Is there a way to disable '@IBAction func button' until all text fields are full

I have four text-fields, and I want the '@IBAction button' to be disabled until all text-fields are full.

The usual way of doing this is as follows:

  1. Add @IBOutlets from your view controller to your four text fields and to your button.

  2. Set up your view controller to receive ‘text did change’ notifications.

  3. When it receives such a notification, your view controller validates the text fields and updates the enabled state of the button.

The exact mechanics of doing this vary by platform. As this is platform-specific stuff rather than language-specific stuff, I recommend that you post follow-up questions in a place dedicated to that platform. For example, if you’re working on iOS you can use the App Frameworks > Cocoa Touch topic area on DevForums.

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Quinn “The Eskimo!” @ DTS @ Apple

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