private void AddBtn_2_Click(object sender, RoutedEventArgs e)
 {
     // Past
     PNFitem = new PastNFutureToDoList();
     ToDolist_Past.Children.Add(PNFitem);
 }
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            string[] partsTime = DateTime.Now.ToString().Split('/');
            TodayDate1.Text = partsTime[0].ToString();
            if (partsTime.Length == 2)
            {
                TodayDate2.Text = "." + partsTime[1].ToString();
            }
            else
            {
                TodayDate3.Text = ".0";
            }
            string[] DateNow = DateTime.Now.ToString().Split(' ');
            string[] date    = DateNow[0].Split('/');
            TodayDate3.Text = date[2].ToString() + "年";
            TodayDate2.Text = date[1].ToString() + "月";
            TodayDate1.Text = date[0].ToString() + "日";

            // ~~~~~今天~~~~~
            // 讀檔
            string[] Tlines = System.IO.File.ReadAllLines(@"C:\temp\Tdata.txt");

            // 逐行產生元件
            foreach (string Tline in Tlines)
            {
                // 用符號分隔
                string[] Tparts = Tline.Split('|');

                // 建立元件
                TodayToDoList Titem = new TodayToDoList();
                Titem.ItemName = Tparts[1];

                if (Tparts[0] == "+")
                {
                    Titem.IsChecked = true;
                }
                else
                {
                    Titem.IsChecked = false;
                }

                // 放入到 StackPanel
                ToDolist_Today.Children.Add(Titem);
            }

            // ~~~~~過去~~~~~
            string[] Plines = System.IO.File.ReadAllLines(@"C:\temp\Pdata.txt");

            // 逐行產生元件
            foreach (string Pline in Plines)
            {
                // 用符號分隔
                string[] Pparts = Pline.Split('|');

                // 建立元件
                PastNFutureToDoList Pitem = new PastNFutureToDoList();
                Pitem.ItemName = Pparts[1];

                if (Pparts[0] == "+")
                {
                    Pitem.IsChecked = true;
                }
                else
                {
                    Pitem.IsChecked = false;
                }

                // 放入到 StackPanel
                ToDolist_Past.Children.Add(Pitem);
            }

            // ~~~~~未來~~~~~
            string[] Flines = System.IO.File.ReadAllLines(@"C:\temp\Fdata.txt");

            // 逐行產生元件
            foreach (string Fline in Flines)
            {
                // 用符號分隔
                string[] Fparts = Fline.Split('|');

                // 建立元件
                FutureToDoList Fitem = new FutureToDoList();
                Fitem.ItemName = Fparts[1];

                if (Fparts[0] == "+")
                {
                    Fitem.IsChecked = true;
                }
                else
                {
                    Fitem.IsChecked = false;
                }

                // 放入到 StackPanel
                ToDolist_Future.Children.Add(Fitem);
            }
        }