Question

我想知道是否有人可以帮我构建我的View模型......

我有三个父模型，用户，个人资料和项目

在视图中，我想传递一个包含用户信息，个人资料信息和项目信息的模型......

到目前为止，我的View模型看起来像这样......

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace ProDevPortMVC3.ViewModels
{
    public class PortfolioViewModel
    {
        public int ProfileID { get; set; }
        public int UserID { get; set; }
        public string ProfileFirstName { get; set; }
        public string ProfileLastName { get; set; }
        public string ProfileEmail { get; set; }
        public Nullable<long> ProfileContactNo { get; set; }
        public string ProfileCity { get; set; }
        public string ProfileState { get; set; }
        public string ProfileCountry { get; set; }
        public string ProfilePhotoPath { get; set; }
        public string ProfilePhotoName { get; set; }
        public string ProfileBio { get; set; }
        public string ProfileMissionStatement { get; set; }
        public string ProfilePrivacySetting { get; set; }
        public IEnumerable<ProfileBlog> ProfileBlogs { get; set; }
        public IEnumerable<ProfileForum> ProfileForums { get; set; }
        public IEnumerable<Project> Projects { get; set; }
    }
}

问题是Projects模型/表有一对多的子表...我在View模型中也需要他们的所有信息......这里是子表......

ProjectCodeSamples ProjectDownloads ProjectScreenShots ProjectTechnologiesUseds

到目前为止，这是我的控制器操作方法......

public ActionResult Index(int id)
{
    var profile = db.Profiles.SingleOrDefault(p => p.UserID == id);
    var profileBlogs = db.ProfileBlogs.Where(p => p.ProfileID == profile.ProfileID);
    var profileForums = db.ProfileForums.Where(p => p.ProfileID == profile.ProfileID);
    var projects = db.Projects.Where(p => p.ProfileID == profile.ProfileID);
    var viewModel = new PortfolioViewModel
    {
        ProfileFirstName = profile.ProfileFirstName,
        ProfileLastName = profile.ProfileLastName,
        ProfileEmail = profile.ProfileEmail,
        ProfileContactNo = profile.ProfileContactNo,
        ProfileCity = profile.ProfileCity,
        ProfileState = profile.ProfileState,
        ProfileCountry = profile.ProfileState,
        ProfilePhotoPath = profile.ProfilePhotoPath,
        ProfilePhotoName = profile.ProfilePhotoName,
        ProfileBio = profile.ProfileBio,
        ProfileMissionStatement = profile.ProfileMissionStatement,
        ProfilePrivacySetting = profile.ProfilePrivacySetting,
        ProfileBlogs = profileBlogs.Where(p => p.ProfileID == profile.ProfileID),
        ProfileForums = profileForums.Where(p => p.ProfileID == profile.ProfileID),
        Projects = projects.Where(p => p.ProfileID == profile.ProfileID)
    };
    return View(viewModel);
}

那么，我该如何继续或从这里做什么？

编辑：我忘了添加Project Child Tables有一个外键ProjectID，将它们连接到Projects表...

这是最终的View代码，可以使用...

@foreach (var item in Model.Projects)
{
    <p>
    @Html.DisplayFor(modelItem => item.ProjectName)
    </p>

    foreach (var subItem in item.ProjectDownloads)
    {
        <pre>
        @Html.DisplayFor(modelItem => subItem.ProjectDownloadPath)
        </pre>
    }
}

Answer 1

由于您在ViewModel中使用Project模型，因此您只需在视图中访问Project的子表。

例如，您应该能够执行以下操作：

foreach(var item in model.Projects)
{
    foreach(var download in item.ProjectDownloads)
    {
        ...
    }
}

如何构建复杂的视图模型

1 个答案: