通过与MVC剃刀列表对象 [英] Pass list objects with MVC Razor
本文介绍了通过与MVC剃刀列表对象的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用一个对象，但对象里面我有一个属性是对象的列表。我想通过与列表对象里面对象，但该列表是空的，当我提交表单。
我不知道如何处理这个问题。
类
公共类VSTAttendance
{
公众诠释MEMBERID {搞定;组; }
公共字符串名称{;组; }
公共字符串姓氏{搞定;组; }
公共BOOL话务员{搞定;组; }
}公共类ServiceAttendance
{
公众诠释AttendanceID {搞定;组; }
公众诠释AttendanceTypeID {搞定;组; }
公共字符串AttendanceType {搞定;组; }
公共服务的DateTime {搞定;组; }
公众诠释服务ID {搞定;组; }
公共字符串音箱{搞定;组; }
公共字符串位置{搞定;组; }
公众诠释人数{搞定;组; }
公众诠释类别ID {搞定;组; }
公共字符串描述{搞定;组; }
公共字符串ChurchNotes {搞定;组; }
公共字符串ServingNotes {搞定;组; }
公众的DateTime dateCreated会获得{;组; }
公众的DateTime CreatedBy {搞定;组; }
公众的DateTime DateUpdate {搞定;组; }
公众的DateTime UpdateBy {搞定;组; }
公开名单＆LT; VSTAttendance＆GT; MemberAttendance {搞定;组; }
}
HTML
@using（Html.BeginForm（考勤，家，FormMethod.Post，新{RETURNURL = ViewBag.ReturnUrl，@class =形横，角色= 形式}））
{
＆LT; DIV CLASS =表单组＆GT;
＆LT;标签=inputSpeaker级=COL-SM-2控制标签＆GT;
喇叭＆LT; /标签＆gt;
＆LT; DIV CLASS =COL-SM-6＆GT;
@ Html.TextBoxFor（M = GT; m.Speaker，新{@class =表格控，占位符=扬声器，键入=文字，要求=需要}）
＆LT; / DIV＆GT;
＆LT; / DIV＆GT;＆LT;表类=表表边框的表格冷凝表悬停＆GT;
＆LT; TR类=警告＆GT;
＆LT; TD＆GT;＆LT; / TD＆GT;
＆LT; TD＆GT;名称和LT; / TD＆GT;
＆LT; TD＆GT;＆姓LT; / TD＆GT;
＆LT; / TR＆GT;
@foreach（在Model.MemberAttendance VAR项）
{
＆所述; TR＆GT;
＆LT; TD＆GT; @ Html.CheckBox（话务员）＆LT; / TD＆GT;
＆LT; TD＆GT; @ item.Name＆LT; / TD＆GT;
＆LT; TD＆GT; @ item.Surname＆LT; / TD＆GT;
＆LT; / TR＆GT;
}
＆LT; /表＆gt;＆LT; DIV CLASS =表单组＆GT;
＆LT; DIV CLASS =COL-SM-10＆GT;
＆LT;按钮式=提交级=BTN BTN-INFO＆GT;
＆LT;跨度类=glyphicon glyphicon-OK＆GT;＆LT; / SPAN＆GT;提交＆LT; /按钮＆GT;
＆LT; / DIV＆GT;
＆LT; / DIV＆GT;}
解决方案
您必须使用替代的foreach和使用隐藏的。我已经测试了以下和作品完美
@model ServiceAttendance@ {
ViewBag.Title =考勤;
}＆LT; H2＆GT;考勤LT; / H＆GT;@using（Html.BeginForm（））
{
＆LT; DIV CLASS =表单组＆GT;
＆LT;标签=inputSpeaker级=COL-SM-2控制标签＆GT;
扬声器
＆LT; /标签＆gt;
＆LT; DIV CLASS =COL-SM-6＆GT;
@ Html.TextBoxFor（modelItem =＆GT; modelItem.Speaker）
＆LT; / DIV＆GT;
＆LT; / DIV＆GT; ＆LT;表类=表表边框的表格冷凝表悬停＆GT;
＆LT; TR类=警告＆GT;
＆LT; TD＆GT;＆LT; / TD＆GT;
＆LT; TD＆GT;名称和LT; / TD＆GT;
＆LT; TD＆GT;＆姓LT; / TD＆GT;
＆LT; / TR＆GT;
@for（INT I = 0; I＆LT; Model.MemberAttendance.Count;我++）
{
＆所述; TR＆GT;
＆LT; TD＆GT; @ Html.CheckBoxFor（IT = GT; Model.MemberAttendance [I] .Attendant）
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Attendant）
＆LT; / TD＆GT;
＆LT; TD＆GT; @ Model.MemberAttendance [I] .Name点
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Name点）LT; / TD＆GT;
＆LT; TD＆GT; @ Model.MemberAttendance [I] .Surname
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Surname）LT; / TD＆GT;
＆LT; / TR＆GT;
}
＆LT; /表＆gt; ＆LT; DIV CLASS =表单组＆GT;
＆LT; DIV CLASS =COL-SM-10＆GT;
＆LT;按钮式=提交级=BTN BTN-INFO＆GT;
＆LT;跨度类=glyphicon glyphicon-OK＆GT;＆LT; / SPAN＆GT;提交
＆LT; /按钮＆GT;
＆LT; / DIV＆GT;
＆LT; / DIV＆GT;}
所以，你必须做的就是用下面的
更换的foreach @for（INT I = 0; I＆LT; Model.MemberAttendance.Count;我++）
{
＆所述; TR＆GT;
＆LT; TD＆GT; @ Html.CheckBoxFor（IT = GT; Model.MemberAttendance [I] .Attendant）
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Attendant）
＆LT; / TD＆GT;
＆LT; TD＆GT; @ Model.MemberAttendance [I] .Name点
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Name点）LT; / TD＆GT;
＆LT; TD＆GT; @ Model.MemberAttendance [I] .Surname
@ Html.HiddenFor（IT = GT; Model.MemberAttendance [I] .Surname）LT; / TD＆GT;
＆LT; / TR＆GT;
}
I am using an object but inside object I have a property that is a list of objects. I want to pass that object with the list objects inside it but the list is empty when I submit my form. I am not sure how to handle this.
