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Asked: 2026-05-23T23:41:32+00:00

I’m writing an application, The main purpose of the application is to be able

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I’m writing an application,

The main purpose of the application is to be able to rapidly send emails using one’s Gmail account (NOT reading emails, just sending).

I have a “GmailAccount” class which creates an SmtpClient object within its constructor using the user’s Username and Password. It also has a “Send” method which takes a MailMessage that is going to be built by my UI and passed over.

The problem I have, is that I would quite like to also poll Gmail’s contact list so that I can ‘autofill’ when the user is typing email addresses.

Should I split this class up, or should I also do this:

1) Download client contact list to disk

2) Have a keystroke method on my to/cc/bcc fields that for every char typed polls the GmailAccount.FindContact() method to see if there is a match?

3) If there’s a match, pass the full address over.

Thanks for the help!

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  1. Editorial Team

    It’s all about what’s appropriate to you, and how your (whole) application works.

    Personally, I’d have the contacts under GmailAccount, because the contacts are part of the Gmail account. You may disagree, and you are completely correct in doing so, because class design is something subjective.

    I’ve seen many class designs which have a single property and have class, which then has another class + one field in them. The author of that program may find it good to do so, but I would personally disagree with his class design. Thing is, we are both correct.

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