如何有条件地重定向到基于ASP.NET核心剃刀页面中的单选按钮选择的页面？

<form method="post" action="/RedirectPage">
    <input type="radio" name="page" value="page1"> Page 1
    <input type="radio" name="page" value="page2"> Page 2
    <input type="radio" name="page" value="page3"> Page 3
    <button type="submit">Submit</button>
</form>

[HttpPost]
public IActionResult RedirectPage(string page)
{
    if (page == "page1")
    {
        return RedirectToPage("/Page1");
    }
    else if (page == "page2")
    {
        return RedirectToPage("/Page2");
    }
    else if (page == "page3")
    {
        return RedirectToPage("/Page3");
    }
    else
    {
        // 处理无效的选择
        return RedirectToAction("/InvalidSelection");
    }
}