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我创建MVC应用5一个模型,在这个应用我加入使用值“DiscussionPreview_Model”模型名单下跌数据的一个VAR模型和绑定多个数据表绑定两个数据模型在MVC
这是控制器类
public ActionResult Discussion_Preview()
{
int Discussion_ID = 1;
var discussion_preview = (from d in db.AB_Discussion
where d.Discussion_ID == Discussion_ID
join dc in db.AB_DiscussionComments on d.Discussion_ID equals dc.Discussion_ID
join user_discussion in db.AspNetUsers on d.CreatedBy equals user_discussion.Id
join user_comments in db.AspNetUsers on dc.CreatedBy equals user_comments.Id
select new DiscussionPreview_Model
{
Disussion_ID = d.Discussion_ID,
Discussion_CreateDate = d.CreatedDate,
Discussion_CreateBy = user_discussion.UserName,
Discussion_Title = d.Discussion_Name,
Discussion_Description = d.Discription,
Comment_ID = dc.Comment_ID,
Comment_Description = dc.Comment_Discription,
Comment_CreateDate = dc.CreatedDate,
Comment_CreateBy = user_comments.UserName
});
return View(discussion_preview);
}
这是我的 “DiscussionPreview_Model” 模型类
public class DiscussionPreview_Model
{
DiscussionVM model1;
CommentVM model2;
}
public partial class DiscussionVM
{
public int Disussion_ID { get; set; }
public Nullable<System.DateTime> Discussion_CreateDate { get; set; }
public string Discussion_CreateBy { get; set; }
public string Discussion_Title { get; set; }
public string Discussion_Description { get; set; }
public IEnumerable<CommentVM> Comments { get; set; }
}
public partial class CommentVM
{
public int Comment_ID { get; set; }
public Nullable<System.DateTime> Comment_CreateDate { get; set; }
public string Comment_CreateBy { get; set; }
public string Comment_Description { get; set; }
}
这是查看页面
@model IEnumerable<prjkt.Models.DiscussionPreview_Model>
@{
ViewBag.Title = "Discussion_Preview";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@foreach (var discussion in Model.DiscussionVM)
{
<h3>>@discussion.Discussion_Title</h3>
<div>@discussion.Discussion_Description</div>
<div>@discussion.Discussion_CreateDate</div>
}
@foreach (var item in Model.CommentVM)
{
<fieldset>
<legend></legend>
<h4>Comments</h4>
<div class="display-field">@item.Comment_Description</div>
<div class="display-field">@item.Comment_CreateBy : @item.Comment_CreateDate </div>
</fieldset>
}
但这不能正常工作,我想在很多方面
克服这个问题真的很感激能提出一个强大的LINQ查询方法
您没有阅读我对您最后一个问题的评论吗? DiscussionVM'已经包含了一个属性,用于评论。您需要初始化一个'DiscussionVM',从'AB_Discussion'表中填充其常规属性('Name','Description'等),然后从'AB_DiscussionComments'表中填充它的注释集合。 –
你的意思是工作不正常?你能告诉我你面临的确切问题是什么? –
@StephenMuecke我不能真正理解,你的意思,希望这是我的知识的缺乏,很感激,如果你能告诉我比如 – Chathz