
PdfStamper stamper = PdfStamper.CreateSignature(reader, os, '\0');
PdfSignatureAppearance appearance = stamper.SignatureAppearance;
appearance.Reason = "Reason1";
appearance.Contact = "";
appearance.Location = "Location1";
appearance.Acro6Layers = false;
appearance.Image = null;
appearance.SignatureRenderingMode = PdfSignatureAppearance.RenderingMode.DESCRIPTION;
appearance.SetVisibleSignature(new iTextSharp.text.Rectangle(36, 748, 144, 780), 1, null);
for (int i = 1; i < 8; i++)
{
var signatureField = PdfFormField.CreateSignature(stamper.Writer);
var signatureRect = new Rectangle(200, 200, 100, 100);
signatureField.Put(PdfName.T, new PdfString("ClientSignature_"+i.ToString()));
PdfIndirectReference PRef = stamper.Writer.PdfIndirectReference;
signatureField.Put(PdfName.V, PRef);
signatureField.Put(PdfName.F, new PdfNumber("132"));
signatureField.SetWidget(signatureRect, null);
signatureField.Put(PdfName.SUBTYPE, PdfName.WIDGET);
PdfDictionary xobject1 = new PdfDictionary();
PdfDictionary xobject2 = new PdfDictionary();
xobject1.Put(PdfName.N, appearance.GetAppearance().IndirectReference);
xobject2.Put(PdfName.AP, xobject1);
signatureField.Put(PdfName.AP, xobject1);
signatureField.SetPage();
PdfDictionary xobject3 = new PdfDictionary();
PdfDictionary xobject4 = new PdfDictionary();
xobject4.Put(PdfName.FRM, appearance.GetAppearance().IndirectReference);
xobject3.Put(PdfName.XOBJECT, xobject4);
signatureField.Put(PdfName.DR, xobject3);
stamper.AddAnnotation(signatureField, i);
}
IExternalSignatureContainer external = new ExternalBlankSignatureContainer(PdfName.ADOBE_PPKMS, PdfName.ADBE_PKCS7_DETACHED);
MakeSignature.SignExternalContainer(appearance, external, 8192);
stamper.Close();
byte[] SignedHash = DoEsign(SHA256Managed.Create().ComputeHash(appearance.GetRangeStream());
os.close();
reader.close();
reader = new PdfReader(tempPdf))
os = File.OpenWrite(signedPdf)
IExternalSignatureContainer external1 = new MyExternalSignatureContainer(SignedHash);
MakeSignature.SignDeferred(reader, signatureFieldName, os, external1);
os.close();
reader.close();
Please suggest me to complete the task
To give all signature fields the same single value wrapping the newly created signature container, they must all reference the same indirect object as value. Unfortunately iText creates the indirect object for the signature value only after the application code had the chance to add its additional fields which in turn require a reference to that signature value object. Thus, the application code has to anticipate the object number that indirect object will have.
This anticipation or prediction of the object number is very delicate, it depends on the exact same use case and can also become incorrect as the result of minor changes in the iTextSharp library
To make this easier, the application code should add those signature fields with their signature value references as late as possible, so there are as few other new indirect objects created as possible until iText creates the value indirect object.
As it turns out, the ModifySigningDictionary method of an IExternalSignatureContainer is a good position for that.
As soon as one adds one's code there, another issue pops up: There is no means to set the anticipated object number in a PdfIndirectReference instance externally. One way to get around this is to mimic such a reference using a PdfLiteral. (Well, probably one could also use reflection for this.)
Furthermore it turns out that one best creates the appearance streams to use by all one's additional signature fields before building that PdfLiteral mimicking a PdfIndirectReference as this simplifies the calculation of the object number iText will use for the actual value object.
With this in mind, here a proof-of concept. This proof of concept makes use of an IExternalSignature instance for actually signing. This is not a necessary precondition, one can also use an IExternalSignatureContainer instead with only a few changes, even an ExternalBlankSignatureContainer as in the question to later finalize the signature using MakeSignature.SignDeferred.
