C# Discussion Boards - CodeProject

loyal ginger1-Jun-10 7:02

1-Jun-10 7:02

I am playing with a small program that sends emails through SMTP server. This is a C# Windows Forms application. The main part of the program looks like this:

using System;
using System.Text;
using System.Windows.Forms;
using System.Net.Mail;


namespace test_email_smtp
{
	public partial class send_mail_through_smtp : Form
	{
		public send_mail_through_smtp()
		{
			InitializeComponent();
		}

		private void send_mail_Click(object sender, EventArgs e)
		{
			SmtpClient client = new SmtpClient(smtp_server.Text);
			MailMessage message = new MailMessage(send_from.Text, send_to.Text);
			message.Body = mail_body.Text;
			message.Subject = mail_subject.Text;
			client.Send(message);
			message.Dispose();
		}
	}
}

"send_from", "send_to", "mail_body", "mail_subject", and "smtp_server" are TextBox controls on the Form.

When I ran the program and click the "send" button, and then close the program (by closing the form), the mail is sent IMMEDIATELY.

However, if I click the "send" button and leave the program running (not closing the program), after a minute or so, I will get a message saying "Your mail message was unable to be sent because the connection to your mail server was interrupted. Please open your email client and re-send the message from the Sent Messages folder." This does not happen all the time. I'd say 9 out of 10 times this message was shown. The one time it was not shown, the mail was sent after a long time.

By the way, the message is from "Symantec Email Proxy". When this message was shown, a balloon message was also popped up by the system tray area saying "Scanning message 1 of 1", also from Symantec.

All these problems do not exist if I close the program after I click the "send" button. The mail will be sent immediately. I need the program to keep running after the mail is sent. I can't close the program every time a mail needs to be sent. Any ideas? Thanks!

Re: Send mail through SMTP server

Abhinav S1-Jun-10 7:52

Abhinav S

1-Jun-10 7:52

Trying disabling your antivirus to see if you get the same problem.
If you don't, then it has something to do the the symantec firewall or virus scan.

My signature "sucks" today

Re: Send mail through SMTP server

loyal ginger1-Jun-10 8:51

loyal ginger

1-Jun-10 8:51

I have verified that the antivirus software running on my machine was the problem. Your help is appreciated.

Re: Send mail through SMTP server

OriginalGriff1-Jun-10 8:22

OriginalGriff

1-Jun-10 8:22

The suggestion made by Abhinav may help; if it does not, then:
SmtpClient implements IDisposable so it may be that the email is sent when the client is disposed. This would give the symptoms you describe, at least in terms of the send-when-application-closed problem. Try wraping your section in a using block.

using (SmtpClient client = new SmtpClient(smtp_server.Text))
   {
   MailMessage message = new MailMessage(send_from.Text, send_to.Text);
   message.Body = mail_body.Text;
   message.Subject = mail_subject.Text;
   client.Send(message);
   message.Dispose();
   }

Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.

Re: Send mail through SMTP server

loyal ginger1-Jun-10 8:33

loyal ginger

1-Jun-10 8:33

Thanks for your reply. I tried that and got the following compile time message:

Error	1	'System.Net.Mail.SmtpClient': type used in a using statement must be implicitly convertible to 'System.IDisposable'

I will do more research on this matter. Thanks!

Re: Send mail through SMTP server

OriginalGriff1-Jun-10 8:41

OriginalGriff

1-Jun-10 8:41

My apologies, it looks like MS are lying again... SmtpClient @ MSDN[^]

Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.

Re: Send mail through SMTP server

Luc Pattyn1-Jun-10 9:11

Luc Pattyn

1-Jun-10 9:11

OriginalGriff wrote:
it looks like MS are lying again

Hmm. Continuously improving themselves, that is what they are doing. It took them till 4.0 to realize SmtpClient had to implement IDisposable.

Laugh | :laugh:

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

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Re: Send mail through SMTP server

loyal ginger1-Jun-10 8:48

loyal ginger

1-Jun-10 8:48

After disabling the antivirus program, the original program sends the email immediately when the button is clicked. That indicates that the antivirus was the problem.

I still don't understand why closing the program bypasses the antivirus program's scanning of the email.

Another issue is that it's hard to ask the program's users to turn off their antivirus program to facilitate the healthy running of my program.

My solution to the problem may be to use separate processes for sending emails. I can spawn a small program just to send an email. It terminates by itself right after the mail is sent.

Thank you for your time!

Re: Send mail through SMTP server

OriginalGriff1-Jun-10 8:54

OriginalGriff

1-Jun-10 8:54

loyal ginger wrote:
Another issue is that it's hard to ask the program's users to turn off their antivirus program to facilitate the healthy running of my program.

I can see where that might be a problem. Laugh | :laugh:

loyal ginger wrote:
My solution to the problem may be to use separate processes for sending emails. I can spawn a small program just to send an email.

But if you gotta, you gotta. What kind of virus scanner are we talking?

Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.

