将不可读的数据库数据显示为可读格式

Question

我有一个 table，其中包含一个只有数字的字段。我想要实现的是将枚举中的实际数字和 "translate" 数字表示为可读的值。

例如，我有一个用户 table，其中包含一个名为用户角色的字段。有4种角色：super admin、admin、manager、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

尝试从 Enum = 3 翻译时如何显示 Manager; Admin？

UserModel

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

Enum

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

C# Code

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();
}

//I was thinking something like this:

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

Answer 1

Enum.GetName(typeof(UserRole), enumValue) 会为您提供您正在寻找的 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();

将不可读的数据库数据显示为可读格式

Displaying non readable DB data into readable format

c#

class-properties

asp.net-core-2.0