So given cipher parameters cp (private key material, e.g. pk.Key for an Org.BouncyCastle.Pkcs.AsymmetricKeyEntry pk) and a certificate chain chain, one would use
PdfReader reader = new PdfReader(SRC);
FileStream os = new FileStream(DEST, FileMode.Create, FileAccess.Write);
PdfStamper stamper = PdfStamper.CreateSignature(reader, os, '\0');
PdfSignatureAppearance appearance = stamper.SignatureAppearance;
appearance.Reason = "Reason1";
appearance.Contact = "";
appearance.Location = "Location1";
appearance.Acro6Layers = false;
appearance.Image = null;
appearance.SignatureRenderingMode = PdfSignatureAppearance.RenderingMode.DESCRIPTION;
appearance.SetVisibleSignature(new iTextSharp.text.Rectangle(10, 10, 100, 100), reader.NumberOfPages, null);
IExternalSignature externalSignature = new PrivateKeySignature(cp, "SHA-256");
AllPagesSignatureContainer allPagesContainer = new AllPagesSignatureContainer(appearance, externalSignature, chain);
MakeSignature.SignExternalContainer(appearance, allPagesContainer, 8192);
with this external signature container class
public class AllPagesSignatureContainer : IExternalSignatureContainer
{
public AllPagesSignatureContainer(PdfSignatureAppearance appearance, IExternalSignature externalSignature, ICollection<X509Certificate> chain)
{
this.appearance = appearance;
this.chain = chain;
this.externalSignature = externalSignature;
}
public void ModifySigningDictionary(PdfDictionary signDic)
{
signDic.Put(PdfName.FILTER, PdfName.ADOBE_PPKMS);
signDic.Put(PdfName.SUBFILTER, PdfName.ADBE_PKCS7_DETACHED);
PdfStamper stamper = appearance.Stamper;
PdfReader reader = stamper.Reader;
PdfDictionary xobject1 = new PdfDictionary();
PdfDictionary xobject2 = new PdfDictionary();
xobject1.Put(PdfName.N, appearance.GetAppearance().IndirectReference);
xobject2.Put(PdfName.AP, xobject1);
PdfIndirectReference PRef = stamper.Writer.PdfIndirectReference;
PdfLiteral PRefLiteral = new PdfLiteral((PRef.Number + 1 + 2*(reader.NumberOfPages - 1)) + " 0 R");
for (int i = 1; i < reader.NumberOfPages; i++)
{
var signatureField = PdfFormField.CreateSignature(stamper.Writer);
signatureField.Put(PdfName.T, new PdfString("ClientSignature_" + i.ToString()));
signatureField.Put(PdfName.V, PRefLiteral);
signatureField.Put(PdfName.F, new PdfNumber("132"));
signatureField.SetWidget(appearance.Rect, null);
signatureField.Put(PdfName.SUBTYPE, PdfName.WIDGET);
signatureField.Put(PdfName.AP, xobject1);
signatureField.SetPage();
Console.WriteLine(signatureField);
stamper.AddAnnotation(signatureField, i);
}
}
public byte[] Sign(Stream data)
{
String hashAlgorithm = externalSignature.GetHashAlgorithm();
PdfPKCS7 sgn = new PdfPKCS7(null, chain, hashAlgorithm, false);
IDigest messageDigest = DigestUtilities.GetDigest(hashAlgorithm);
byte[] hash = DigestAlgorithms.Digest(data, hashAlgorithm);
byte[] sh = sgn.getAuthenticatedAttributeBytes(hash, null, null, CryptoStandard.CMS);
byte[] extSignature = externalSignature.Sign(sh);
sgn.SetExternalDigest(extSignature, null, externalSignature.GetEncryptionAlgorithm());
return sgn.GetEncodedPKCS7(hash, null, null, null, CryptoStandard.CMS);
}
PdfSignatureAppearance appearance;
ICollection<X509Certificate> chain;
IExternalSignature externalSignature;
}
The predicted indirect object number of the signature value in the line
PdfIndirectReference PRef = stamper.Writer.PdfIndirectReference;
PdfLiteral PRefLiteral = new PdfLiteral((PRef.Number + 1 + 2*(reader.NumberOfPages - 1)) + " 0 R");
strictly depends upon the use case being "exactly one signature field per page". For different use cases the estimate the prediction would differ.
I stress this here once again because e.g. the OP of this question did not take this into account when trying "to place multiple signatures on single page".
Another strict requirement for the object number prediction above is that the PdfStamper is created as above, i.e. not in append mode. If the signature is applied as an incremental update, i.e. in append mode, the lines above have to be replaced by
stamper.Writer.AddToBody(new PdfNull(), stamper.Writer.PdfIndirectReference, true);
PdfIndirectReference PRef = stamper.Writer.PdfIndirectReference;
PdfLiteral PRefLiteral = new PdfLiteral((PRef.Number + reader.NumberOfPages) + " 0 R");
This made a difference in the context of this question; the first line, adding an indirect null object to the PDF, is necessary to make sure that in case of PDFs with object streams the object stream object number has already been determined and does not slip between the next objects, resulting in an off-by-one error for our prediction.