Re: Send mail through SMTP server

loyal ginger1-Jun-10 9:14

loyal ginger

1-Jun-10 9:14

I have "Symantec AntiVirus" version 10.1.5.500 on my development machine. It's hard to predict what antivirus software will be on my client's machine. I am lucky to see this happen on my machine. Sometimes a fully tested application craps out on client's machines because some other software's interference, making the software developers look bad. I hope that does not happen to me.

Re: Send mail through SMTP server

Luc Pattyn1-Jun-10 9:59

Luc Pattyn

1-Jun-10 9:59

I would suggest you try .NET 4.0 and use the new SmtpClient.Dispose() method (directly or through a using statement, doesn't matter). I haven't done so myself yet, but it seems to be a new enhancement by MS, and I expect it to solve your problem.

Of course, you should not disable or replace your AV.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read formatted code with indentation, so please use PRE tags for code snippets.

I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).

File.Open strange behaviour

ds411-Jun-10 6:46

ds41

1-Jun-10 6:46

Hi all!

I've tried to create file using File.Open(filePath, FileMode.Create) where filePath contains Unicode symbols. I can see those specific symbols in the explorer but if I try to read folder content via cmd dir I see only "Filename (??????? ???)" where question char replaces desired symbols.
Even more. When I tried to open file from the Explorer I received an error "file does not exist". But opening from cmd with (?????) is OK.

Can anybody help me? Thanks in advance

Re: File.Open strange behaviour

#realJSOP1-Jun-10 7:38

#realJSOP

1-Jun-10 7:38

My advice is to not use unicode characters in paths/filenames.

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
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count words of office file

jojoba20111-Jun-10 5:54

jojoba2011

1-Jun-10 5:54

how to get the number of words in .doc OR .docx (MicrosoftWord file).
I will give the address of word file and i wanna get the number of words in it.

Thanks

Re: count words of office file

OriginalGriff1-Jun-10 5:56

OriginalGriff

1-Jun-10 5:56

Find the number of bytes, divide by two.

Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.

Re: count words of office file

Luc Pattyn1-Jun-10 6:52

Luc Pattyn

1-Jun-10 6:52

OriginalGriff wrote:
Find the number of bytes, divide by 42.

FTFY.
I don't think they have cut down on the overhead.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read formatted code with indentation, so please use PRE tags for code snippets.

I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).

Re: count words of office file

PIEBALDconsult1-Jun-10 5:57

PIEBALDconsult

1-Jun-10 5:57

Tools | Word count Big Grin | :-D

Re: count words of office file

jojoba20111-Jun-10 6:10

jojoba2011

1-Jun-10 6:10

I wanna to get this in my C# project.
So Please Help or Give correct solution .

Thanks

Re: count words of office file

hammerstein051-Jun-10 6:34

hammerstein05

1-Jun-10 6:34

Take document as string
Use regex to remove all numbers and punctuation
Split on CRLF for paragraphs, Split on space for word count

That would be my first attempt, and then I would be asking questions on any problems I had. So, maybe you should go and implement that and see if it gets you what you want, then come back and ask specific questions.

count words of office file

jojoba20111-Jun-10 7:09

jojoba2011

1-Jun-10 7:09

Thanks for you reply and solution .
Is it possible for you to give me small example .

Re: count words of office file

Not Active1-Jun-10 7:17

Not Active

1-Jun-10 7:17

Why not just ask someone to write this for you? A big part of being a developer is to know where to find knowledge and learning how to do it yourself.

I know the language. I've read a book. - _Madmatt

Re: count words of office file

Blue_Boy1-Jun-10 7:21

Blue_Boy

1-Jun-10 7:21

Mark Nischalke wrote:
Why not just ask someone to write this for you? A big part of being a developer is to know where to find knowledge and learning how to do it yourself.

I agree with you Smile | :)

I just found enough examples how to archive it and I sent him/her link in my previous post.

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If my post helps you kindly save my time by voting my post.

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Re: count words of office file

Blue_Boy1-Jun-10 7:08

Blue_Boy

1-Jun-10 7:08

I made a simple query on google, and I got this result[^].

I Love T-SQL
"Don't torture yourself,let the life to do it for you."
If my post helps you kindly save my time by voting my post.

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Re: count words of office file

Dan Mos1-Jun-10 8:27

Dan Mos

1-Jun-10 8:27

Record a macro that gets the word count using Tools -> WordCount

and transform that to C#.

Easy

That's if you're OK with interop.

Smile | :)

Just an irritated, ranting son of ... an IT guy.
At your trolling services

Re: count words of office file

William Winner1-Jun-10 8:57

William Winner

1-Jun-10 8:57

You can use the Word API. If you open a Word Document using the API, the DocumentClass has a property called "Words". This returns a Microsoft.Office.Interop.Word.Words class that has a count property.

See this page: Microsoft Office Development.[^]

Choose the version that you're working with and read up on the API. You can retrieve that information very easily using it.

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