Blazor 监听键盘输入，并显示!

Blazor 监听键盘输入，并显示!

我希望能够在不使用 Blazor 中的 HTML INPUT 标记的情况下捕获键盘输入。

@page "/test"
<table @ref="testRef" tabindex="0" @onkeydown="HandleKeyDown">
    <thead>
        <tr>
            <th>
                Pressed Key
            </th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>
                @pressedKey
            </td>
        </tr>
    </tbody>
</table>
<h1 @ref="testRef" tabindex="0" @onkeydown="HandleKeyDown">@pressedKey</h1>

@code {

    private ElementReference testRef;
    private string pressedKey;

    private void HandleKeyDown(KeyboardEventArgs e)
    {
        pressedKey += e.Key;
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            await testRef.FocusAsync();
        }
    }
    }