Class
public class VSTAttendance
{
public int MemberID { get; set; }
public string Name { get; set; }
public string Surname { get; set; }
public bool Attendant { get; set; }
}
public class ServiceAttendance
{
public int AttendanceID { get; set; }
public int AttendanceTypeID { get; set; }
public string AttendanceType { get; set; }
public DateTime Service { get; set; }
public int ServiceID { get; set; }
public string Speaker { get; set; }
public string Location { get; set; }
public int HeadCount { get; set; }
public int CategoryID { get; set; }
public string Description { get; set; }
public string ChurchNotes { get; set; }
public string ServingNotes { get; set; }
public DateTime DateCreated { get; set; }
public DateTime CreatedBy { get; set; }
public DateTime DateUpdate { get; set; }
public DateTime UpdateBy { get; set; }
public List<VSTAttendance> MemberAttendance { get; set; }
}
HTML
@using (Html.BeginForm("Attendance", "Home", FormMethod.Post, new { ReturnUrl = ViewBag.ReturnUrl, @class = "form-horizontal", role = "form" }))
{
<div class="form-group">
<label for="inputSpeaker" class="col-sm-2 control-label">
Speaker</label>
<div class="col-sm-6">
@Html.TextBoxFor(m => m.Speaker, new { @class = "form-control", placeholder = "Speaker", type = "text", required = "required " })
</div>
</div>
<table class="table table-bordered table-condensed table-hover">
<tr class="warning">
<td></td>
<td>Name</td>
<td>Surname</td>
</tr>
@foreach (var item in Model.MemberAttendance)
{
<tr>
<td>@Html.CheckBox("Attendant")</td>
<td>@item.Name</td>
<td>@item.Surname</td>
</tr>
}
</table>
<div class="form-group">
<div class="col-sm-10">
<button type="submit" class="btn btn-info">
<span class="glyphicon glyphicon-ok"></span>Submit</button>
</div>
</div>
}
解决方案
You have to use for instead of foreach and use Hidden for . I have tested the following and works perfect
@model ServiceAttendance
@{
ViewBag.Title = "Attendance";
}
<h2>Attendance</h2>
@using (Html.BeginForm())
{
<div class="form-group">
<label for="inputSpeaker" class="col-sm-2 control-label">
Speaker
</label>
<div class="col-sm-6">
@Html.TextBoxFor(modelItem => modelItem.Speaker)
</div>
</div>
<table class="table table-bordered table-condensed table-hover">
<tr class="warning">
<td></td>
<td>Name</td>
<td>Surname</td>
</tr>
@for (int i=0;i<Model.MemberAttendance.Count ;i++)
{
<tr>
<td>@Html.CheckBoxFor(it=>Model.MemberAttendance[i].Attendant)
@Html.HiddenFor(it => Model.MemberAttendance[i].Attendant)
</td>
<td>@Model.MemberAttendance[i].Name
@Html.HiddenFor(it => Model.MemberAttendance[i].Name)</td>
<td>@Model.MemberAttendance[i].Surname
@Html.HiddenFor(it=>Model.MemberAttendance[i].Surname)</td>
</tr>
}
</table>
<div class="form-group">
<div class="col-sm-10">
<button type="submit" class="btn btn-info">
<span class="glyphicon glyphicon-ok"></span>Submit
</button>
</div>
</div>
}
So what you have to do is replace the foreach with the following
@for (int i=0;i<Model.MemberAttendance.Count ;i++)
{
<tr>
<td>@Html.CheckBoxFor(it=>Model.MemberAttendance[i].Attendant)
@Html.HiddenFor(it => Model.MemberAttendance[i].Attendant)
</td>
<td>@Model.MemberAttendance[i].Name
@Html.HiddenFor(it => Model.MemberAttendance[i].Name)</td>
<td>@Model.MemberAttendance[i].Surname
@Html.HiddenFor(it=>Model.MemberAttendance[i].Surname)</td>
</tr>
}
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