Objective-C

Count the Attachments in an Email

Demonstrates the read-only Chilkat Email.NumAttachments property, which is the number of ordinary attachments in the email. Attachment indexes are zero-based. Related resources inside a multipart/related enclosure are counted separately by NumRelatedItems, and embedded message/rfc822 emails by NumAttachedMessages. This example adds two attachments and prints the count.

Background: An "attachment" is a MIME part meant to be saved or opened as a separate file, as opposed to being displayed as the message body. Chilkat decides whether a part is an attachment by weighing its MIME structure, content type, and Content-Disposition together — so a part can count as an attachment even without an explicit Content-Disposition: attachment header. Note that if an email was downloaded from an IMAP server without its attachment data, this property reflects only what is actually present in the object.

Chilkat Objective-C Downloads

Download Chilkat for Objective-C

Objective-C

#import <CkoEmail.h>

//  Demonstrates the read-only Email.NumAttachments property, which is the number
//  of ordinary attachments contained in the email.  Attachment indexes are zero-based.

CkoEmail *email = [[CkoEmail alloc] init];
email.Subject = @"Email with attachments";
email.Body = @"Two files are attached.";

//  Add two string attachments.
[email AddStringAttachment: @"readme.txt" str: @"This is the first attachment."];
[email AddStringAttachment: @"notes.txt" str: @"This is the second attachment."];

NSLog(@"%@%d",@"NumAttachments = ",[email.NumAttachments intValue]);