Beware: While this procedure creates something which does not violate the letter of the PDF specifications (which only forbid the cases where the same field object is referenced from multiple pages, be it via the same or via distinct widgets), it clearly does violate its intent, its spirit. Thus, this procedure might also become forbidden as part of a Corrigenda document for the specification.

Send Email fields not rendering in Sitecore Web Forms For Marketers

I have an issue with the WFFM Send Email Message save action (Sitecore 6.5.0). I'm trying to send an email that includes the form placeholders from the "Insert Field" dropdown in the Send Email editor. Sometimes the fields will render correctly, but most times the email will include the placeholder text instead of the field's actual value.
For example, this is the email that is coming through:
First Name: [First Name]
Last Name: [Last Name]
Email: [Email Address]
Company Name: [Company Name]
Phone Number: [Phone Number]
I think it has to do with the Send Email editor using a rich text editor for the email template, but I've tried adjusting the message's HTML to no avail. This is what the markup looks like: (the <p> tags and labels used to be inline, but that didn't work either)
<p>First Name:
[<label id="{F49F9E49-626F-44DC-8921-023EE6D7948E}">First Name</label>]
</p>
<p>Last Name:
[<label id="{9CE3D48C-59A0-432F-B6F1-3AFD03687C94}">Last Name</label>]
</p>
<p>Email:
[<label id="{E382A37E-9DF5-4AFE-8780-17169E687805}">Email Address</label>]
</p>
<p>Company Name:
[<label id="{9C08AC2A-4128-47F8-A998-12309B381CCD}">Company Name</label>]
</p>
<p>Phone Number:
[<label id="{4B0C5FAC-A08A-4EF2-AD3E-2B7FDF25AFA7}">Phone Number</label>]
</p>
Does anyone know what could be going wrong?
I have encountered this issue before, but was using a custom email action. I managed to fix it by not using the deprecated methods in the SendMail class and instead using the
Sitecore.Form.Core.Pipelines.ProcessMessage namespace's ProcessMessage and ProcessMessageArgs classes.
My use case was a little more complicated than yours, as we were also attaching a PDF brochure to our message (which is why we were using the custom email action in the first place), but here is the code:
public class SendBrochureEmail : SendMail, ISaveAction, ISubmit
{
public new void Execute(ID formId, AdaptedResultList fields, params object[] data)
{
try
{
var formData = new NameValueCollection();
foreach (AdaptedControlResult acr in fields)
{
formData[acr.FieldName] = acr.Value;
}
var senderName = formData["Your Name"];
var emailTo = formData["Recipient Email"];
var recipientName = formData["Recipient Name"];
var documentTitle = formData["Document Title"];
if (documentTitle.IsNullOrEmpty())
{
documentTitle = String.Format("Documents_{0}", DateTime.Now.ToString("MMddyyyy"));
}
Subject = documentTitle;
if (!String.IsNullOrEmpty(emailTo))
{
BaseSession.FromName = senderName;
BaseSession.CatalogTitle = documentTitle;
BaseSession.ToName = recipientName;
var tempUploadPath = Sitecore.Configuration.Settings.GetSetting("TempPdfUploadPath");
var strPdfFilePath =
HttpContext.Current.Server.MapPath(tempUploadPath + Guid.NewGuid().ToString() + ".pdf");
//initialize object to hold WFFM mail/message arguments
var msgArgs = new ProcessMessageArgs(formId, fields, MessageType.Email);
var theDoc = PdfDocumentGenerator.BuildPdfDoc();
theDoc.Save(strPdfFilePath);
theDoc.Clear();
FileInfo fi = null;
FileStream stream = null;
if (File.Exists(strPdfFilePath))
{
fi = new FileInfo(strPdfFilePath);
stream = fi.OpenRead();
//attach the file with the name specified by the user
msgArgs.Attachments.Add(new Attachment(stream, documentTitle + ".pdf", "application/pdf"));
}
//get the email's "from" address setting
var fromEmail = String.Empty;
var fromEmailNode = Sitecore.Configuration.Factory.GetConfigNode(".//sc.variable[#name='fromEmail']");
if (fromEmailNode != null && fromEmailNode.Attributes != null)
{
fromEmail = fromEmailNode.Attributes["value"].Value;
}
