Blazor弹出窗口

@page "/"

<div>
<p>Output: @message</p>
<button onclick="document.getElementById('my-dialog').showModal()">
Show modal dialog
</button>
<dialog id="my-dialog" @onclose="OnClose" @oncancel="OnCancel">
<p>Blazor真不错，欢迎使用!</p>
<form method="dialog">
<button>Close</button>
</form>
</dialog>
</div>
@code {
private string? message;
private void OnClose(EventArgs e) => message += "onclose, ";
private void OnCancel(EventArgs e) => message += "oncancel, ";
}