我有一个使用模态表单的Web应用程序来确认我的用户（或管理员）可能允许执行的一些操作。模态表单设置来自Microsoft的IdentitySampleApplication项目，并且与我的项目结合使用的方式大致相同。我正在使用通用模态形式。我试图允许用户在应用程序上拥有多个用户角色（而他们的示例假定用户只有一个角色。）
我现在正在努力删除此类型多角色方案的角色以进行维护。我应该指出，只涉及一个id的所有代码实例都可以正常工作，这是一个带有2个ID的实例，它无法通过我在控制器上需要的任何一个ID。
删除用户角色需要用户的密钥和角色。 我的控制器有一些像下面这样的代码来接受id并呈现一个模态形式，它的效果非常好。
[HttpGet]
public IActionResult DeleteUserRole( string userid, string roleid ){...}
HttpPost部分看起来像这样
[HttpPost]
public IActionResult DeleteUserRole( string userid, string roleid, IFormCollection form ){...}
然而，第二个动作永远不会获得传递给模态形式get方法的id。
在所有只有一个路由ID的方法中，我没有问题。只有这一种方法让我烦恼。我从这个链接中调用它。注意两个asp路由变量，我怀疑这是我的问题的核心，但是get调用很好，这是没有值的帖子：
<a id="deleteRoleModal" asp-action="DeleteUserRole"
asp-route-userid="@item.userId" asp-route-roleid="@item.roleId"
data-toggle="modal" data-target="#modal-action-role"
class="btn btn-sm btn-danger">
在表单底部我有一个模态表单实现，它看起来像这样：
@await Html.Partial( "_Modal", new BootstrapModel { ID = "modal-action-role", AreaLabeledId = "modal-action-role-label", Size = ModalSize.Medium } )
我的模态形式看起来很像IdentitySampleProject中使用的样本，并且在这里显示，它没有以任何有意义的方式改变，但单个参数回调可以正常工作：
@model string
@using MyModels
<form asp-action="DeleteUserRole" role="form">
@Html.AntiForgeryToken()
@await Html.Partial( "_ModalHeader", new ModalHeader { Heading = "Delete User Role" } )
<div class="modal-body form-horizontal">
Are you sure you want to delete user role @Model?
</div>
@await Html.Partial( "_ModalFooter", new ModalFooter { SubmitButtonText = "Delete" } )
</form>
我正在寻找解决问题的方向。我希望确实双路径ID是我的问题，但我似乎无法找到其他人在样本中做这样的事情。
生成的管理页面看起来大概如下：
<!DOCTYPE html>
<html>
<head>
<title>my company</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="/lib/bootstrap/dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="/lib/bootswatch/spacelab/bootstrap.min.css" />
<link rel="stylesheet" href="/lib/font-awesome/css/font-awesome.min.css" />
<link rel="stylesheet" href="/css/site.css" />
<link rel="stylesheet" href="/css/navTabs.css" />
<link rel="stylesheet" href="/css/partner.css" />
</head>
<body>
<div id="header">
<div class="slideContainer">
<div class="slide"><img src="/image/Firm-small2.jpg" alt="Offices" class="headerImage" /></div>
<div class="slide"><img src="/image/InLibrary225.jpg" alt="Library" class="headerImage"></div>
<div class="slide"><img src="/image/DSC_9999editSM.JPG" alt="Offices" class="headerImage" /></div>
<div class="slide"><img src="/image/DSC_9925edit2SM.JPG" alt="Computer Room" class="headerImage" /></div>
</div>
<nav class="navbar navbar-inverse">
<ul class="nav navbar-nav navbar-right ">
<li class="navtext">
<label>-- Welcome: Webmaster </label>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li class="navtext">
<label>Your Proven Partner in Cartoon Drawing</label>
</li>
</ul>
</nav>
</div>
<div id="sidebar">
<div><img src="/image/headerLogo.gif" alt="my company Logo" class="logoImage" /></div>
<nav id="menu">
<ul class="nav navbar-inverse">
<li><a href="/">Home</a></li>
<li>
<div id="menuGroupItem">
<a href="/Partners">Partners</a>
<a data-toggle="collapse" data-target="#partnerMenu"><i class="fa fa-chevron-down"></i></a>
</div>
<ul id="partnerMenu" class="nav collapse" role="menu" aria-labelledby="partnerMenu">
<li><a href="/Partners/PartnerBio/Eddy%20A%20Fish"><i class="fa fa-caret-right"></i> Eddy A Fish</a></li>
<li><a href="/Partners/PartnerBio/Tom%20A%20Hawk%20III"><i class="fa fa-caret-right"></i> Tom A Hawk</a></li>
</ul>
</li>
<li><a href="/App/OurServices">Services</a></li>
<li><a href="/Events/News">News</a></li>
<li><a href="/Events/Events">Events</a></li>
<li><a href="/Events/Pubs">Publications</a></li>
<li><a href="/App/FirmHistory">Firm History</a></li>
<li><a href="/App/Contact">Contact</a></li>
<li class="divider"></li>
<li><a href="/Auth">Manage Website</a></li>
<li><a href="/Auth/Logout">Logout</a></li>
</ul>
</nav>
<div class="affiliation">
<table>
<tr>
<td>
<img src="/image/WBE_color_rgb_UP25.jpg" alt="" class="affiliationImage" />
