public override bool SendAction(Selector theAction, NSObject theTarget, NSObject sender)
        {
            if (theAction == null)
            {
                return(false);
            }

            if (base.SendAction(theAction, theTarget, sender))
            {
                return(true);
            }

            // FIXME
            // The following code should not be necessary, it should have been done by base. What am I missing?
            // It's here to make autocompletion work properly:
            // Without this, double clicking a word in a completion list of a text field (initial wizard) does not work.

            if (theAction.Name == "tableAction:")             // Prevent crashes when used with certain other selectors.
            {
                if (theTarget != null && theTarget.RespondsToSelector(theAction))
                {
                    try
                    {
                        var signature  = theTarget.GetMethodSignature(theAction);
                        var invocation = signature.ToInvocation();
                        invocation.Selector = theAction;
                        if (signature.NumberOfArguments > 2)
                        {
                            invocation.SetArgument(sender, 2);
                        }
                        invocation.Invoke(theTarget);
                        return(true);
                    }
                    catch (Exception e)
                    {
                        Console.WriteLine($"Exception in invocation of '{theAction.Name}':{e}");
                    }
                }
            }
            return(false);
        }