GHWizard.UserInputForm.EnableOrDisableContinue C# (CSharp) Method

        private void EnableOrDisableContinue()
        {
            finish.Enabled =
            IsTextBoxAllRight(addondisplayname) && IsTextBoxAllRight(componentClassName) &&
            File.Exists(rhinoExepath.Text)&&
            File.Exists(rhinocommonPath.Text) &&
            File.Exists(grasshopperPath.Text);
        }