找不到对象“TABLE”，因为它不存在或您没有权限

Posted 2021-04-11

我知道N没有具有相同标题的解决方案，并且在3天之后无用运行它们我必须在此处发布。

我有这样的UserDetailDAC.cs： -

public UserDetails ValidateUserAdmin(string Usrname, string pwd)
    {
        using (var db = new HostelManagementContext())
        {
            //IEnumerable<UserDetails> linq;
            //string query = "SELECT* FROM UserDetails WHERE UserName ='" + Usrname + "' COLLATE SQL_Latin1_General_CP1_CS_AS AND UserPwd = '" + pwd + "' COLLATE SQL_Latin1_General_CP1_CS_AS";
            //linq = db.Database.SqlQuery<UserDetails>(query);
            //return linq.FirstOrDefault();
            return db.Set<UserDetails>().Where(x => x.UserName == Usrname && x.UserPwd == pwd).FirstOrDefault();
        }
    }

我的HostelManagementContext.cs是这样的： -

 public HostelManagementContext() : base("ConnectionString")
    {
        Database.SetInitializer(new MigrateDatabaseToLatestVersion<HostelManagementContext, HostelModel.Migrations.Configuration>("ConnectionString"));
        //Database.SetInitializer<HostelManagementContext>(new DropCreateDatabaseIfModelChanges<HostelManagementContext>());
    }
    public DbSet<CandidateHostelBookingMapping> CandidateHostelBookingMappings { get; set; }
public DbSet<UserDetails> UserDetails { get; set; }

现在，当我尝试运行它时，它给出了以下错误： -

Cannot find the object "CandidateHostelBookingMappings" because it does not exist or you do not have permissions.

这是实体框架代码的第一种方法。请随时询问任何进一步的细节

答案

//您是否使用Migration来使用包管理器控制台创建数据库和表？

enable-migrations -ContextTypeName HostelManagementContext 
add-migration -ConfigurationTypeName -----
update-database -ProjectName