我正在尝试获取控制器操作方法中的复选框值，但它在任何一种情况下都会给我默认的false值，请您告诉我如何获取实际的复选框值？
Index.cshtml
@model ORES.ViewModels.FormRightsViewModel
@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<div class="content-wrapper">
<!-- Content Header (Page header) -->
<section class="content-header">
<h1>
Form Role Rights Management
<small>Role Rights Matrix</small>
</h1>
<ol class="breadcrumb">
<li><a href="#"><i class="fa fa-dashboard"></i> Home</a></li>
<li><a href="#">Forms</a></li>
<li class="active">General Elements</li>
</ol>
</section>
<!-- Main content -->
<section class="content">
<div class="row">
<!-- right column -->
<div class="col-md-12">
<!-- Horizontal Form -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">Form RoleRights</h3>
</div><!-- /.box-header -->
<!-- form start -->
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="box-body">
<div class="form-group">
@Html.LabelFor(model => model.Roles, htmlAttributes: new { @class = "col-sm-2 control-label" })
<div class="col-sm-10">
@Html.DropDownListFor(model => model.SelectRoleID, Model.Roles, "Select a Role", new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.SelectRoleID, "", new { @class = "text-danger" })
</div>
</div>
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>@Html.DisplayName("Form ID")</th>
<th>@Html.DisplayName("Form Name")</th>
<th>@Html.DisplayName("Has Rights")</th>
</tr>
</thead>
<tbody>
@foreach (var item in Model.Collection)
{
<tr>
<td>@Html.DisplayFor(modelItem => item.FormID)</td>
<td>@Html.DisplayFor(modelItem => item.FormName)</td>
<td>@Html.CheckBoxFor(modelItem => item.HasRights)</td>
</tr>
}
</tbody>
</table>
</div><!-- /.box-body -->
<div class="box-footer">
<button type="submit" class="btn btn-primary pull-right">Update RoleRight Matrix</button>
</div><!-- /.box-footer -->
</div>
}
</div><!-- /.box -->
</div><!--/.col (right) -->
</div> <!-- /.row -->
</section><!-- /.content -->
</div>
控制器：
[HttpPost]
public ActionResult Index(ViewModels.FormRightsViewModel formRightMatrix)
{
if (formRightMatrix != null &&
formRightMatrix.Collection != null &&
formRightMatrix.Collection.Count() > 0)
{
foreach (var item in formRightMatrix.Collection)
{
BusinessObjectLayer.RolesRightsManagement roleRights = new BusinessObjectLayer.RolesRightsManagement();
BusinessLogicLayer.RoleRightsBLL roleRightsBLL = new BusinessLogicLayer.RoleRightsBLL();
if (roleRightsBLL.CheckExistancebyFormIdAndRoleId(item.FormID, formRightMatrix.SelectRoleID,ref roleRights))
{
roleRights.IsView = item.HasRights;
roleRights.ModifiedBy = BusinessLogicLayer.ORESHelper.GetCurrentUsername();
roleRights.ModifiedOn = DateTime.Now;
roleRightsBLL.Update(roleRights);
}
else
{
roleRights.FormId = item.FormID;
roleRights.CreatedBy = BusinessLogicLayer.ORESHelper.GetCurrentUsername();
roleRights.CreatedOn = DateTime.Now;
roleRights.RoleId = formRightMatrix.SelectRoleID;
roleRights.IsView = item.HasRights;
roleRightsBLL.Create(roleRights);
}
}
RedirectToAction("Index");
}
return View(formRightMatrix);
}
型号：
public class FormRightsViewModel
{
BusinessLogicLayer.FormBLL formBll = new BusinessLogicLayer.FormBLL();
[System.ComponentModel.DataAnnotations.Display(Name = "Roles:")]
public System.Web.Mvc.SelectList Roles
{
get
{
return new System.Web.Mvc.SelectList(new BusinessLogicLayer.RoleBLL().GetAllRoles(), "ROLEID", "ROLE1");
}
}
[System.ComponentModel.DataAnnotations.Required(ErrorMessage="Please Select Role!")]
public int SelectRoleID { get; set; }
private FormCollection _Collection;
public FormCollection Collection
{
get
{
this._Collection = new FormCollection();
IEnumerable<BusinessObjectLayer.Form> forms = formBll.GetAllForms();
if (forms != null && forms.Count() > 0)
{
foreach (var form in forms)
{
this._Collection.Add(new FormRoleRights { FormID = form.FormId, FormName = form.FormName });
}
}
return this._Collection;
}
}
}
public class FormCollection : List<FormRoleRights>
{
public FormCollection()
: base()
{
}
public FormCollection(int capacity)
: base(capacity)
{
}
public FormCollection(IEnumerable<FormRoleRights> collection)
: base(collection)
{
}
}
public class FormRoleRights
{
[System.ComponentModel.DataAnnotations.Display(Name = "Form Name")]
public string FormName { get; set; }
[System.ComponentModel.DataAnnotations.Display(Name = "Form ID")]
public int FormID { get; set; }
[System.ComponentModel.DataAnnotations.Display(Name = "Has Rights")]
public bool HasRights { get; set; }
}
答案 0 :(得分：1)
我认为你的最终问题 - 在所有其他更正后，Collection没有Set方法（在FormRightsViewModel.Collection上）。因此，每次检查或阅读时，都会重置值。
这是在您更正模型绑定之后。
要更正模型绑定，请使用编辑器进行操作。请参阅下面的EditorFor模型绑定解决方案。
我添加了模板
/Shared/EditorTemplates/FormRoleRights.cshtml
@model ViewModels.FormRoleRights
<tr>
<td>@Html.DisplayFor(modelItem => Model.FormID)</td>
<td>@Html.DisplayFor(modelItem => Model.FormName)</td>
<td>@Html.CheckBoxFor(modelItem => Model.HasRights)</td>
@Html.HiddenFor(model => Model.FormID)
</tr>
并使用表格中的EditorFor模板确保在rendnering
期间正确编制索引<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>@Html.DisplayName("Form ID")</th>
<th>@Html.DisplayName("Form Name")</th>
<th>@Html.DisplayName("Has Rights")</th>
</tr>
</thead>
<tbody>
@Html.EditorFor(t => Model)
</tbody>
</table>
当我这样做时，渲染的html看起来像
<form action="/Home/Index2" method="post"><input name="__RequestVerificationToken" type="hidden" value="CfDJ8IaY0wQy35JJvYSI6dpCxHJD6r_ijx_dc8VYTJzN1b95J0SMT7te3cR-H39qMhlrVQb82J8m0Z5D9SNbd6kf0O-X2yYrTuN01OAt4rxk9B8vM44_JwQUFjCWCZqI44gLSnuJnurApCRGQ_qcwa4LJZE"> <div class="form-horizontal">
<div class="box-body">
<div class="form-group">
<label class="col-sm-2 control-label" for="Roles">Roles:</label>
<div class="col-sm-10">
<select class="form-control" data-val="true" data-val-required="Please Select Role!" id="SelectRoleID" name="SelectRoleID"><option value="">Select a Role</option>
<option value="1">Write Role</option>
<option value="2">Read Role</option>
</select>
<span class="field-validation-valid text-danger" data-valmsg-for="SelectRoleID" data-valmsg-replace="true"></span>
</div>
</div>
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>Form ID</th>
<th>Form Name</th>
<th>Has Rights</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>A Test Form</td>
<td><input data-val="true" data-val-required="The Has Rights field is required." id="Collection_0__HasRights" name="Collection[0].HasRights" type="checkbox" value="true"></td>
<input data-val="true" data-val-required="The Form ID field is required." id="Collection_0__FormID" name="Collection[0].FormID" type="hidden" value="1">
</tr><tr>
<td>2</td>
<td>Another Test Form</td>
<td><input data-val="true" data-val-required="The Has Rights field is required." id="Collection_1__HasRights" name="Collection[1].HasRights" type="checkbox" value="true"></td>
<input data-val="true" data-val-required="The Form ID field is required." id="Collection_1__FormID" name="Collection[1].FormID" type="hidden" value="2">
</tr>
</tbody>
</table>
</div><!-- /.box-body -->
<div class="box-footer">
<button type="submit" class="btn btn-primary pull-right">Update RoleRight Matrix</button>
</div><!-- /.box-footer -->
</div>
<input name="Collection[0].HasRights" type="hidden" value="false"><input name="Collection[1].HasRights" type="hidden" value="false"></form>
注意FormID和HasRights属性的索引 名称绑定类似于Collection [0] .FormID
然后我更改了帖子签名以便于调试
Index (ViewModels.FormRightsViewModel formRightMatrix, FormRoleRights[] Collection)
Collection属性绑定正常，并显示带有true和false值的复选框。
简化以查明绑定问题....
public IActionResult Index3()
{
var form = new FormRoleRights()
{
FormID = 1,
FormName = "A Test Form"
};
var form2 = new FormRoleRights()
{
FormID = 2,
FormName = "Another Test Form"
};
var model = new FormCollection()
{
form, form2
};
return View(model);
}
[HttpPost]
public IActionResult Index3(FormCollection fc)
{
return Json(fc);
}
Index3.cshtml
@model ViewModels.FormCollection
@{
ViewData["Title"] = "Home Page";
}
@using (Html.BeginForm())
{
<div class="box-body">
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>@Html.DisplayName("Form ID")</th>
<th>@Html.DisplayName("Form Name")</th>
<th>@Html.DisplayName("Has Rights")</th>
</tr>
</thead>
<tbody>
@Html.EditorFor(t => Model)
</tbody>
</table>
</div><!-- /.box-body -->
<div class="box-footer">
<button type="submit" class="btn btn-primary pull-right">Update RoleRight Matrix</button>
</div><!-- /.box-footer -->
}
/Shared/EditorTemplates/FormRoleRights.cshtml
@model ViewModels.FormRoleRights
<tr>
<td>@Html.DisplayFor(modelItem => Model.FormID)</td>
<td>@Html.DisplayFor(modelItem => Model.FormName)</td>
<td>@Html.CheckBoxFor(modelItem => Model.HasRights)</td>
@Html.HiddenFor(model => Model.FormID)
</tr>