提问人：ATA 提问时间：10/26/2023 最后编辑：mamad2559ATA 更新时间：10/31/2023 访问量：78
Asp.net Core 我无法从表单发送多个数据
Asp.net Core I can't send Multiple data from form
问：
我必须表员工电脑
我创建了 RelationShip M：M 并创建了 ViewModelEmployeePcEmployePCVWModel
从视图发送到控制器发送数据时出现的问题 不只是员工来了，而是PC不来了
查看此“我的代码”
@model ITProject.ViewModels.EmployePCVWModel
<br />
<br />
<div class="content-wrapper" style="min-height: 1203.31px;">
<!-- Main content -->
<section class="content">
<div class="row">
<div class="col-xs-6 col-sm-8 col-md-6 col-lg-12">
<!-- /.card -->
<div class="card border-secondary mb-3">
<div class="card-header">
<h5 class="page-title"> Assign PC \ Laptop</h5>
</div>
<form class="forms-sample" method="post" enctype="multipart/form-data"
asp-controller="EmployeePc" asp-action="Save" role="form">
<div class="row">
<div class="col-md-5 grid-margin stretch-card">
<div class="card-body">
@* <input asp-for="ItemId" type="hidden" />
<input asp-for="CreatedBy" type="hidden" />
<input asp-for="CreatedDate" type="hidden" />
<input asp-for="CurrentState" type="hidden" />
<input asp-for="ImageName" type="hidden" />*@
<div class="col-md-6 sm-3">
<img src="@string.Format("/Uploads/Employee/{0}",Model.TBEmployee?.EmployeeImage)"
class="w3-card-4" alt="Person"
height="110" width="100"
asp-append-version="true" />
<br />
<label>Number :</label>
<input type="hidden" asp-for="TBEmployee!.EmployeeId" /> @* لحل مشكلة ان ال اي دي لا يساوى 0 عند التعديل*@
<input type="text" readonly="readonly" asp-for="TBEmployee!.EmployeeNumber" class="form-control col-md-6 sm-3">
<span class="label danger alert-danger" asp-validation-for="TBEmployee!.EmployeeNumber"></span>
</div>
<div class="row col-lg-8 md-7 sm-3">
<label class="m-2">Name :</label>
<input type="text" readonly="readonly" asp-for="TBEmployee!.EmployeeName" class="form-control">
<span class="label danger alert-danger" asp-validation-for="TBEmployee!.EmployeeName"></span>
</div>
</div>
</div>
@* ////////////////LapTop////////////////*@
<div class="col-md-7">
<div class="card-body">
<h4 class="card-title">Device Specification</h4>
<br /><br />
<div class="row">
<div>
<table class="table table-bordered table-striped dataTable dtr-inline"
style="overflow-y:scroll" role="grid">
<thead>
<tr role="row">
<th class="sorting_asc text-center">Pc ID</th>
<th class="sorting_asc text-center">Pc Model</th>
<th class="sorting text-center">Serial \ Mac address</th>
<th class="sorting text-center">Actions</th>
</thead>
<tbody>
@foreach (var pc in Model.TBPc)
{
<tr>
@*<input type="hidden" asp-for="@pc.Id" />*@
<td class="text-center">@pc.PcId</td>
<td class="text-center">@pc.PcName</td>
<td class="text-center">@pc.PcSerial</td>
<td class="text-center">
@* <a asp-action="Save" asp-route-id="@pc.PcId" class="btn btn-outline-success bi bi-plus"></a>
*@
<input class="form-check-input" id="@pc.PcId" type="checkbox" value="@pc.PcId">
</td>
</tr>
}
</tbody>
</table>
</div>
<br />
<button style='margin-right:86px; width:150px;' type="submit" class="btn btn-outline-success">@ViewBag.ButtonName</button>
<a asp-controller="EmployeePc" asp-action="List" style="width:100px;" class="btn btn-outline-danger"> Back </a>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
这辆大众汽车
此控制器 当数据来时
TBPc 归 null
请提供任何帮助
我希望数据进入控制器
答：
1赞
Ronaldoz
10/27/2023
#1
由于您是从窗体发送模型，因此请尝试使用 HtmlHelper。
@using （Html.BeginForm（“Save”， “EmployeePc”， FormMethod.Post）） { for （var i = 0; i < @Model.PC.Count; i++） { @Html.HiddenFor（m => m.PC[i].PCName） @Html.DisplayName（@Model.PC[i].PCName）
