I need to do some validation of the input data in an installer pane, but I don't want the user to have to click any type of validate button. it's also an expensive operation, so I only want to do it once, thus in willExitPane. However, if it fails, then I don't want them to have actually moved onto the next screen. Due to the reasons listed I can't put this in shouldExitPane: Is there a way inside of willExitPane: to actually stop the pane from being left? _______________________________________________ Do not post admin requests to the list. They will be ignored. Installer-dev mailing list (Installer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/installer-dev/site_archiver%40lists.... This email sent to site_archiver@lists.apple.com