ASP.NET：如何使复选框即使在提交后也始终处于未选中状态

发布于 2024-10-05 22:56:04 字数 419 浏览 6 评论 0原文

刚刚开始学习如何开发 ASP.NET 应用程序，我很困惑如何使复选框始终处于未选中状态，即使在提交用户勾选复选框的表单后也是如此。该复选框用于确认用户同意条款和条件...当表单提交返回一些错误时，我想在屏幕上显示错误消息并保持复选框处于未选中状态，无论是否选中。

在我看来，我有以下内容：

<%: Html.CheckBoxFor(m => m.UserAgreement) %>

我已经在我的控制器中尝试了以下两种方法，但都不起作用：

ViewData["UserAgreement"] = false;

return View(new MyModel { UserAgreement = false});

任何人都可以帮助如何实现我所需要的？谢谢。

原文

Just started learning how to develop a ASP.NET application, i am puzzled on how to make a checkbox is always unchecked even after form submit where a user tick the checkbox. The checkbox is for acknowledgment that user agrees to the terms and conditions ... and when form submit return some errors I want to display the error message on the screen and keep the checkbox unchecked regardless it was ticked or not.

In my view I have the following:

<%: Html.CheckBoxFor(m => m.UserAgreement) %>

And I have tried both the following in my controller and none of them works:

ViewData["UserAgreement"] = false;

return View(new MyModel { UserAgreement = false});

Anyone can help on how to achieve what I need? Thank you.

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紙鸢 2024-10-12 22:56:05

这也困扰了我很长一段时间，即使明确地将模型中的值设置为 false 也没有真正解决这个问题。我发现它还在检查 ModelState 集合中的值。

这可能不是最干净的解决方案，但这最终对我有用：

private ActionResult DisplayView(string viewName, MyModelClass model)
{
    model.AgreeTerms = false;
    ModelState.Remove("AgreeTerms");

    return View(viewName, model);
}

This bothered me for a long time as well, even explicity setting the values in my model to false did not really solve this problem. What I found was that it was also checking the value in the ModelState collection.

This is probably not the cleanest solution but this is ultimately what worked for me:

private ActionResult DisplayView(string viewName, MyModelClass model)
{
    model.AgreeTerms = false;
    ModelState.Remove("AgreeTerms");

    return View(viewName, model);
}

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