如何处理“PartialRender"模型? [英] How to handle `PartialRender` Models?

问题描述

如果我碰巧有

公共类 DoorsModel{公共门模型(){}公共 HttpPostedFileBase 图像 { 获取；放;}公共字符串门布局{得到；放;}公共布尔 ReplicateSettings { 获取；放;}公共列表<DoorDesignModel>门{得到;放;}}公共类 DoorDesignModel{公共门设计模型(){}公共 HttpPostedFileBase FrontFile { 获取；放;}公共 HttpPostedFileBase BorderFile { 获取；放;}}

在我的 View 中，我有一个普通的表单来填充模型属性，但是 List 我正在使用用户控件并使用

<%Html.RenderPartial("DoorDesign", Model.Doors);%>

在 DoorDesign.ascx 我有:

<%@ 控制语言="C#" AutoEventWireup="true"Inherits="System.Web.Mvc.ViewUserControl<List<MyProject.Backend.Models.DoorDesignModel>>"%>

要显示所有表单，我有一个 for 子句

MyProject.Backend.Models.DoorDesignModel 字段；for (i = 0; i < Model.Count; i++) {字段=模型[i]；...}

我正在使用 HTML

但很快我按下提交按钮，我的模型返回一个 null 列表:(我在启动视图时创建并设置一个新列表

public ActionResult Doors(){DoorsModel 模型 = 新 DoorsModel();model.Doors = new List();for (int i= 1; i<= 24; i++)//添加 24 扇门model.Doors.Add(新 DoorDesignModel())；返回视图(模型)；}[HttpPost]公共 ActionResult Doors(DoorsModel 模型){//model.Doors 始终为 null !!!如果(模型状态.IsValid)ViewData["General-post"] = "有效";别的ViewData["General-post"] = "NOT Valid";返回视图(模型)；}

我需要什么才能从 RenderPartial 部分返回门列表?

一个简单的视图模型

解决方案

刚遇到同样的问题.找到这个网站:http://weblogs.asp.net/nmarun/archive/2010/03/13/asp-net-mvc-2-model-binding-for-a-collection.aspxp>

基本上都是关于<input type="file" value="上传文件" name="Doors[<%: i %>].FrontFile" id="Doors[<%: i %>].FrontFile">

if by any means I happen to have

public class DoorsModel
{
    public DoorsModel() { }

    public HttpPostedFileBase Image { get; set; }
    public String DoorLayout { get; set; }
    public bool ReplicateSettings { get; set; }
    public List<DoorDesignModel> Doors { get; set; }
}

public class DoorDesignModel
{
    public DoorDesignModel() { }

    public HttpPostedFileBase FrontFile { get; set; }
    public HttpPostedFileBase BorderFile { get; set; }
}

and in my View I have a normal form to populate the Model Properties but the List<DoorDesignModel> I'm using a User Control and use

<%Html.RenderPartial("DoorDesign", Model.Doors); %>

inside DoorDesign.ascx I have:

<%@ Control 
       Language="C#" AutoEventWireup="true"
       Inherits="System.Web.Mvc.ViewUserControl<List<MyProject.Backend.Models.DoorDesignModel>>" %>

to display all form I have a for clause

MyProject.Backend.Models.DoorDesignModel field;
for (i = 0; i < Model.Count; i++) { 
    field = Model[i];
    ... 
}

and I'm using the HTML

<input type="file" value="Upload file" 
    name="Doors.FrontFile[<%: i %>]" id="Doors.FrontFile[<%: i %>]">

but soon I press the submit button, my model returns a null List :( and I'm creating and setting a new list when starting the View as

public ActionResult Doors()
{
    DoorsModel model = new DoorsModel();

    model.Doors = new List<DoorDesignModel>();
    for (int i= 1; i<= 24; i++) // Add 24 Doors
        model.Doors.Add(new DoorDesignModel());

    return View(model);
}

[HttpPost]
public ActionResult Doors(DoorsModel model)
{
    // model.Doors is always null !!!

    if (ModelState.IsValid)
        ViewData["General-post"] = "Valid";
    else
        ViewData["General-post"] = "NOT Valid";

    return View(model);
}

What do I need to have in order to return the Doors List from the RenderPartial part?

a simple mockup of the View

解决方案

Just had the same problem. Found this website: http://weblogs.asp.net/nmarun/archive/2010/03/13/asp-net-mvc-2-model-binding-for-a-collection.aspx

Essentially it is all about <input type="file" value="Upload file" name="Doors[<%: i %>].FrontFile" id="Doors[<%: i %>].FrontFile">

这篇关于如何处理“PartialRender"模型?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！