Objective-C

Remove a Single Attachment from an Email

Demonstrates the Chilkat Email.DropSingleAttachment method, which removes the attachment at the specified zero-based index. Valid indexes run from 0 through NumAttachments - 1. This example adds two attachments, removes the first, and prints the count before and after.

Background: Attachments are addressed by a zero-based index, so the first is 0, the second 1, and so on. DropSingleAttachment removes just one — use it to prune a specific file (say, an oversized or unwanted attachment) while keeping the rest. Note that after a removal the remaining attachments shift down, so if you are deleting several by index, iterate from the highest index downward to avoid skipping any.

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Objective-C

#import <CkoEmail.h>

//  Demonstrates the DropSingleAttachment method, which removes the attachment at the
//  specified zero-based index.

CkoEmail *email = [[CkoEmail alloc] init];
email.Subject = @"Drop a single attachment";

[email AddStringAttachment: @"a.txt" str: @"first attachment"];
[email AddStringAttachment: @"b.txt" str: @"second attachment"];
NSLog(@"%@%d",@"NumAttachments before = ",[email.NumAttachments intValue]);

//  Remove the attachment at index 0 (the first attachment).
[email DropSingleAttachment: [NSNumber numberWithInt: 0]];

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