@Html.TextBoxFor（m => m.PC[i].PCId， new { htmlAttributes = new { @type = “number”， @min = 0} }）
}
}
在您的视图中
<section class="content">
<div class="row">
<div class="col-xs-6 col-sm-8 col-md-6 col-lg-12">
<!-- /.card -->
<div class="card border-secondary mb-3">
<div class="card-header">
<h5 class="page-title"> Assign PC \ Laptop</h5>
</div>
<form class="forms-sample" method="post" enctype="multipart/form-data"
asp-controller="EmployeePc" asp-action="Save" role="form">
<div class="row">
<div class="col-md-5 grid-margin stretch-card">
<div class="card-body">
@* <input asp-for="ItemId" type="hidden" />
<input asp-for="CreatedBy" type="hidden" />
<input asp-for="CreatedDate" type="hidden" />
<input asp-for="CurrentState" type="hidden" />
<input asp-for="ImageName" type="hidden" />*@
<div class="col-md-6 sm-3">
<img src="@string.Format("/Uploads/Employee/{0}",Model.TBEmployee?.EmployeeImage)"
class="w3-card-4" alt="Person"
height="110" width="100"
asp-append-version="true" />
<br />
<label>Number :</label>
<input type="hidden" asp-for="TBEmployee!.EmployeeId" /> @* لحل مشكلة ان ال اي دي لا يساوى 0 عند التعديل*@
<input type="text" readonly="readonly" asp-for="TBEmployee!.EmployeeNumber" class="form-control col-md-6 sm-3">
<span class="label danger alert-danger" asp-validation-for="TBEmployee!.EmployeeNumber"></span>
</div>
<div class="row col-lg-8 md-7 sm-3">
<label class="m-2">Name :</label>
<input type="text" readonly="readonly" asp-for="TBEmployee!.EmployeeName" class="form-control">
<span class="label danger alert-danger" asp-validation-for="TBEmployee!.EmployeeName"></span>
</div>
</div>
</div>
@* ////////////////LapTop////////////////*@
<div class="col-md-7">
<div class="card-body">
<h4 class="card-title">Device Specification</h4>
<br /><br />
<div class="row">
<div>
<table class="table table-bordered table-striped dataTable dtr-inline"
style="overflow-y:scroll" role="grid">
<thead>
<tr role="row">
<th class="sorting_asc text-center">Pc ID</th>
<th class="sorting_asc text-center">Pc Model</th>
<th class="sorting text-center">Serial \ Mac address</th>
<th class="sorting text-center">Actions</th>
</thead>
//Replace your foreach with using HtmlHelper
<tbody>
<tr>
<td class="text-center">@Model.PCId</td>
<td class="text-center">@Model.PCName</td>
<td class="text-center">
@using (Html.BeginForm("Save", "EmployeePc", FormMethod.Post))
{
for (var i = 0; i < @Model. TBPc.Count; i++)
{
@Html.HiddenFor(m => m. TBPc [i].PCName)
@Html.DisplayName(@Model. TBPc [i].PCName) <br />
@Html.TextBoxFor(m => m. TBPc [i].PCId, new { htmlAttributes = new { @type = "number", @min = 0} })
<br />
}
<br />
<input class="btn btn-primary" type="submit" value="Submit" />
}
@*<a asp-action="Save" asp-route-id="@pc.PCId" class="btn btn-outline-success bi bi-plus"></a>*@
<input class="form-check-input" id="@Model.PCId" type="checkbox" value="@ Model.PCId" name="@ Model.PCId">
</td>
</tr>
</tbody>
</table>
</div>
<br />
<button style='margin-right:86px; width:150px;' type="submit" class="btn btn-outline-success">@ViewBag.ButtonName</button>
<a asp-controller="EmployeePc" asp-action="List" style="width:100px;" class="btn btn-outline-danger"> Back </a>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
添加 [FromForm] 以绑定模型。
您的控制器
//[ValidateAntiForgeryToken]
[HttpPost]
public IActionResult Save([FromForm]EmployeePCVWModel employeePC)
{
if(ModelState.IsValid)
{
//
}
//
return View(employeePC);
}
测试
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