MVC 4将列表从视图传递到控制器 [英] MVC 4 Passing a list from a view to a controller
问题描述
我是MVC ASP的新手，需要您的帮助. 我想将视图中的列表传递给控制器，但是每次提交表单时，控制器中的列表为空(空).
I'm new to MVC ASP and would need your assistance. I would like to pass a list from a view to controller but each time I submit my form, the list is empty (null) in the controller.
这是我的模特:
namespace ArcheryComp.Models
{
[MetadataType(typeof(Participe))]
public class Participe
{
[Required]
[Display(Name = "Id Archer")]
public int idArcher { get; set; }
[Required]
[Display(Name = "Id Tournoi")]
public int IdTournament { get; set; }
[Required]
[Display(Name = "Division")]
public int division { get; set; }
[Required]
[Display(Name = "Categorie")]
public string categorie { get; set; }
[Required]
[Display(Name = "Score 1")]
public int ArchScore1 { get; set; }
[Display(Name = "X")]
public int ArchScore1_X_6 { get; set; }
[Display(Name = "10")]
public int ArchScore1_10_5 { get; set; }
[Required]
[Display(Name = "Score 2")]
public int ArchScore2 { get; set; }
[Display(Name = "X")]
public int ArchScore2_X_6 { get; set; }
[Display(Name = "10")]
public int ArchScore2_10_5 { get; set; }
[Required]
[Display(Name = "Total")]
public int ArchTotalScore { get; set; }
[Display(Name = "Total X")]
public int ArchTotalScore_X_6 { get; set; }
[Display(Name = "Total 10")]
public int ArchTotalScore_10_5 { get; set; }
public List<Participe> liste { get; set; }
}
}
这是我的控制者:
namespace ArcheryComp.Controllers
{
public class ParticipeController : Controller
{
private ArcheryCompEntities db = new ArcheryCompEntities();
......
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult EncodeResult(IList<Participe> parti)
{
foreach (Participe item in parti)
{
var data = from part in db.Participe
where part.IdArcher == item.IdArcher && part.IdTournament == item.IdTournament
select part;
item.ArchScore1 = item.ArchScore1;
item.ArchScore2 = item.ArchScore2;
item.ArchTotalScore = item.ArchTotalScore;
}
这是我的观点:
@model List<ArcheryComp.Participe>
@{
ViewBag.Title = "EncodeResult";
}
<h2>Encoder Resultats</h2>
@using (Html.BeginForm("EncodeResult","Participe",FormMethod.Post))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(false)
<table>
<tr>
<th>
@Html.LabelFor(model => Model[0].Archers.Nom)
</th>
<th>
@Html.LabelFor(model => Model[0].Archers.Prenom)
</th>
<th>
@Html.LabelFor(model => Model[0].Divisions.DivDescription)
</th>
<th>
@Html.LabelFor(model => Model[0].Categorie)
</th>
<th>
@Html.LabelFor(model => Model[0].ArchScore1, new {style = "width: 10px;"})
</th>
<th>
@Html.LabelFor(model => Model[0].ArchScore2, new {style = "width: 10px;"})
</th>
<th>
@Html.LabelFor(model => Model[0].ArchTotalScore, new {style = "width: 10px;"})
</th>
</tr>
@for(int i = 0; i < Model.Count() ; i++)
{
<tr>
<td>
@Html.TextBox("archers["+@i+"].IdArcher", Model[i].Archers.Nom)
@Html.ValidationMessageFor(x => x[i].IdArcher)
</td>
<td>
@Html.TextBox("archers["+@i+"].Prenom", Model[i].Archers.Prenom)
</td>
<td>
@Html.TextBox("archers["+@i+"].Division", Model[i].Divisions.DivDescription)
@Html.ValidationMessageFor(x => x[i].Divisions.Id)
</td>
<td>
@Html.TextBox("archers["+@i+"].Categorie", Model[i].Categorie)
@Html.ValidationMessageFor(x => x[i].Categorie)
</td>
<td>
@Html.TextBox("suma["+@i+"]", Model[i].ArchScore1, new{ @onchange = "updatesum()"})
@Html.ValidationMessageFor(x => x[i].ArchScore1)
</td>
<td>>
@Html.TextBox("sumb["+@i+"]", Model[i].ArchScore2, new { @onchange = "updatesum()" })
@Html.ValidationMessageFor(x => x[i].ArchScore2)
</td>
<td>
@Html.TextBox("sumt["+@i+"]", Model[i].ArchTotalScore, new { @onchange = "updatesum()" })
@Html.ValidationMessageFor(x => x[i].ArchTotalScore)
</td>
</tr>
}
</table>
<p>
<input type="submit" value="Save" />
</p>
}
您能帮忙解决一下吗? 提前非常感谢！！！
Can you please help sort this out ? Many thanks in advance !!!
推荐答案
使用@Html.TextBox()时，您给输入的名称与模型属性没有任何关系，这意味着您不能绑定到集合提交.
Your use of @Html.TextBox() where you give the input a name that has no relationship whatsoever to your model properties and means that you cannot bind to a collection when you submit.
例如，您有一个属性string categorie，这意味着输入的名称需要为name="[0].categorie，但是您要使用name="archers[0].Categorie创建输入.".请始终使用强类型的html helper(因为用ValidationMessageFor()
For example you have a property string categorie which means that the name of the input would need to be name="[0].categorie, yet you create the input with name="archers[0].Categorie". Always use the strongly typed html helper (as you have done with ValidationMessageFor()
@Html.TextBoxFor(x => x[i].Categorie)
@Html.ValidationMessageFor(x => x[i].Categorie)
侧面说明:在表格标题中应该是
Side note: In your table headers it should be
<td>@Html.DisplayNameFor(m => m.Categorie)</td>
不是@Html.LabelFor(). <label>是html可访问性元素-单击它可以将焦点设置到关联的控件上，在这种情况下，这是没有意义的，因为您有一个表，其中每个表都包含多个控件.
not @Html.LabelFor(). A <label> is a html accessibility element - clicking on it sets focus to the associated control, which in this case makes no sense since you have a table containing multiple controls for each property.
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