Question

表格

CREATE TABLE [dbo].[Users](
[UserId] [int] IDENTITY(1,1) NOT NULL,
[UserName] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[Email] [varchar](255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[BirthDate] [smalldatetime] NULL,
[CountryId] [int] NULL,
CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED 
([UserId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, 
ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

CREATE TABLE [dbo].[TeamMember](
[UserId] [int] NOT NULL,
[TeamMemberUserId] [int] NOT NULL,
[CreateDate] [smalldatetime] NOT NULL CONSTRAINT [DF_TeamMember_CreateDate]  
  DEFAULT (getdate()),
CONSTRAINT [PK_TeamMember] PRIMARY KEY CLUSTERED 
([UserId] ASC,
[TeamMemberUserId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF,
ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

dbo.TeamMember将UserId和TeamMemberUserId都作为索引键。

我的目标是在我的视图上显示用户列表。在我想要标记的列表中，或突出显示作为LoggedIn用户的团队成员的用户。

我的ViewModel

public class UserViewModel
{
 public int UserId { get; private set; }
 public string UserName { get; private set; }
 public bool HighLight { get; private set; }

 public UserViewModel(Users users, bool highlight)
 {
  this.UserId = users.UserId;
  this.UserName = users.UserName;
  this.HighLight = highlight;
 }
}

查看

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master"
Inherits="System.Web.Mvc.ViewPage<MvcPaging.IPagedList<MyProject.Mvc.Models.UserViewModel>>" %>
<% foreach (var item in Model) { %>
 <%= item.UserId %>
 <%= item.UserName %>
 <%if (item.HighLight)  { %>
  Team Member
 <% } else { %>
  Not Team Member
<% } %>

如何切换TeamMember 如果我将dbo.TeamMember添加到EDM，此表上没有关系，我将如何将其连接到Users对象？
所以我将LoggedIn UserId与此列表进行比较（SELECT TeamMemberUserId FROM TeamMember WHERE UserId = @LoggedInUserId）

修改
TeamMemberUserId是作为团队成员的用户的UserId 我将表命名为Users以避免与System.We.Security User类混淆。

Answer 1

我认为TeamMemberUserId真的是TeamId吗？

为什么表之间没有关系？

为什么多元化搞砸了？用户与用户？

听起来像你需要的东西： -

  int userId = ... user Id for current user

  var teams = context.TeamMember.Where(tm => tm.UserId == userId);

  foreach (User other in ...)
  {
      int otherId = other.UserId;

       bool highlight = teams.Any(team => context.TeamMember.Any(tm => tm.TeamId == team.TeamId && tm.UserId == otherId ));
       ...
   }

如果你在那里有FK关系，哪个会更清洁。

如何使用Entity Framework和Asp.Net Mvc 2进行引用

1 个答案: