Question: How to require an argument only if another argument has specific value?

[BlackDragonBE]

For example:

I have this:

[ArgRequired(PromptIfMissing = false), ArgShortcut("u"), ArgDescription("Upload images to WordPress and replace links in files? (true/false)")]
public bool UploadImages { get; set; }

I want to have the following arguments to be required only when the above is true:

[ArgRequired(PromptIfMissing = true,If = "UploadImages"), ArgShortcut("user"), ArgDescription("Username")]
public string Username { get; set; }

[ArgRequired(PromptIfMissing = true,If = "UploadImages"), ArgShortcut("pw"), ArgDescription("Password")]
public string Password { get; set; }

Is there a way to do that? Something like ArgRequired(IfValueOf("UploadImages", "True")) would be ideal, but if there's another way, I'd love to hear it. Currently it prompts even if UploadImages is set to false.

Thanks in advance! Cheers

[adamabdelhamed]

You could implement a custom validator or a custom hook.