void PerformChangeName(string name)
    {
        message       = "Changing group name...";
        ButtonEnabled = false;

        currentGroup.ChangeName(name, (KiiGroup group, Exception e) =>
        {
            ButtonEnabled = true;
            if (e != null)
            {
                message = "Failed to change group name " + e.ToString();
                return;
            }
            message = "Change group name succeeded";
        });
    }