MailMessage.Attachments Property

public:
 property System::Net::Mail::AttachmentCollection ^ Attachments { System::Net::Mail::AttachmentCollection ^ get(); };

public System.Net.Mail.AttachmentCollection Attachments { get; }

member this.Attachments : System.Net.Mail.AttachmentCollection

Public ReadOnly Property Attachments As AttachmentCollection

Property Value

A writable AttachmentCollection.

Examples

The following code example demonstrates creating and sending an email message with an attachment.

public static void CreateMessageWithAttachment(string server)
{
    // Specify the file to be attached and sent.
    // This example assumes that a file named Data.xls exists in the
    // current working directory.
    string file = "data.xls";
    // Create a message and set up the recipients.
    MailMessage message = new MailMessage(
        "[email protected]",
        "[email protected]",
        "Quarterly data report.",
        "See the attached spreadsheet.");

    // Create  the file attachment for this email message.
    Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
    // Add time stamp information for the file.
    ContentDisposition disposition = data.ContentDisposition;
    disposition.CreationDate = System.IO.File.GetCreationTime(file);
    disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
    disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
    // Add the file attachment to this email message.
    message.Attachments.Add(data);

    //Send the message.
    SmtpClient client = new SmtpClient(server);
    // Add credentials if the SMTP server requires them.
    client.Credentials = CredentialCache.DefaultNetworkCredentials;

    try
    {
        client.Send(message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Exception caught in CreateMessageWithAttachment(): {0}",
            ex.ToString());
    }
    // Display the values in the ContentDisposition for the attachment.
    ContentDisposition cd = data.ContentDisposition;
    Console.WriteLine("Content disposition");
    Console.WriteLine(cd.ToString());
    Console.WriteLine("File {0}", cd.FileName);
    Console.WriteLine("Size {0}", cd.Size);
    Console.WriteLine("Creation {0}", cd.CreationDate);
    Console.WriteLine("Modification {0}", cd.ModificationDate);
    Console.WriteLine("Read {0}", cd.ReadDate);
    Console.WriteLine("Inline {0}", cd.Inline);
    Console.WriteLine("Parameters: {0}", cd.Parameters.Count);
    foreach (DictionaryEntry d in cd.Parameters)
    {
        Console.WriteLine("{0} = {1}", d.Key, d.Value);
    }
    data.Dispose();
}

Public Shared Sub CreateMessageWithAttachment(ByVal server As String)
    ' Specify the file to be attached And sent.
    ' This example assumes that a file named Data.xls exists in the
    ' current working directory.
    Dim file As String = "data.xls"
    ' Create a message and set up the recipients.
    Dim message As MailMessage = New MailMessage(
        "[email protected]",
        "[email protected]",
        "Quarterly data report.",
        "See the attached spreadsheet.")

    ' Create  the file attachment for this email message.
    Dim data As Attachment = New Attachment(file, MediaTypeNames.Application.Octet)
    ' Add time stamp information for the file.
    Dim disposition As ContentDisposition = data.ContentDisposition
    disposition.CreationDate = System.IO.File.GetCreationTime(file)
    disposition.ModificationDate = System.IO.File.GetLastWriteTime(file)
    disposition.ReadDate = System.IO.File.GetLastAccessTime(file)
    ' Add the file attachment to this email message.
    message.Attachments.Add(data)

    ' Send the message
    Dim client As SmtpClient = New SmtpClient(server)
    ' Add credentials if the SMTP server requires them.
    client.Credentials = CredentialCache.DefaultNetworkCredentials

    Try
        client.Send(message)
    Catch ex As Exception
        Console.WriteLine("Exception caught in CreateMessageWithAttachment(): {0}", ex.ToString())
    End Try

    ' Display the values in the ContentDisposition for the attachment.
    Dim cd As ContentDisposition = data.ContentDisposition
    Console.WriteLine("Content disposition")
    Console.WriteLine(cd.ToString())
    Console.WriteLine("File {0}", cd.FileName)
    Console.WriteLine("Size {0}", cd.Size)
    Console.WriteLine("Creation {0}", cd.CreationDate)
    Console.WriteLine("Modification {0}", cd.ModificationDate)
    Console.WriteLine("Read {0}", cd.ReadDate)
    Console.WriteLine("Inline {0}", cd.Inline)
    Console.WriteLine("Parameters: {0}", cd.Parameters.Count)

    For Each d As DictionaryEntry In cd.Parameters
        Console.WriteLine("{0} = {1}", d.Key, d.Value)
    Next

    data.Dispose()
End Sub

Remarks

Use the collection returned by the Attachments property to add an attachment, such as a file or the contents of a Stream, to this MailMessage.

Create an Attachment that contains or references the data to be attached, and then add the Attachment to the collection returned by Attachments.