Blazor -是否可以从MainLayout中触发页面组件中的函数

@inherits LayoutComponentBase

<button onclick="TriggerEvent">触发事件</button>

@code {
    public event Action OnEventTriggered;

    private void TriggerEvent()
    {
        OnEventTriggered?.Invoke();
    }
}

@inherits ComponentBase

<p>@message</p>

@code {
    private string message = "";

    protected override void OnInitialized()
    {
        (Parent as MainLayout)?.OnEventTriggered += HandleEvent;
    }

    private void HandleEvent()
    {
        message = "事件触发成功！";
        StateHasChanged();
    }
}

@inherits LayoutComponentBase

<button onclick="TriggerDelegate">触发委托</button>

@code {
    public Action OnDelegateTriggered;

    private void TriggerDelegate()
    {
        OnDelegateTriggered?.Invoke();
    }
}

@inherits ComponentBase

<p>@message</p>

@code {
    private string message = "";

    protected override void OnInitialized()
    {
        (Parent as MainLayout)?.OnDelegateTriggered += HandleDelegate;
    }

    private void HandleDelegate()
    {
        message = "委托触发成功！";
        StateHasChanged();
    }
}