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Editorial Team
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Asked: 2026-06-05T09:40:00+00:00

I have to write a FTP (AUTH TSL) framework in C#. I’m a noob

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I have to write a FTP (AUTH TSL) framework in C#. I’m a noob at writing frameworks.
E.g. when I prove that a file exists and it doesn’t, what should I do?

  • Throwing a Exception for the programmer that uses the framwork?
  • Printing a ExceptionMessage (Console.WriteLine()) without throwing a
    Exception?

What is professional in this case?

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1 Answer

  1. Editorial Team

    Broad question actually, but there are some clues to get you on the way:

    1. Never use Console.WriteLine() or any stuff like that in a framework.
    2. For methods like Framework.FileExists, if file doesn’t exist, simply return false value. That’s the true nature of the Boolean return value. That’s more semantic.
    3. For operations that encounter problems, throw a custom, or predefined exception. For example, if you need an argument and you want to get sure that no null has been passed to your method, then simply check the argument in your method’s body and if it’s null, throw ArgumentNullException.
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