ASP.NET MVC 编辑多个子记录的例子 [英] ASP.NET MVC example of editing multiple child records

问题描述

有谁知道在一个表单上显示父/子数据并允许所有子记录可编辑的 MVC 视图的任何示例或教程?

Does anyone know of any examples or tutorials of an MVC view that shows parent/child data all on one form, and allows all the child records to be editable?

例如，假设我有一张人和另一张包含他们拥有的车辆的表格.一种形式，我想显示给定人的每辆车，并使数据元素可编辑(即车牌号、汽车颜色等)，以防出现错误.我不想为每辆车跳转到单独的编辑表单.

For example, say I have a table of people and another containing the vehicles they own. One one form, I want to show every vehicle for a given person, and make the data elements editable (i.e. license plate number, car color, etc.) in case there are mistakes. I don't want to jump to a separate edit form for each vehicle.

到目前为止，我的尝试使我能够显示数据，但无法将其回发到控制器.我试图尽可能缩小问题的范围 在这里，但我仍然不明白，我认为可能需要一个更广泛的例子.有什么想法吗?

My attempts thus far have gotten me to the point where I can display the data, but I can't get it to post back to the controller. I've tried to narrow down the problem as far as I could here, but I'm still not getting it, and I think a broader example may be in order. Any ideas?

推荐答案

你可以试试这样的.

假设你有这个对象:

public class Vehicle
{
    public int VehicleID { get; set; }
    public string LicencePlate { get; set; }
    public string Color { get; set; }
}

这是您将用于编辑车辆详细信息(您将在其中发布表单)的控制器操作:

And this is your controller action that you'll use to edit vehicle details (where you'll post the form) :

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult EditVehicles(int Owner, Vehicle[] vehicles)
{
    //manipulate the data, then return back to the list
    return RedirectToAction("YourAction");
}

那么你应该这样设置你的表单:

Then you should set your form this way :

<!--have a form for each person, listing their vehicles-->
<form action="/EditVehicles" method="post">
    <input type="hidden" name="Owner" value="25" />
    <input type="hidden" name="Vehicles[0].VehicleID" value="10" />
    <input type="text" name="Vehicles[0].LicencePlate" value="111-111" />
    <input type="text" name="Vehicles[0].Color" value="Red" />
    <input type="hidden" name="Vehicles[1].VehicleID" value="20" />
    <input type="text" name="Vehicles[1].LicencePlate" value="222-222" />
    <input type="text" name="Vehicles[1].Color" value="Blue" />
    <input type="submit" value="Edit" />
</form>

这将帮助 DefaultModelBinder 将表单数据正确绑定到控制器中的模型.因此 Response.Write(vehicles[1].Color); 在您的控制器上，将打印Blue".

This will help the DefaultModelBinder to correctly bind the form data to your model in your controller. Thus Response.Write(vehicles[1].Color); on your controller, will print "Blue".

这是一个非常简单的例子，但我相信你明白了.有关将表单绑定到数组、列表、集合、字典的更多示例，请查看 此处.

This is a very simple example, but I'm sure you get the idea. For more examples about binding forms to arrays, lists, collections, dictionaries, take a look at here.

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