private void BTNSearch_Click(object sender, RoutedEventArgs e)
        {
            if (string.IsNullOrEmpty(this.TBMainSearch.Text))
            {
                JMessBox jb = new JMessBox("请输入内容");
                jb.Show();
            }
            else
            {
                string destination = "/DrugResultPage.xaml";

                if (isByKeywords)
                {
                    Dictionary<string, string> dic = new Dictionary<string, string>();
                    dic.Add("name", "drug");
                    dic.Add("keyword", this.TBMainSearch.Text);
                    PhoneApplicationService.Current.State["dic"] = dic;
                    destination += string.Format("?type={0}", "Drug");

                }
                else
                {
                    Dictionary<string, string> dic = new Dictionary<string, string>();
                    dic.Add("number", "国药准字Z" + this.TBMainSearch.Text);
                    PhoneApplicationService.Current.State["dic"] = dic;
                    destination += string.Format("?type={0}", "DrugNumber");


                }



                NavigationService.Navigate(new Uri(destination, UriKind.Relative));
            }

        }
        protected override void OnBackKeyPress(System.ComponentModel.CancelEventArgs e)
        {
            e.Cancel = true;

            JMessBox jb = new JMessBox("再按一次离开");
            jb.Completed += (b) =>
            {
                if (b)
                {
                    //退出代码

                    Application.Current.Terminate();
                }
            };
            jb.Show();
        }
        private void BTNSearch_Click(object sender, RoutedEventArgs e)
        {
            if (this.TBMainSearch.Text == "如:“发热”,“小儿”" || string.IsNullOrEmpty(this.TBMainSearch.Text))
            {
                JMessBox jb = new JMessBox("请输入内容");
                jb.Show();
            }
            else
            {
                string destination = "/GeneralResultPage.xaml";
                destination += string.Format("?keyword={0}&type={1}", this.TBMainSearch.Text, "Symptom");
                NavigationService.Navigate(new Uri(destination, UriKind.Relative));
            }

        }