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How to use the Cdosys.dll library to send an e-mail message with attachments by using Visual C#
This article was previously published under Q310212
This article describes how to use the Collaboration Data Objects (CDO) for Windows 2000 library (Cdosys.dll) to send an e-mail message with attachments. You can send text or HTML or a Web page in the body of the e-mail message by using the local SMTP server or by using a smart host server in Microsoft Visual C#.
Note The Cdosys.dll library is also known as CDOSYS.
To use CDOSYS as described in the "Summary" section, follow these steps:
- Start Microsoft Visual Studio.
- On the File menu, click New, and then click Project.
- Under Project Types, click Visual C#, and then click Console Application under Templates. By default, Program.cs is created.
Note In Microsoft Visual C# .NET 2003, Visual C# is changed to Visual C# Projects. By default, Class1.cs is created. - Add a reference to the Microsoft CDO For Windows 2000 Library. To do this, follow these steps:
- On the Project menu, click Add Reference.
- On the COM tab, locate Microsoft CDO For Windows 2000 Library.
Note In Visual C# .NET 2003, click Select. - To accept your selections, click OK in the Add References dialog box.
If you receive a dialog box to generate wrappers for the libraries that you selected, click Yes.
- In the code window, replace all the code with the following code:
namespace CdoSys
{
using System;
class Class1
{
static void Main(string[] args)
{
try
{
CDO.Message oMsg = new CDO.Message();
CDO.IConfiguration iConfg;
iConfg = oMsg.Configuration;
ADODB.Fields oFields;
oFields = iConfg.Fields;
// Set configuration.
ADODB.Field oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
//TODO: To send by using the smart host, uncomment the following lines:
//oField.Value = CDO.CdoSendUsing.cdoSendUsingPort;
//oField = oFields["http://schemas.microsoft.com/cdo/configuration/smtpserver"];
//oField.Value = "smarthost";
// TODO: To send by using local SMTP service.
//oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
//oField.Value = 1;
oFields.Update();
// Set common properties from message.
//TODO: To send text body, uncomment the following line:
//oMsg.TextBody = "Hello, how are you doing?";
//TODO: To send HTML body, uncomment the following lines:
//String sHtml;
//sHtml = "<HTML>\n" +
// "<HEAD>\n" +
// "<TITLE>Sample GIF</TITLE>\n" +
// "</HEAD>\n" +
// "<BODY><P>\n" +
// "<h1><Font Color=Green>Inline graphics</Font></h1>\n" +
// "</BODY>\n" +
// "</HTML>";
//oMsg.HTMLBody = sHtml;
//TOTO: To send WEb page in an e-mail, uncomment the following lines and make changes in TODO section.
//TODO: Replace with your preferred Web page
//oMsg.CreateMHTMLBody("http://www.microsoft.com",
// CDO.CdoMHTMLFlags.cdoSuppressNone,
// "", "");
oMsg.Subject = "Test SMTP";
//TODO: Change the To and From address to reflect your information.
oMsg.From = "someone@example.com";
oMsg.To = "someone@example.com";
//ADD attachment.
//TODO: Change the path to the file that you want to attach.
oMsg.AddAttachment("C:\\Hello.txt", "", "");
oMsg.AddAttachment("C:\\Test.doc", "", "");
oMsg.Send();
}
catch (Exception e)
{
Console.WriteLine("{0} Exception caught.", e);
}
return;
}
}
} - Where TODO appears in the code, modify the code as indicated.
- To build and run the program, press F5.
- Verify that the e-mail message has been both sent and received.
For more information about Microsoft Office development with Visual Studio, see the following Microsoft Developer Network (MSDN) Web site:
For additional information about how to use CDOSYS, click the following article numbers to view the articles in the Microsoft Knowledge Base:
310221
(http://kbalertz.com/Feedback.aspx?kbNumber=310221/
)
How to use the Cdosys.dll library to embed a message in a new message by using Visual C# .NET
310224
(http://kbalertz.com/Feedback.aspx?kbNumber=310224/
)
How to use the Cdosys.dll library to process mail in the Drop directory by using Visual C# .NET
310225
(http://kbalertz.com/Feedback.aspx?kbNumber=310225/
)
How to use the Cdosys.dll Library to save a message to a file by using Visual C# .NET
Article ID: 310212 - Last Review: July 30, 2008 - Revision: 4.0
APPLIES TO
- Microsoft Visual C# 2008 Express Edition
- Microsoft Visual C# 2005
- Microsoft Collaboration Data Objects 2.0
- Microsoft ActiveX Data Objects 2.5
- Microsoft ActiveX Data Objects 2.6
- Microsoft ActiveX Data Objects 2.7
- Microsoft Internet Information Services 6.0
- Microsoft Internet Information Services 5.0
| kbsweptvs2008 kbcode kbhowto KB310212 |
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