//the body of the email, as configured in the "Edit" pane for the Save Action, in Sitecore
msgArgs.Mail.Append(base.Mail);
//The from address, with the sender's name (specified by the user) in the meta
msgArgs.From = senderName + "<" + fromEmail + ">";
msgArgs.Recipient = recipientName;
msgArgs.To.Append(emailTo);
msgArgs.Subject.Append(Subject);
msgArgs.Host = Sitecore.Configuration.Settings.MailServer;
msgArgs.Port = Sitecore.Configuration.Settings.MailServerPort;
msgArgs.IsBodyHtml = true;
//initialize the message using WFFM's built-in methods
var msg = new ProcessMessage();
msg.AddAttachments(msgArgs);
msg.BuildToFromRecipient(msgArgs);
//change links to be absolute instead of relative
msg.ExpandLinks(msgArgs);
msg.AddHostToItemLink(msgArgs);
msg.AddHostToMediaItem(msgArgs);
//replace the field tokens in the email body with the user-specified values
msg.ExpandTokens(msgArgs);
msg.SendEmail(msgArgs);
//no longer need the file or the stream - safe to close stream and delete delete it
if (fi != null && stream != null)
{
stream.Close();
fi.Delete();
}
}
else
{
Log.Error("Email To is empty", this);
throw new Exception("Email To is empty");
}
}
catch (Exception ex)
{
Log.Error("Test Failed.", ex, (object) ex);
throw;
}
finally
{
BrochureItems.BrochureItemIds = null;
}
}
public void Submit(ID formid, AdaptedResultList fields)
{
Execute(formid, fields);
}
public void OnLoad(bool isPostback, RenderFormArgs args)
{
}
}
It is very possible that the Email Action that WFFM ships with is using the deprecated methods, which could be your problem. I do not have time to look into it, but you can decompile the DLL and look to see what their Email Action is doing. Regardless, the above code should work out of the box, save for updating the fields to those that you are using and removing the code for attaching the PDF, should you choose to not have attachments.
Good luck, and happy coding :)
If you change a field on the form in any way (caption, name, type, etc) the link will change and you need to re-insert the placeholder and move it up to its location in your expected email. This is also true if you duplicate a form. You'll have to reinsert all the fields in the email or you will just get the outcome you show above.
Reinserting upon a change will ensure the value is collected!

send personal message as attachment and send it to particular cc so that other CC/TO/BCC cannot see that attachment

How can I attach a personal message as ATTACHMENT in outlook and then send it only to that particular CC recipient using C# ?
your question is not clear but I hope these information will help you....
Please find the below code to send an email to the CC recepient with attachment
var oApp = new Microsoft.Office.Interop.Outlook.Application();
var oMsg = (MailItem) oApp.CreateItem(OlItemType.olMailItem);
Recipients oRecips = oMsg.Recipients;
List<string> sCCRecipsList = new List<string>();
sCCRecipsList.Add("CCRecipient1");
sCCRecipsList.Add("CCRecipient2");
sCCRecipsList.Add("CCRecipient3");
Recipients oRecips = oMsg.Recipients;
foreach (string t in sCCRecipsList)
{
Recipient oCCRecip = oRecips.Add(t);
oCCRecip.Type = (int) OlMailRecipientType.olCC;
oCCRecip.Resolve();
}
oMsg.Attachments.Add(#"C:\\fileName.txt", iAttachType, iPosition, sDisplayName);
oMsg.HTMLBody = "Test Body";
oMsg.Subject = "Test Subject";
oMsg.Send();
CC list adding to the mail. Please see the below code
foreach (string t in sCCRecipsList)
{
Recipient oCCRecip = oRecips.Add(t);
oCCRecip.Type = (int) OlMailRecipientType.olCC;
oCCRecip.Resolve();
}
Attaching txt file to the mail, Please see the below code
oMsg.Attachments.Add(#"C:\\fileName.txt", iAttachType, iPosition, sDisplayName);

Sending Email from Visual Basic

I am working on a project and part of this project is to send emails to a list of email addresses located in SQL.
I am using the following code, which, when sent, just throws a "Sending Failed" error. Nothing else.
Can anyone please help me out with this one? I would really appreciate it.
