返回的模型的集合,从视图 [英] Return a collection of models from a view
问题描述
我有一个要求,动态地创建对象在我的的Razor视图
和用户编辑他们之后,他们提交回服务器。结果
这是我的模型的样子:
I have a requirement to dynamically create objects in my Razor View
and after the user edits them, submit them back to the server.
This is how my model looks like:
public class Panel
{
public string Name { get; set; }
public string Text1 { get; set; }
public string Text2 { get; set; }
}
我想要做的是使用一个按钮的点击的JavaScript
每次渲染所需的投入。这是我的主视图的样子:
What I want to do is to render the required inputs each time the clicks on a button using Javascript
. this is how my main view looks like:
@model IEnumerable<TabsTest.Models.Panel>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
@for (int i = 0; i < ViewBag.I; i++)
{
@*@Html.Partial("_view", new TabsTest.Models.Panel() { Name = "A" + i })*@
@Html.Action("PanelSub", "Panels", new { name = i })
<hr />
}
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
的 PartialView
:
@model TabsTest.Models.Panel
@Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } })
@Html.EditorFor(model => model.Text1, new { htmlAttributes = new { @class = "form-control" } })
@Html.EditorFor(model => model.Text2, new { htmlAttributes = new { @class = "form-control" } })
和我的操作:
public ActionResult CreatePanels()
{
ViewBag.I = 5;
return View();
}
[HttpPost]
public ActionResult CreatePanels(IEnumerable<Panel> panels) // <= always returns Null
{
//handle collection...
return RedirectToAction("Index");
}
public PartialViewResult PanelSub(int name = -1)
{
var panel = new Panel() { Name = name.ToString() };
return PartialView("_view");
}
我的问题是如何使用的模型绑定来处理用户在视图中创建新的对象?
My question is how can I use the model binding to handle the new objects that the user created in the view?
推荐答案
您可以创建一个虚拟的一套克隆,当你点击一个添加面板按钮(假设你添加新的面板到一个div显示输入ID ='#面板')
You can create a dummy set of inputs that are cloned and displayed when you click an 'add panel' button (assumes you are adding new panels to a div with id='#Panels')
<div id="NewPanel" style="display:none">
<div class='panelContainer'>
<input type="text" name="panel[#].Name" value />
<input type="text" name="panel[#].Text1" value />
<input type="text" name="panel[#].Text2" value />
<input type="hidden" name="panel[#].Index" value ="%"/>
</div>
</div>
请注意使用虚拟索引以prevent这一个被调回
Note the use of a dummy indexer to prevent this one being posted back
和脚本
$('#AddButton').click(function() {
var index = $('#Panels').children('.panelContainer').length; // count of existing panels
var clone = $('#NewPanel').clone();
// Update the index of the clone
clone.html($(clone).html().replace(/\[#\]/g, '[' + index + ']'));
clone.html($(clone).html().replace(/"%"/g, '"' + index + '"'));
$('#Panels').append(clone);
}
请注意,你不需要局部视图这种解决方案
Note you do not need the partial view with this solution
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