noesis.Javascript 오픈 소스 구성 요소.Net 에서 javascript 스 크 립 트 를 실행 합 니 다.

화면 은 다음 과 같다.
그리고 click filter button 후의 UI:
보 세 요.코드 는 다음 과 같 습 니 다.

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(@"
                                                if({0})
                                                    isInclude=true;
                                                else
                                                    isInclude=false;", jsFilter);
                        context.Run(js);
                        bool isInclude = (bool)context.GetParameter("isInclude");
                        if (isInclude)
                            results.Add(user);
                    }
                }
            }
            catch
            {
                txtFilter.Focus();
                txtFilter.SelectAll();
                return this.users;
            }
            return results;
        }

효율 을 살 펴 보 자.

private void btnTest_Click(object sender, EventArgs e)
        {
            using (JavascriptContext context = new JavascriptContext())
            {
                Stopwatch sw = new Stopwatch();
                sw.Start();
                int i=1000000;
                while(i-- > 0)
                {
                    context.SetParameter("ii", 1);
                    context.SetParameter("jj", 2);
                    context.SetParameter("sum", 0);
                    string js = string.Format(@"sum=ii+jj;");
                    context.Run(js);
                    int sum = (int)context.GetParameter("sum");
                }
                sw.Stop();
                long useJS_Total = sw.ElapsedMilliseconds;
                float useJS_Average = ((float)sw.ElapsedMilliseconds) / 1000000;
                sw.Reset();
                sw.Start();
                i = 1000000;
                while (i-- > 0)
                {
                    int ii = 1;
                    int jj = 2;
                    int sum = 0;
                    sum = ii + jj;
                }
                sw.Stop();
                long nouseJS_Total = sw.ElapsedMilliseconds;
                float nouseJS_Average = ((float)sw.ElapsedMilliseconds) / 1000000;
                string msg = "";
                msg += string.Format("useJS_Total: {0}\r
", useJS_Total);
                msg += string.Format("useJS_Average: {0}\r
\r
\r
", useJS_Average);
                msg += string.Format("nouseJS_Total: {0}\r
", nouseJS_Total);
                msg += string.Format("nouseJS_Average: {0}\r
\r
\r
", nouseJS_Average);
                MessageBox.Show(msg);
            }
        }

결과(위 는 js 엔진 을 통 해 계 산 된 시간,아래 는 순 C\#시간 계산,비극 아):이 Noesis.Javascript 은 성능 요구 가 높 지 않 은 장소 에 만 적 용 됩 니 다