我已多次尝试获取包含正确POST列表的复杂对象。除列表对象外的所有属性在发布时都包含值。我的方法基于SO Q&A和SO Q&A。但是，在这两种情况下，解决方案是使用for循环而不是foreach循环。我正在使用推荐的for循环，但仍然有问题。我不确定在发布时还有什么可能导致列表为空。在此先感谢您的帮助！
查看：
@model PropertiesAdminSite.Models.UtilityData
@{
ViewBag.Title = "CreateNewCycle";
}
<h2>New Residence Utilities</h2>
@using (Html.BeginForm("Upload", "ImportWater", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.AntiForgeryToken()
<div class="control-group">
@Html.TextBoxFor(m => m.UploadFile, new { type = "file"})
</div>
<div class="control-group">
<input type="submit" class="btn btn-info" value="Upload" />
</div>
<div class="col-lg-12 visible-lg">
<br>
<span style="color:green">@ViewBag.Message</span>
@Html.HiddenFor(model => model.bID)
@Html.HiddenFor(model => model.bEntryDate)
@Html.HiddenFor(model => model.bPrevDate)
@for (int i = 0; i < Model.utilData.Count(); i++)
{
@Html.HiddenFor(model => model.utilData[i].ResNumber)
@Html.HiddenFor(model => model.utilData[i].GrnLower)
@Html.HiddenFor(model => model.utilData[i].GrnUpper)
@Html.HiddenFor(model => model.utilData[i].prevWaterReading)
@Html.HiddenFor(model => model.utilData[i].rID)
@Html.HiddenFor(model => model.utilData[i].WaterReading)
@Html.HiddenFor(model => model.utilData[i].wDifference)
@Html.HiddenFor(model => model.utilData[i].YelLower)
@Html.HiddenFor(model => model.utilData[i].YelUpper)
}
</div>
}
@using (Html.BeginForm("IndexMulti", "Utilities", FormMethod.Post))
{
@Html.AntiForgeryToken()
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="row">
<div class="col-lg-12">
<div class="panel panel-default">
<div class="panel-heading">
@Html.LabelFor(model => model.bEntryDate, htmlAttributes: new { @class = "control-label col-md-1" })
@Html.DisplayFor(model => model.bEntryDate)
@Html.HiddenFor(model => model.bID)
@Html.HiddenFor(model => model.bEntryDate)
@Html.HiddenFor(model => model.bPrevDate)
</div>
<!-- /.panel-heading -->
<div class="panel-body">
<div class="dataTable_wrapper">
<!--div id="dataTables-example_wrapper" class="dataTables_wrapper form-inline dt-bootstrap no-footer">-->
<div class="row">
<div class="col-sm-12">
<table class="table table-striped table-bordered table-hover dataTable no-footer" id="dataTables-Bills" role="grid" aria-describedby="dataTables-example_info">
<!-- /table headers-->
<thead>
<tr role="row">
<th>@Html.DisplayNameFor(model => model.utilData.First().ResNumber)</th>
<th>@Html.DisplayNameFor(model => model.utilData.First().WaterReading)</th>
<th>
@Html.DisplayNameFor(model => model.utilData.First().prevWaterReading)
@Html.DisplayFor(model => model.bPrevDate)
</th>
<th>@Html.DisplayNameFor(model => model.utilData.First().wDifference)</th>
<th>Actions</th>
</tr>
</thead>
<!-- /table body-->
<tbody>
@for (int i = 0; i < Model.utilData.Count(); i++)
{
<tr role="row">
<td>
@Html.DisplayFor(modelItem => modelItem.utilData[i].ResNumber)
@Html.HiddenFor(model => model.utilData[i].GrnLower)
@Html.HiddenFor(model => model.utilData[i].GrnUpper)
@Html.HiddenFor(model => model.utilData[i].YelLower)
@Html.HiddenFor(model => model.utilData[i].YelUpper)
</td>
<td>
@Html.EditorFor(model => model.utilData[i].WaterReading)
</td>
<td>
<span id="@string.Format("prevWater_{0}",Model.utilData[i].rID)">
@Html.DisplayFor(model => model.utilData[i].prevWaterReading)
</span>
@Html.HiddenFor(model => model.utilData[i].prevWaterReading)
</td>
<td>
<span id="@string.Format("hdifference_{0}",Model.utilData[i].rID)">
@Html.DisplayFor(model => model.utilData[i].wDifference)
</span>
@Html.HiddenFor(model => model.utilData[i].prevWaterReading)
</td>
<td>
@Html.ActionLink("View History", "ExportDataIndex", "ExportData", new { rID = Model.utilData[i].rID, bId = Model.bID }, null) |
<a href="@Url.Action("ExportToExcel", "ExportData", new { rID = Model.utilData[i].rID, bId = Model.bID })" class="btn btn-success">
<i class="fa fa-file-excel-o" aria-hidden="true" title="Export to Excel"></i>
</a> |
<a href="@Url.Action("ChartData", "Utilities", new { rID = Model.utilData[i].rID, bId = Model.bID })" class="btn btn-info">
<i class="fa fa-bar-chart" aria-hidden="true" title="Water Usage History"></i>
</a>
</td>
</tr>
}
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-offset-0 col-md-8">
<input type="submit" value="Submit Water Readings and Create Invoices" class="btn btn-primary btn-lg btn-block" />
</div>
</div>
}
型号：
public partial class UtilityData
{
public DateTime bEntryDate { get; set; }
public string bPrevDate { get; set; }
public int bID { get; set; }
//public int residenceCount { get; set; }
public List<UtilEntry> utilData { get; set; }
public HttpPostedFileBase UploadFile { get; set; }
}
public partial class UtilEntry
{
public int rID { get; set; }
public long? WaterReading { get; set; }
public int ResNumber { get; set; }
public long? prevWaterReading { get; set; }
public decimal wDifference { get; set; }
public int GrnUpper { get; set; }
public int GrnLower { get; set; }
public int YelUpper { get; set; }
public int YelLower { get; set; }
}
控制器：
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult IndexMulti([Bind(Include = "bEntryDate, bPrevDate,bID,uData")] UtilityData uData)
{
if (ModelState.IsValid)
{
Omitted for clarity
}
return RedirectToAction("Create", "TenantAccount", new { id = uData.bID});
}
答案 0 :(得分：0)
Per @Stephen Muecke我在IndexMulti Binding中输入了一个拼写错误：
public ActionResult IndexMulti([Bind(Include = "bEntryDate, bPrevDate,bID,utilData")] UtilityData uData)
utilData最初是udata。