public bool IsUserInRole(string tenantName, string username, string roleName) { if (string.IsNullOrEmpty(tenantName)) { throw new ArgumentNullException("tenantName"); } if (string.IsNullOrEmpty(username)) { throw new ArgumentNullException("username"); } if (string.IsNullOrEmpty(roleName)) { throw new ArgumentNullException("roleName"); } return(AuthorizationLogic.IsUserInRole(tenantName, username, roleName)); }