如何在xaml devexpress中使用commandparameter超链接调用命令？

Question

我有像bellow这样的超链接，我通过点击超链接尝试调用命令！

<Hyperlink Command="{Binding ResidentChangeCommand}"
               CommandParameter="ChangeMaritalStatus">
                    <TextBlock Text="history" />
                </Hyperlink>
    private ICommand _residentChangeCommand;
    public ICommand ResidentChangeCommand {
        get {
            return _residentChangeCommand ?? (_residentChangeCommand = new          DelegateCommand<object>(OnResidentChange));
        }
    }

    public void OnResidentChange(object obj) {
        WindowResidentCard window = new WindowResidentCard(obj.ToString());
        window.ShowDialog();
    }

但没有任何反应！什么问题???有任何想法吗！谢的!!!