Save a Related Item to Disk

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Demonstrates the Chilkat Email.SaveRelatedItem method, which saves the related item at a given zero-based index to a directory. If the directory or any of its components do not exist, Chilkat creates them. This example adds a related style sheet and saves it.

Background: Related items are the inline resources (images, style sheets) an HTML email carries in its multipart/related enclosure. SaveRelatedItem writes one of them out as a file — a building block for tasks like extracting a specific embedded image, or manually unpacking a message when you want finer control than the all-in-one UnpackHtml / AspUnpack methods provide.

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bool success = false;

//  Demonstrates the SaveRelatedItem method, which saves the related item at a given
//  zero-based index to a directory.  If the directory (or any of its components) does not
//  exist, Chilkat creates it.

Chilkat.Email email = new Chilkat.Email();
email.Subject = "Save a related item";

//  Set an HTML body that references a related style sheet by name.
email.SetHtmlBody("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");
email.AddRelatedString2("styles.css","body { color: navy; }","utf-8");

//  Save the related item at index 0 into the specified directory.
success = email.SaveRelatedItem(0,"qa_output/related");
if (success == false) {
    Debug.WriteLine(email.LastErrorText);
    return;
}

Debug.WriteLine("Saved related item 0.");

//  Note: The path "qa_output/..." is a relative local filesystem path,
//  relative to the current working directory of the running application.