</td>
</tr>
</table>
</div>
<div>
<ul class="rightAlign">
<li> </li>
<li>my company</li>
<li>16 main street</li>
<li>anytown, pa 00000</li>
<li> </li>
<li>610.111.1111</li>
</ul>
</div>
</div>
<div id="wrapper">
<div id="main" class="container-fluid">
<div class="row">
<div class="col-md-8 col-md-offset-2">
<form action="/Users/UserRole/a2c77901-4a74-49aa-9354-1fadc943c8c4" method="post"><input id="UserId" name="UserId" type="hidden" value="a2c77901-4a74-49aa-9354-1fadc943c8c4" /><input id="UserName" name="UserName" type="hidden" value="BioEditor" /> <h3>Add roles for user: <span class="text-success">BioEditor</span></h3>
<div>
<div class="form-group">
<table class="table table-responsive">
<thead>
<th>Role</th>
<th>Action</th>
</thead>
<tbody>
<tr>
<td><i class="fa fa-check text-success"> </i>BioEditor</td>
<td>
<a id="deleteRoleModal" data-toggle="modal" data-target="#modal-action-role" class="btn btn-sm btn-danger" href="/Users/DeleteUserRole?userid=a2c77901-4a74-49aa-9354-1fadc943c8c4&roleid=8b12b24d-5836-46eb-a7aa-0be1818a67f5">
<i class="fa fa-trash"></i> Delete
</a>
</td>
</tr>
<tr>
<td><i class="fa fa-check text-success"> </i>PowerEditor</td>
<td>
<a id="deleteRoleModal" data-toggle="modal" data-target="#modal-action-role" class="btn btn-sm btn-danger" href="/Users/DeleteUserRole?userid=a2c77901-4a74-49aa-9354-1fadc943c8c4&roleid=c4f3bdf8-b880-423c-8de3-1e51329da104">
<i class="fa fa-trash"></i> Delete
</a>
</td>
</tr>
<tr>
<td><i class="fa fa-check text-success"> </i>Administrator</td>
<td>
<a id="deleteRoleModal" data-toggle="modal" data-target="#modal-action-role" class="btn btn-sm btn-danger" href="/Users/DeleteUserRole?userid=a2c77901-4a74-49aa-9354-1fadc943c8c4&roleid=f1aafc1e-0527-4542-8f0e-fb1afeccac46">
<i class="fa fa-trash"></i> Delete
</a>
</td>
</tr>
</tbody>
</table>
</div>
<div class="form-group">
<div class="input-group">
<select class="input-group form-control" data-val="true" data-val-required="The ApplicationRoleId field is required." id="ApplicationRoleId" name="ApplicationRoleId">
<option>Please select</option>
<option value="8b12b24d-5836-46eb-a7aa-0be1818a67f5">BioEditor</option>
<option value="c4f3bdf8-b880-423c-8de3-1e51329da104">PowerEditor</option>
<option value="f1aafc1e-0527-4542-8f0e-fb1afeccac46">Administrator</option>
<option value="fe77274d-4b16-46a6-8177-a84faf198c9b">EventEditor</option>
</select>
<span class="input-group-btn">
<button type="submit" class="btn btn-sm btn-success"><i class="fa fa-user"> </i> Add Selected Role </button>
</span>
<span class="field-validation-valid" data-valmsg-for="ApplicationRoleId" data-valmsg-replace="true"></span>
</div>
</div>
</div>
<input name="__RequestVerificationToken" type="hidden" value="CfDJ8KeASaIZMdBDjnZy_1CdaouczJ-zwxPaQp-N5OQ5bGWfYzVfpDz7_iC0VlJb_cRDkqucT-8ENFhsNPe9Rng1Mqrm9VQbYQoSQwerxj953ql4v7dABrW6pioEySOJN7qFXaalGYePyjHoB0QiKxfuvkvh938tJG4gVnh5D1JvLyNBBKlR4d25PcoJOJZTdN_Bxg" /></form> </div>
</div>
<div aria-hidden="true" aria-labelledby="modal-action-role-label" role="dialog" tabindex="-1" id="modal-action-role" class="modal fade">
<div class="modal-dialog ">
<div class="modal-content">
</div>
</div>
</div>
</div>
</div>
<div id="footer" class="container-fluid">
<div class="navbar navbar-fixed-bottom navbar-inverse ">
<ul>
<li class="navbar-link">© my company</li>
<li class="navbar-link text-muted"><a id="disclaimerLink" href="#">Disclaimer</a></li>
</ul>
</div>
</div>
<script type="text/javascript" src="/lib/jquery/dist/jquery.js"></script>
<script type="text/javascript" src="/lib/bootstrap/dist/js/bootstrap.min.js"></script>
<script src="/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
<script type="text/javascript" src="/js/site.js"></script>
</body>
</html>
感谢您提供的任何指示，肯特
答案 0 :(得分：1)
这正是寻找问题的正确方向，感谢艾哈迈尔。由于传递给控制器的2个ID导致数据被包装在查询字符串中而不是真实的路径{controller} {action} {id}。
模态不会将查询字符串传递给最终版本，因此我更改了模型并将模式形式的值包装起来以进行最终删除，这一切都有效。感谢您提出正确的问题以获得答案。