比较数组时填充列表困难

问题描述

在下面，我想使用GetUsersRole，但是在显示的部分上有困难。我想将Roles值与usersRole进行比较，如果Role == usersRole，则UserRole = true，否则为false。

In the following I want to use GetUsersRole but having difficulty with the part shown. I want to compare the Roles values with usersRole, and if Role==usersRole, then UserRole = true, else false.

基本上，我想要这样的东西结果：

basically I want to have somehing like this as my result :

user1：true

user1: true

user2：false

user2:false

用户3：错误

user4：正确

取决于用户角色

类角色

public enum Role
{                                            
    User1 = 1,
    User2= 2,
    User3= 3, 
    User4= 4
}

我正在上课

private class UserRoleModel
{
    public string Role { get; set; }
    public bool UserRole { get; set; }
}

和一种方法

public Role[] UserRoles { get; set; }  
private static UserRoleModel[] GetUsersRole(Role[]usersRole)
{
    List<UserRoleModel> rolesList = new List<UserRoleModel>();
    string[] Roles;
    Roles = new string[] { Role.user1.ToString(), Role.User2.ToString(), 
              Role.user3.ToString(), Role.user4.ToString() };
    foreach (var item in Roles)
    {
        rolesList.Add(new UserRoleModel
        {
            Role = item,
            *UserRole = usersRole.Contains(item)* ////difficulty here
        });
    }
    return rolesList.ToArray();
}

推荐答案

您正在遇到此问题因为您实际上不需要字符串时将 Role 值转换为字符串。将 ToString（）移至实际需要的位置：

You are running into this problem because you are turning the Role values into strings when you don’t actually need a string. Move the ToString() to where you actually need it:

public Role[] UserRoles { get; set; }  
private static UserRoleModel[] GetUsersRole(Role[]usersRole)
{
    List<UserRoleModel> rolesList = new List<UserRoleModel>();

    Role[] roles = (Role[]) Enum.GetValues(typeof(Role));

    // or if you need the specific three values like in your example:
    // Role[] roles = new Role[] { Role.User1, Role.User2, Role.User3, Role.User4 };

    foreach (var role in roles)
    {
        rolesList.Add(new UserRoleModel
        {
            Role = role.ToString(),
            UserRole = usersRole.Contains(role)
        });
    }
    return rolesList.ToArray();
}

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