从MVC视图保存多个对象
我正在编写我的第一个MVC3应用程序,它是一个简单的订单跟踪应用程序.我想同时编辑订单和细节.当我编辑订单时,Edit的ActionResult返回订单和关联的行(我也使用EF).
public ActionResult Edit(int id)
{
// Get the order with the order lines
var orderWithLines = from o in db.Orders.Include("OrderLines")
where o.ID == id
select o;
// Not sure if this is the best way to do this.
// Need to find a way to cast to "Order" type
List<Order> orderList = orderWithLines.ToList();
Order order = orderList[0];
// Use ViewData rather than passing in the object in the View() method.
ViewData.Model = order;
return View();
}
订单和行显示没有问题,但是当我保存页面时,我没有将任何行传递回控制器.只有订单.这是View代码.
@model OrderTracker.Models.Order
@{
ViewBag.Title = "Edit";
}
<h2>Edit</h2>
@using (Html.BeginForm())
{
<fieldset>
<legend>Order</legend>
@Html.HiddenFor(model => model.ID)
@Html.HiddenFor(model => model.UserId)
<div>
@Html.LabelFor(model => model.OrderDate)
</div>
<div>
@Html.EditorFor(model => model.OrderDate)
</div>
<div>
@Html.LabelFor(model => model.Description)
</div>
<div>
@Html.EditorFor(model => model.Description)
</div>
<table>
<tr>
<th>
Description
</th>
<th>
Quantity
</th>
<th>
Weight
</th>
<th>
Price
</th>
<th></th>
</tr>
@foreach (var line in Model.OrderLines)
{
<tr>
<td>
@Html.EditorFor(modelItem => line.Description)
</td>
<td>
@Html.EditorFor(modelItem => line.Quantity)
</td>
<td>
@Html.EditorFor(modelItem => line.Weight)
</td>
<td>
@Html.EditorFor(modelItem => line.Price)
</td>
</tr>
}
</table>
<p>
<input type="submit" value="Save" />
</p>
</fieldset>
}
我能否就保存生产线数据和订单数据的最佳方法获得一些指导.
谢谢.
您遇到的问题与ICollection<T>控件生成的名称有关.以下是Phil Haack的详细讨论和他的解决方案(就@Html扩展方法而言 ;从他博客文章末尾给出的链接下载示例项目).这篇文章的目标是MVC/MVC2; 但它仍然适用于MVC3.
另外,如果你不想遵循黑客,你可以选择一个EditorTemplate对你的OrderLine实体模型.
这是步骤.
1)在(Views ->Shared -> EditorTemplates -> OrderLine.cshtml)下创建编辑器模板创建名为EditorTemplatesunder 的文件夹很重要Shared,模板名称应与要为其创建模板的EntityModel相同; 因此这个名字OrderLine.cshtml)
2) OrderLine.cshtml的代码
@model OrderTracker.Models.OrderLine
@{
Layout = null;
}
<!DOCTYPE html>
@Html.HiddenFor(modelItem => Model.id)
<tr>
<td>
@Html.EditorFor(modelItem => Model.Description)
</td>
<td>
@Html.EditorFor(modelItem => Model.Quantity)
</td>
<td>
@Html.EditorFor(modelItem => Model.Weight)
</td>
<td>
@Html.EditorFor(modelItem => Model.Price)
</td>
</tr>
3)使用此代码编辑您的视图(请注意我已用于EditorForOrderLines集合)
@model OrderTracker.Models.Order
@{
ViewBag.Title = "Edit";
}
<h2>Edit</h2>
@using (Html.BeginForm())
{
<fieldset>
<legend>Order</legend>
@Html.HiddenFor(model => model.ID)
@Html.HiddenFor(model => model.UserId)
<div>
@Html.LabelFor(model => model.OrderDate)
</div>
<div>
@Html.EditorFor(model => model.OrderDate)
</div>
<div>
@Html.LabelFor(model => model.Description)
</div>
<div>
@Html.EditorFor(model => model.Description)
</div>
<div>
<table>
<tr>
<th>
Description
</th>
<th>
Quantity
</th>
<th>
Weight
</th>
<th>
Price
</th>
</tr>
@Html.EditorFor(model => model.OrderLines)
</table>
</div>
<p>
<input type="submit" value="Save" />
</p>
</fieldset>
}
4)现在回帖后你会看到值
