如何从 AspNetCore 中的 linq 查询中读取值？

Question

var userData = from x in _context.UserAccount.Where(x => x.UserName == login.UserName)
                                    select new { x.UserFullName, x.Email, x.UserAddress ,x.UserName
                                    ,x.UserPhoto ,x.UserMobileNo,x.UserGender,x.UserQualification,
                                    x.UserDepartment,x.UserDesignation,x.UserPriviledge,x.UserAccountId};

TempData["userData"] = JsonConvert.SerializeObject(userData);

如何从 userData 中读取值？然后存储在 TempData 中以传递到下一个视图？请帮忙！谢谢！！

Answer 1

您应该像下面这样创建 UserViewModel

public class UserViewModel
{
    public string UserFullName {get; set; }
    public string Email {get; set; }
    public string UserAddress {get; set; }
    // The rest of properties
}

然后你可以select这样的结果

var userData = (from x in _context.UserAccount.Where(x => x.UserName == login.UserName)
                    select new UserViewModel 
                    { 
                        UserFullName =  x.UserFullName,
                        Email = x.Email, 
                        UserAddress = x.UserAddress 
                        // The rest of properties 
                    }).ToList();
TempData["userData"] = userData;

最后，在View你可以这样

@{
  var userData = TempData["userData"] as List<UserViewModel>; // Make sure you've already included _NameSpace_Of_UserViewModel
}