根据Blazor中子组件中的事件显示组件

<!-- Counter.razor -->
<h3>Counter</h3>

<p>Current count: @currentCount</p>

<button @onclick="IncrementCount">Click me</button>

@code {
    private int currentCount = 0;

    private void IncrementCount()
    {
        currentCount++;
        OnCountIncremented?.Invoke(currentCount);
    }

    public event Action<int> OnCountIncremented;
}

<!-- Index.razor -->
<h1>Counter Example</h1>

<Counter OnCountIncremented="HandleCountIncremented" />

@code {
    private void HandleCountIncremented(int count)
    {
        // 处理计数增加的事件
        Console.WriteLine($"Count incremented to {count}");
    }
}

<!-- Index.razor -->
<h1>Counter Example</h1>

<Counter OnCountIncremented="HandleCountIncremented" />

@code {
    private void HandleCountIncremented(int count)
    {
        Console.WriteLine($"Count incremented to {count}");
    }
}

<!-- Counter.razor -->
<h3>Counter</h3>

<p>Current count: @currentCount</p>

<button @onclick="IncrementCount">Click me</button>

@code {
    private int currentCount = 0;

    private void IncrementCount()
    {
        currentCount++;
        OnCountIncremented?.Invoke(currentCount);
    }

    public event Action<int> OnCountIncremented;
}