Question

首先，我有一个模型，它是我专门为视图创建的视图模型，这不是真正的模型映射到表格如下：

型号：

 public class BlogPageModel
    {
        public Blog Blogs { get; set; }
        public BlogAid BlogAids { get; set; }
        public BlogAuthor BlogAuthors { get; set; }
        public BlogComment BlogComments { get; set; }
        public BlogContent BlogContents { get; set; }
        public BlogNews BlogNews { get; set; }
        public BlogTitle BlogTitles { get; set; }
    }

但你可以看到这个模型中的所有属性都是真实的模型映射到表格，所以我用它来显示我的视图内容。

另一方面，我有一个视图，这是一个页面，显示博客作者的所有博客，谁应该是博客所有者。所以它就像下面这样：

查看：

@model  IEnumerable<LeduInfo.Models.BlogPageModel> 

@{
    ViewBag.Title = "Index";
}

<div class="container">

      <div class="row">

        <div class="col-lg-12">
          <h1 class="page-header">Blog Home 1 <small>Blog Homepage</small></h1>
          <ol class="breadcrumb">
            <li><a href="index.html">Home</a></li>
            <li class="active">Blog Home 1</li>
          </ol>
        </div>

      </div>

      <div class="row">

          <div class="col-lg-8">

           @foreach (var item in Model)
           {


            <h1>@*<a href="blog-post.html">A Blog Home Template for Bootstrap 3</a>*@
              @Html.ActionLink(item.BlogTitles.Titles,"BlogPost",new{@id=item.Blogs.BlogID})
          </h1>
          <p class="lead">by <a href="#">Start Bootstrap</a></p>
          <hr>
          <p><i class="icon-time"></i> Posted on August 28, 2013 at 10:00 PM</p>
          <hr>
          <a href="blog-post.html"><img src="http://placehold.it/900x300" class="img-responsive"></a>
          <hr>
          <p>This is a very basic starter template for a blog homepage. It makes use of Font Awesome icons that are built into the 'Modern Business' template, and it makes use of the Bootstrap 3 pager at the bottom of the page.</p>
          <a class="btn btn-primary" href="blog-post.html">Read More <i class="icon-angle-right"></i></a>

          <hr>
           }

我的问题是如何使模型枚举并返回model.tolist（）然后发送回视图进行显示？

控制器：

 public ActionResult Index()
        {
            List<BlogPageModel> modelList = new List<BlogPageModel>();
            BlogPageModel blogpagemodel;
            var blogPageModelList = from b in DB.Blogtbl
                                    join t in DB.BlogTitletbl on b.TitleID equals t.TitleID
                                    join c in DB.BlogContenttbl on b.ContentID equals c.ContentID
                                    where b.BlogID > 0
                                    select new { Title = t.Titles, Content = c.Contents, id = b.BlogID };
            ?????
            return View();
        }

你有什么好主意吗？

Answer 1

很抱歉我不知道你的查询返回值是多少。但我会发布示例代码

public ActionResult Index()
        {
            List<BlogPageModel> modelList = new List<BlogPageModel>();
            modelList.Blogs.Add(//Blogs table values);
            modelList.BlogAid.Add(//BlogAid table values);
            modelList.BlogAuthor.Add(//BlogAuthor table values);

            List<BlogPageModel> modelListLatest = new List<BlogPageModel>();
            return View(modelListLatest.AddRange(modelList));
        }

Answer 2

问题是您的Linq查询returns an anonymous type，因此您无法将该类型的名称写入View中，以便以强类型方式访问它。如果您选择BlogPageModel，则可以返回如下的可枚举：

public ActionResult Index()
{
    var blogPageModelList = (
        from b in DB.Blogtbl
        join t in DB.BlogTitletbl on b.TitleID equals t.TitleID
        join c in DB.BlogContenttbl on b.ContentID equals c.ContentID
        where b.BlogID > 0
        select new BlogPageModel
        {
            BlogTitles = t.Titles,
            BlogContents = c.Contents
        })
        .ToList();

    return View(blogPageModelList);
}

这应该适用于你的观点，因为它写在你的问题中。

Answer 3

通过我有一个答案可以打开我的想法，但我想发布正确而详细的解释我如何解决我的问题。

 IQueryable<BlogPageModel> blogmodellist =     from b in DB.Blogtbl
                                    join t in DB.BlogTitletbl on b.TitleID equals t.TitleID
                                    join c in DB.BlogContenttbl on b.ContentID equals c.ContentID
                                    //join m in DB.BlogCommenttbl on b.CommentID equals m.CommentID
                                    where b.BlogID > 0 && t.Titles !=null
                                    select new BlogPageModel { BlogTitles = t , BlogContents = c, Blogs=b};

            blogpagemodel.Blogs = new Blog();
            blogpagemodel.BlogTitles = new Models.BlogTitle();
            blogpagemodel.BlogContents = new BlogContent();
            //IEnumerable<BlogPageModel> titleList = blogPageModelList.TakeWhile(m => m.Title != null);

            foreach (var item in blogmodellist)
            {
                //blogpagemodel.BlogComments.CommentID = (int)item.cid;
                blogpagemodel.Blogs.BlogID = item.Blogs.BlogID;
                blogpagemodel.BlogTitles.Titles = item.BlogTitles.Titles;
                blogpagemodel.BlogContents.Contents = item.BlogContents.Contents;

                modelList.Add(blogpagemodel);
            }

            //var titlesList = blogPageModelList
            //        .Select(m => m.Title)
            //        .ToList();

            //modelList.AddRange(blogPageModelList.ToList());
            return View(blogmodellist.ToList());

如何传递一个Ienumerable模型来查看？

3 个答案: