Remove a Single Attachment from an Email

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

    email := chilkat.NewEmail()
    email.SetSubject("Drop a single attachment")

    email.AddStringAttachment("a.txt","first attachment")
    email.AddStringAttachment("b.txt","second attachment")
    fmt.Println("NumAttachments before = ", email.NumAttachments())

    //  Remove the attachment at index 0 (the first attachment).
    email.DropSingleAttachment(0)

    fmt.Println("NumAttachments after = ", email.NumAttachments())

    email.DisposeEmail()