将不可读的DB数据显示为可读格式

Question

我有一个包含只有数字的字段的表。我想要实现的是在枚举中表示实际数字并将数字“转换”为可读的值。

例如，我有一个User表，其中包含一个名为User Roles的字段。有四种角色：super admin，admin，manager和regular user。

Super Admin is represented as 0
Admin is represented as 1
Manager is represented as 2
ManagerAdmin is represented by 3 (combination of admin = 1 and Manager = 2)
Regular user is represented as 4

在尝试从Enum = 3翻译时如何显示Manager; Admin？

的usermodel

public int UserRoles {get; set;}
public string UserNames {get; set;}
public string UserAddress {get; set;}

枚举

public enum UserRole
{
  SuperAdmin = 0,
  Admin = 1,
  Manager = 2,
  Regular = 3
  ManagerAdmin = 4
}

C＃代码

public IEnumerable<User> UserInfo()
{
 var userInfo = context.User.Select(u => new UserModel
 {
   UserRoles = u.Roles, //this is where I want the actual string roles
   UserNames = u.Names,
   UserAddress = u.Address
 }).ToList();
}

//我在想这样的事：

if(u.Roles == 0)
{
    // project Super Admin
}
else if(u.Roles == 1)
{
    // project Admin
} etc...

Answer 1

Enum.GetName(typeof(UserRole), enumValue)会给你你正在寻找的Rolename。这里enumValue将是0,1,2,3

var userInfo = context.User.Select(u => new UserModel
{
   UserRoles =Enum.GetName(typeof(UserRole), u.Roles) , 
   UserNames = u.Names,
   UserAddress = u.Address
}).ToList();