ContentType.Name Proprietà

Definizione

Spazio dei nomi:

System.Net.Mime

Assembly:

System.Net.Mail.dll

Origine:

ContentType.cs

Ottiene o imposta il valore del parametro name incluso nell'intestazione Content-Type rappresentata da questa istanza.

public:
 property System::String ^ Name { System::String ^ get(); void set(System::String ^ value); };

public string Name { get; set; }

member this.Name : string with get, set

Public Property Name As String

Valore della proprietà

String

Classe String contenente il valore associato al parametro name.

Esempio

L'esempio di codice seguente imposta il valore della proprietà per specificare un nome per un file collegato come flusso.

// The following example sends a summary of a log file as the message
// and the log as an email attachment.
static void SendNamedErrorLog( String^ server, String^ recipientList )
{
   
   // Create a message from logMailer@contoso.com to recipientList.
   MailMessage^ message = gcnew MailMessage( L"logMailer@contoso.com",recipientList );
   message->Subject = L"Error Log report";
   String^ fileName = L"log.txt";
   
   // Get the file stream for the error log.
   // Requires the System.IO namespace.
   FileStream^ fs = gcnew FileStream( fileName,FileMode::Open,FileAccess::Read );
   StreamReader^ s = gcnew StreamReader( fs );
   int errors = 0;
   while ( s->ReadLine() != nullptr )
   {
      
      // Process each line from the log file here.
      errors++;
   }

   message->Body = String::Format( L"{0} errors in log as of {1}", errors, DateTime::Now );
   
   // Close the stream reader. This also closes the file.
   s->Close();
   
   // Re-open the file at the beginning to make the attachment.
   fs = gcnew FileStream( fileName,FileMode::Open,FileAccess::Read );
   
   // Make a ContentType indicating that the log data
   // that is attached is plain text and is named.
   ContentType^ ct = gcnew ContentType;
   ct->MediaType = MediaTypeNames::Text::Plain;
   ct->Name = String::Format( L"log{0}.txt", DateTime::Now );
   
   // Create the attachment.
   Attachment^ data = gcnew Attachment( fs,ct );
   
   // Add the attachment to the message.
   message->Attachments->Add( data );
   
   // Send the message.
   // Include credentials if the server requires them.
   SmtpClient^ client = gcnew SmtpClient( server );
   client->Credentials = CredentialCache::DefaultNetworkCredentials;
   client->Send( message );
   data->~Attachment();
   client->~SmtpClient();
   
   // Close the log file.
   fs->Close();
   return;
}

// The following example sends a summary of a log file as the message
// and the log as an email attachment.
public static void SendNamedErrorLog(string server, string recipientList)
{
    // Create a message from logMailer@contoso.com to recipientList.
    MailMessage message = new MailMessage(
       "logMailer@contoso.com", recipientList);

    message.Subject = "Error Log report";
    string fileName = "log.txt";
    // Get the file stream for the error log.
    // Requires the System.IO namespace.
    FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
    StreamReader s = new StreamReader(fs);
    int errors = 0;
    while (s.ReadLine() != null)
    {
        // Process each line from the log file here.
        errors++;
    }
    // The email message summarizes the data found in the log.
    message.Body = String.Format("{0} errors in log as of {1}",
        errors, DateTime.Now);
    // Close the stream reader. This also closes the file.
    s.Close();
    // Re-open the file at the beginning to make the attachment.
    fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
    // Make a ContentType indicating that the log data
    // that is attached is plain text and is named.
    ContentType ct = new ContentType();
    ct.MediaType = MediaTypeNames.Text.Plain;
    ct.Name = "log" + DateTime.Now.ToString() + ".txt";
    // Create the attachment.
    Attachment data = new Attachment(fs, ct);
    // Add the attachment to the message.
    message.Attachments.Add(data);
    // Send the message.
    // Include credentials if the server requires them.
    SmtpClient client = new SmtpClient(server);
    client.Credentials = CredentialCache.DefaultNetworkCredentials;

    try
    {
        client.Send(message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Exception caught in SendNamedErrorLog: {0}",
            ex.ToString());
    }
    data.Dispose();
    // Close the log file.
    fs.Close();
    return;
}

Commenti

Nell'esempio seguente di un'intestazione Content-Type il valore della Name proprietà è "data.xyz".

content-type: application/x-myType; name=data.xyz

Una grammatica che dettaglia la sintassi dell'intestazione Content-Type è descritta in RFC 2045 Sezione 5.1, disponibile in https://www.ietf.org.

Quando si specifica il contenuto per un AttachmentStream oggetto come o String, è possibile usare Name per impostare il nome del file che archivia il contenuto nel sistema del destinatario.