'Connect to SQL Server database and query out only Address column to fill into DataTable
Dim con As SqlConnection = New SqlConnection("Data Source=.\SQLEXPRESS;Initial Catalog=FigClubs;Integrated Security=True;Pooling=False")
Dim cmd As SqlCommand = New SqlCommand("SELECT Email FROM Members", con)
con.Open()
Dim myDA As SqlDataAdapter = New SqlDataAdapter(cmd)
Dim myDataTable As DataTable = New DataTable
myDA.Fill(myDataTable)
con.Close()
con = Nothing
'New a MailMessage instance
Dim mailMessage As MailMessage = New MailMessage()
mailMessage.From = New MailAddress(TextBox4.Text.Trim())
' Determine the mailMessage.To property based on CheckBox checked status
If CheckBox1.Checked = True Then
For Each dr As DataRow In myDataTable.Rows
mailMessage.To.Add(New MailAddress(dr.Item(0).ToString))
Next
Else
mailMessage.To.Add(New MailAddress(TextBox3.Text.Trim()))
End If
mailMessage.Subject = TextBox1.Text.Trim()
mailMessage.Body = TextBox2.Text.Trim()
Dim smtpClient As SmtpClient = New SmtpClient("smtp.google.com")
smtpClient.Port = ("587")
smtpClient.Credentials = New System.Net.NetworkCredential("HIDDEN", "HIDDEN")
smtpClient.Send(mailMessage)
Try
smtpClient.Send(mailMessage)
Catch smtpExc As SmtpException
'Log errors
MsgBox(smtpExc.Message)
Catch ex As Exception
'Log errors
MsgBox(ex.Message)
End Try
I got that code from a google search.
Any help you can provide to get this working would be so appreciated.
Thanks in advance,
Dan
EDIT - Got it to work:
Got it to work using the following. Just in case anyone else needs it:
Try
Dim Smtp_Server As New SmtpClient
Dim e_mail As New MailMessage()
Smtp_Server.UseDefaultCredentials = False
Smtp_Server.Credentials = New Net.NetworkCredential("HIDDEN", "HIDDEN")
Smtp_Server.Port = 587
Smtp_Server.EnableSsl = True
Smtp_Server.Host = "smtp.gmail.com"
e_mail = New MailMessage()
e_mail.From = New MailAddress(TextBox4.Text)
e_mail.To.Add(TextBox3.Text)
e_mail.Subject = TextBox1.Text
e_mail.IsBodyHtml = False
e_mail.Body = TextBox2.Text
Smtp_Server.Send(e_mail)
MsgBox("Mail Sent")
Catch error_t As Exception
MsgBox(error_t.ToString)
End Try
Thanks guys. Hope all is well :)
Okay, here's a great solution for you...
Imports System.Net.Mail 'Namespace for sending the email
Public Class Form1 'Whatever class your doing this from...
'I tested with a button click event...
Private Sub btnSendEmail_Click(sender As Object, e As EventArgs) Handles btnSendEmail.Click
Dim dtEmails As New DataTable
Dim strEmails() As String = {"testing#yahoo.com", "testing#gmail.com"}
Dim strBuilder As New System.Text.StringBuilder 'Can be used to build a message
'This was only for my testing...
dtEmails.Columns.Add("EmailAddress")
For Each Str As String In strEmails
dtEmails.Rows.Add(Str)
Next
'Loop through our returned datatable and send the emails...'
If dtEmails.Rows.Count > 0 Then
strBuilder.AppendLine("Emails Confirmation")
strBuilder.AppendLine(" ")
For i As Integer = 0 To dtEmails.Rows.Count - 1 'Whatever your datatbale is called'
Try
Dim newMail As New Mail 'Use our new mail class to set our properties for the email'
newMail.MailMessageTo = dtEmails.Rows(i).Item("EmailAddress") 'What your email address column name is in the data table'
newMail.MailSubject = "Just a Test email!"
newMail.MailMessage = "Did you get this email, please let me know!"
If Mail.SendMail(newMail) Then
strBuilder.AppendLine("SENT - " & dtEmails.Rows(i).Item("EmailAddress").ToString.ToUpper)
Else
strBuilder.AppendLine("FAILED - " & dtEmails.Rows(i).Item("EmailAddress").ToString.ToUpper)
End If
Catch ex As Exception
Continue For
End Try
Next
End If
If strBuilder.Length > 0 Then
MessageBox.Show(strBuilder.ToString())
End If
End Sub
End Class
'You can put this class at the bottom of your class your using...This handles the emails...
Public Class Mail
Public Property MailMessageTo As String
Public Property MailMessage As String
Public Property MailSubject As String
'This will send your mail...
