如何在Blazor服务器应用程序中渲染父子行跨越HTML表？

<div>
    <button @onclick="ToggleChildRows">展开/折叠子行</button>
    <table>
        <thead>
            <tr>
                <th>列1</th>
                <th>列2</th>
                <th>列3</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>父行数据1</td>
                <td>父行数据2</td>
                <td>父行数据3</td>
            </tr>
            @if (showChildRows)
            {
                <tr>
                    <td colspan="3">
                        <ChildRow />
                    </td>
                </tr>
            }
        </tbody>
    </table>
</div>

@code {
    private bool showChildRows = false;

    private void ToggleChildRows()
    {
        showChildRows = !showChildRows;
    }
}

<table>
    <thead>
        <tr>
            <th>子行列1</th>
            <th>子行列2</th>
            <th>子行列3</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>子行数据1</td>
            <td>子行数据2</td>
            <td>子行数据3</td>
        </tr>
    </tbody>
</table>

@page "/example"

<ParentRow />