无法检查用户角色。User.IsInRole返回false

if (!User.Identity.IsAuthenticated)
{
    Response.Redirect("~/Account/Login");
}

<configuration>
  <system.web>
    <roleManager enabled="true" defaultProvider="CustomRoleProvider">
      <providers>
        <clear/>
        <add name="CustomRoleProvider" type="CustomRoleProvider" connectionStringName="MyConnectionString"/>
      </providers>
    </roleManager>
  </system.web>
</configuration>

INSERT INTO Roles (RoleName) VALUES ('Admin');
INSERT INTO UserRoles (UserId, RoleId) VALUES (1, 1);

public class CustomRoleProvider : RoleProvider
{
    public override string[] GetRolesForUser(string username)
    {
        // 实现获取用户角色的逻辑
    }
}

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();