Public Shared Function SendMail(ByVal oMail As Mail) As Boolean
Dim Smtp_Server As New SmtpClient
Dim e_mail As New MailMessage()
Try
Smtp_Server.UseDefaultCredentials = False
Smtp_Server.Credentials = New Net.NetworkCredential("EMAIL", "PASSWORD")
Smtp_Server.Port = 587
Smtp_Server.EnableSsl = True
Smtp_Server.Host = "smtp.gmail.com"
e_mail = New MailMessage()
e_mail.From = New MailAddress("EMAIL") 'Whatever you want here'
e_mail.To.Add(oMail.MailMessageTo)
e_mail.Subject = oMail.MailSubject
e_mail.IsBodyHtml = False
e_mail.Body = oMail.MailMessage
Smtp_Server.Send(e_mail)
Return True
Catch error_t As Exception
Return False
Finally
Smtp_Server = Nothing
e_mail = Nothing
End Try
End Function
End Class
This works really well, you can edit as needed to. This is much more organized and easier to maintain for what you would need. Also another good note to remember your looping through a DataTable sending emails, you may want to put some of this on a BackgroundWorker as this can lock up the UI thread... Another thing to check when looping through your DataTable, you may want to check if the email your referencing isn't 'DBNull.value', I didn't check for that, other wise it will throw an exception.
Happy Coding!

How to Send automatic emails like newsletter

I see some question closed by administrator with similar question.
I will try to explain in detail the solution I'm looking for:
First I'm trying to develop a windows console application.
Sending frequency: monday to friday
How many users: from 5 to 20
Format of data:
A table where rows are countries and columns different types of products and the cells represent the sale of that country-product
Limitation:
Service users prefer not to use a pdf or excel or attachment of any type should be a html format possible to show in the body of mail
Currently I am creating the report almost artisan with something like:
.....
var myStringBuilder = new StringBuilder("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">");
myStringBuilder.Append("<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\">");
myStringBuilder.Append("</head><body>");
myStringBuilder.AppendLine();
myStringBuilder.Append("<table style=\"font-family: Calibri; text-align: right; font-size: x-small;\">");
myStringBuilder.AppendLine();
var header = new StringBuilder("<tr><th>a</th><th>CATEG1</th><th>CATEG2</th><th>CATEG3</th><th>CATEG4</th><th>TOTAL</th></tr>");
var line = new StringBuilder("<tr><td>a</td><td>b</td><td>c</td><td>z</td><td>e</td><td>f</td></tr>");
foreach (var a in _actuals)
{
line.Replace("a", a.CountryName);
if(a.Segment.ToLowerInvariant().Equals("categ1")) {
line.Replace("b", "[" + string.Format("{0:0,#}", a.LsvLcFact / 1000) + "]"); }
else if (a.Segment.ToLowerInvariant().Equals("categ2")) {
line.Replace("c", "[" + string.Format("{0:0,#}", a.LsvLcFact / 1000) + "]"); }
else if (a.Segment.ToLowerInvariant().Equals("categ3")) {
line.Replace("z", "[" + string.Format("{0:0,#}", a.LsvLcFact / 1000) + "]"); }
else {
line.Replace("e", "[" + string.Format("{0:0,#}", a.LsvLcFact / 1000) + "]"); }
}
.....
And in the class to send mail something like:
public void SendResumen(string subject ,StringBuilder content)
{
var oMsg = new MailMessage...;
... add users
oMsg.Subject = subject;
var mimeType = new ContentType("text/html");
var alternate = AlternateView.CreateAlternateViewFromString(content.ToString(), mimeType);
oMsg.AlternateViews.Add(alternate);
oMsg.IsBodyHtml = true;
var cli = Client();
cli.Send(oMsg);
}
Finally, I hope you understand what I'm doing and the question is:
Is there a tool I can use to not generate as crafted the message body?
I have a VB application that can send out messages that have an HTML payload, and it doesn't use the AlternateView functionality.
Dim mail As New MailMessage(fromUser.Email, toUser.Email)
mail.Subject = subject
mail.IsBodyHtml = True
mail.Body = message
While it would be nice to use the AlternateView functionality for those email clients that can't read the HTML payload, your code can't really use it because you're only supplying an HTML message. If you did manage to get the AlternateView functionality to work here, any client that couldn't read HTML would see the HTML markup instead of just simple message text. For this to truly work, I think you would need to provide both a text and HTML email message body.
I Accept the suggest from #Jim-Mischel