我有一个名为Job的对象,其中一个属性是步骤列表:
public class Job
{
[Display(Name = "Id")]
public int? JobId { get; set; }
[Required]
public string Name { get; set; }
public List<Step> Steps { get; set; }
public Job()
{
Steps = new List<Step>();
}
}
public class Step
{
public int? StepId { get; set; }
public int JobId { get; set; }
[Required]
public string Name { get; set; }
}
我有一个JobController,它执行以下操作来执行更新:
// PUT: /Job/Edit/5
[HttpPut]
public ActionResult Edit(Job model)
{
// Logic to update model here
}
基于对此question的回答,我将我的UI(使用MVC5附带的Bootstrap模板)更新为:
@using (Html.BeginForm())
{
@Html.HttpMethodOverride(HttpVerbs.Put)
@Html.AntiForgeryToken()
<div class="form-horizontal">
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
@Html.HiddenFor(model => model.JobId)
<div class="form-group">
@Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" })
</div>
</div>
<h3>Steps</h3>
<div>
@foreach (var item in Model.Steps)
{
<div class="form-group">
@Html.Hidden("Steps[" + stepIndex + "].StepId", item.StepId)
@Html.LabelFor(modelItem => item.Name, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<input class="form-control text-box single-line" data-val="true" data-val-required="The Name field is required."
id="@String.Format("Steps_{0}__Name", stepIndex)" name="@String.Format("Steps[{0}].Name", stepIndex)" type="text" value="@item.Name" />
@Html.ValidationMessageFor(modelItem => item.Name, "", new { @class = "text-danger" })
</div>
</div>
stepIndex += 1;
<hr />
}
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Save" class="btn btn-default" />
</div>
</div>
</div>
}
正如您所看到的,我必须手动构建输入标记,而不是使用Html.EditorFor。原因是我需要控制id的名称,以便将索引传递给id和name。我认为有一种更好的方法可以让MVC使用labelFor,EditorFor和ValidationMessageFor来呈现正确的值。
我的问题是:
答案 0 :(得分:7)
选项1:将foreach
循环替换为for
:
@for (int i = 0; i < Model.Steps.Count; i++)
{
<div class="form-group">
@Html.HiddenFor(m => m.Steps[i].StepId)
@Html.TextBoxFor(m => m.Steps[i].Name, new { @class = "form-control text-box single-line" })
...
</div>
}
选项2:为Step.chtml
课程创建名为Step
的编辑器模板,并使用EditorFor
:
<强> Step.chtml 强>
@model Step
<div class="form-group">
@Html.HiddenFor(m => m.StepId)
@Html.TextBoxFor(m => m.Name, new { @class = "form-control text-box single-line" })
...
</div>
主视图
<h3>Steps</h3>
<div>
@Html.EditorFor(m => m.Steps)
<div>
在这两种方式中,框架都会为输入提供正确的名称和ID。
答案 1 :(得分:2)
看起来很复杂的事情,请尝试下面的内容
1.创建一个名为&#39; Step.cshtml&#39;的新编辑器模板(这是一个视图)。在EditorTemplates文件夹下使用模型Step。
2.在下面的代码中,执行以下代码:
Step.cshtml
@model Step
<div class="form-group">
@Html.HiddenFor(model => model.StepId)
@Html.LabelFor(modelItem => modelItem.Name, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.TextBoxFor(model => model.Name, htmlAttributes: new { @class = "form-control text-box single-line" })
@Html.ValidationMessageFor(modelItem => modelItem.Name, "", new { @class = "text-danger" })
</div>
3.从视图中删除foreach语句,然后将编辑器模板称为
@Html.EditorFor(model => model.Steps)