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ContentDisposition::ToString Method

Returns a String representation of this instance.

Namespace:  System.Net.Mime
Assembly:  System (in System.dll)
public:
virtual String^ ToString() override

Return Value

Type: System::String
A String that contains the property values for this instance.

The string returned by the ToString method is the Content-Disposition header.

The Content-Disposition header is described in RFC 2183 available at http://www.ietf.org.

The following code example demonstrates calling this method.

   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 = L"data.xls";

      // Create a message and set up the recipients.
      MailMessage^ message = gcnew MailMessage( L"jane@contoso.com",L"ben@contoso.com",L"Quarterly data report.",L"See the attached spreadsheet." );

      // Create  the file attachment for this e-mail message.
      Attachment^ data = gcnew 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 e-mail message.
      message->Attachments->Add( data );

      //Send the message.
      SmtpClient^ client = gcnew SmtpClient( server );

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

      // Display the values in the ContentDisposition for the attachment.
      ContentDisposition^ cd = data->ContentDisposition;
      Console::WriteLine( L"Content disposition" );
      Console::WriteLine( cd );
      Console::WriteLine( L"File {0}", cd->FileName );
      Console::WriteLine( L"Size {0}", cd->Size );
      Console::WriteLine( L"Creation {0}", cd->CreationDate );
      Console::WriteLine( L"Modification {0}", cd->ModificationDate );
      Console::WriteLine( L"Read {0}", cd->ReadDate );
      Console::WriteLine( L"Inline {0}", cd->Inline );
      Console::WriteLine( L"Parameters: {0}", cd->Parameters->Count );
      IEnumerator^ myEnum1 = cd->Parameters->GetEnumerator();
      while ( myEnum1->MoveNext() )
      {
         DictionaryEntry^ d = safe_cast<DictionaryEntry^>(myEnum1->Current);
         Console::WriteLine( L"{0} = {1}", d->Key, d->Value );
      }

      data->~Attachment();
      client->~SmtpClient();
   }

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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