ASPNET MVC 5 HTML帮助程序动作方法视图结果输入ID缺失(有时..)可能的错误? [英] ASPNET MVC 5 Html helper Action method view results input id missing (sometimes..) Possible Bug?

问题描述

要重现此问题，我设置了两个简单的控制器操作，两个视图和一个视图模型:

To recreate the issue I'm having I've set up two simple controller actions, two views and a view model:

MultiForms Action(在表单控制器类中)

public class FormController : Controller
{
    [HttpGet]
    public ActionResult MultiForms()
    {
        return View("MultiForms");
    }

    // ...

MultiForms.cshtml-剃刀视图

@Html.Action("MyFormGet", "Form")

关于action方法的通知，我调用了控制器方法，该方法返回了窗体局部视图.

Notice in the action method I call the controller method that returns the form partial view.

MyFormGet操作

[HttpGet]
public PartialViewResult MyFormGet()
{
    var viewModel = new MyFormViewModel();
    ViewData.TemplateInfo.HtmlFieldPrefix = Guid.NewGuid().ToString().Replace("-", "_");
    return PartialView("MyForm", viewModel);
}

查看模型

public class MyFormViewModel
{
    public string TextInput1 { get; set; }
}

MyForm.cshtml-剃刀视图

@model Mvc5App.Controllers.MyFormViewModel

@using (Html.BeginForm("MyFormPost", "Form", FormMethod.Post))
{
    <br />
    @Html.TextBoxFor(m => m.TextInput1)
}

当我将浏览器指向/Form/MultiForms时，我会得到预期的输出:

When I point my browser at /Form/MultiForms I get the output I expect:

<input type="text" value="" name="e166fa0d_46fe_40d4_a970_73c52a35f224.TextInput1" id="e166fa0d_46fe_40d4_a970_73c52a35f224_TextInput1">

然后刷新页面，输出结果如下:

Then I refresh the page and the output becomes this:

<input type="text" value="" name="48edc339_69ad_4b9b_9583_198038beab45.TextInput1">

id属性在哪里?这是ASPNET MVC5中的错误，还是该设置做错了什么?

Where did the id attribute go? Is this a bug in ASPNET MVC5 or have I done something wrong with this setup?

推荐答案

感谢@ 演示我想我明白了当ID不显示时...

Thanks to @demo I think I figured out when the id doesn't show up...

如果ID以数字(或下划线)开头，则不会呈现.因此，此GUID将呈现:

If the id starts with a digit(or underscore) it will not render. So this GUID will render:

f3b1a447_3786_4472_9dfe_14c3ae8aae24

但是这个不会:

1c26ce3d_5c71_408a_aae2_7be414f1d383

上述解决方案的前缀似乎是这样的:

The solution for the above seems to be prefixing with something like this:

FOO_1c26ce3d_5c71_408a_aae2_7be414f1d383

问题就消失了.

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