界面如下：

然后，click filter button后的UI：

看，篩選出來了，代碼如下（js能調C#寫的UserInfo類的各個屬性）

代碼如下:
public class UserInfo
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public int Age { get; set; }
        public override string ToString()
        {
            return string.Format("{0}, {1}: {2}", FirstName, LastName, Age);
        }
    }

private void btnSearch_Click(object sender, EventArgs e)
        {
            List<UserInfo> users = FilterUsers(txtFilter.Text.Trim());
            lstUsers.DataSource = users;
        }

        private List<UserInfo> FilterUsers(string jsFilter)
        {
            List<UserInfo> results = new List<UserInfo>();
            if (jsFilter.Trim().Length == 0)
                return this.users;

            try
            {
                using (JavascriptContext context = new JavascriptContext())
                {
                    foreach (UserInfo user in this.users)
                    {
                        context.SetParameter("user", user);
                        context.SetParameter("isInclude", false);
                        string js = string.Format(@"