----------------------------------------------------------------------------
string dateString, format;  
DateTimeOffset result;
IFormatProvider provider = CultureInfo.InvariantCulture;

// Parse date-only value with invariant culture and assume time is UTC.
dateString = "06/15/2008";
format = "d";
if (DateTimeOffset.TryParseExact(dateString, format, provider, 
                                 DateTimeStyles.AssumeUniversal, 
                                 out result))
   Console.WriteLine("'{0}' converts to {1}.", dateString, result.ToString());
else
   Console.WriteLine("'{0}' is not in the correct format.", dateString);

// Parse date-only value with leading white space.
// Should return False because only trailing whitespace is  
// specified in method call.
dateString = " 06/15/2008";
if (DateTimeOffset.TryParseExact(dateString, format, provider, 
                                 DateTimeStyles.AllowTrailingWhite, 
                                 out result))
   Console.WriteLine("'{0}' converts to {1}.", dateString, result.ToString());
else
   Console.WriteLine("'{0}' is not in the correct format.", dateString);

// Parse date and time value, and allow all white space.
dateString = " 06/15/   2008  15:15    -05:00";
format = "MM/dd/yyyy H:mm zzz";
if (DateTimeOffset.TryParseExact(dateString, format, provider, 
                                 DateTimeStyles.AllowWhiteSpaces, 
                                 out result))
   Console.WriteLine("'{0}' converts to {1}.", dateString, result.ToString());
else
   Console.WriteLine("'{0}' is not in the correct format.", dateString);

// Parse date and time and convert to UTC.
dateString = "  06/15/2008 15:15:30 -05:00";   
format = "MM/dd/yyyy H:mm:ss zzz";       
if (DateTimeOffset.TryParseExact(dateString, format, provider, 
                                DateTimeStyles.AllowWhiteSpaces | 
                                DateTimeStyles.AdjustToUniversal, 
                                out result))
   Console.WriteLine("'{0}' converts to {1}.", dateString, result.ToString());
else
   Console.WriteLine("'{0}' is not in the correct format.", dateString);
// The example displays the following output:
//    '06/15/2008' converts to 6/15/2008 12:00:00 AM +00:00.
//    ' 06/15/2008' is not in the correct format.
//    ' 06/15/   2008  15:15    -05:00' converts to 6/15/2008 3:15:00 PM -05:00.
//    '  06/15/2008 15:15:30 -05:00' converts to 6/15/2008 8:15:30 PM +00:00.

--------------------------------------------------------------------------------
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
// add
using System.Text;
using System.Globalization;
using ZLib.Core;
using ZLib.Web;


public partial class Main_Main : System.Web.UI.Page
{
    private const string mcsProgramID = "Main";
    private const string mcsProgramName = "京奇電腦";
    private DateTime mdPageTime_Last;
    private DateTime mdPageTime_This;
    protected void Page_Load(object sender, EventArgs e)
    {
        StringBuilder sb = new StringBuilder();
        bool bLogin;
        string s1;
        string sKey, sValue;
        string sFile;

        mdPageTime_This = DateTime.Now;
        lblPageTime.Text = mdPageTime_This.ToString("yyyy.MM.dd HH:mm:ss");
        this.Title = mcsProgramID + "-" + mcsProgramName;

        if (IsPostBack)
        {
            IFormatProvider provider = CultureInfo.InvariantCulture;

            if (!DateTime.TryParseExact(lblPageTime.Text, "yyyy.MM.dd HH:mm:ss", provider, DateTimeStyles.None, out mdPageTime_Last))
                throw new Exception("Last Page DateTime error");
        }
        else
        {
            // Init
            // todo: change GetMapPath to Get_MapPath 
            //            sFile = ZWeb.GetMapPath("~/
            sKey = "Common";
            //if (ZFile.ReadAllText(
            //sValue = ZFile.re
            //if (Page.RegisterClientScriptBlock(

            //<font size="30">hello</font>
            sb.Length = 0;
            //sb.AppendLine("<font color='red' size='14'>");
            sb.AppendLine("<font size='5'>");
            sb.AppendLine(mcsProgramName);
            sb.AppendLine("</font>");
            sb.AppendLine("開放時間: 08:30 ~ 24:00");
            this.SPANLeftInfo.InnerHtml = sb.ToString();


            bLogin = false;

            sb.Length = 0;

            // 都新開視窗, 保留主視窗不變當作menu, 並且需切換focus到指定視窗
            sb.AppendLine(ZHTML.Get_A_OnClick_WindowOpenURL("我的資料", "../SCS/SCS1070.aspx", "SCS1070", "style='color:black;'"));
            if (bLogin)
            {
                sb.Append(" | ");
                sb.Append("<a href=\"P0000.aspx\" target=\"P0000\">我的設定</a>");
                sb.Append(" | ");
                sb.Append("<a href=\"P0000.aspx\" target=\"P0000\">登出</a>");
            }
            else
            {
                //sb.Append("| ");
                //sb.Append("<a href=\"P0000.aspx\" target=\"P0000\">匿名網友</a>");
                //sb.Append(" | <a href=\"../SCS/SCS1010.aspx\" target=\"SCS1010\">登入</a>");
                sb.Append(" | ");
                sb.AppendLine(ZHTML.Get_A_OnClick_WindowOpenURL("登入", "../SCS/SCS1010.aspx", "SCS1010", "style='color:black;'"));
                //sb.AppendLine(ZHTML.Get_A("登入", "../SCS/SCS1010.aspx", "SCS1010", "style='color:black;'"));

            }

            //sb.Append(" | ");
            //sb.Append(ZHTML.Get_A_WindowOpen("../SCS/SCS1010.aspx", "SCS1010", "", "test", "color:black;"));

            //sb.Length = 0;
            //sb.AppendLine("<font>");
            //sb.AppendLine("<font>");
            //this.DIVLeftInfo.InnerHtml = SByte.


            this.DIVRightInfo.InnerHtml = sb.ToString();
            //sb.Append(ZHTML.BuildDIVPane("Head", "Body"));


            sb.Length = 0;

            sb.Append("版本:");
            s1 = gCommon.Project.ReleaseVersion;
            sb.AppendLine(ZHTML.Get_A_OnClick_WindowOpenURL(s1, "About.aspx", "About"));


            this.DIVSystemInfo.InnerHtml = sb.ToString();

            // 內容
            sb.Length = 0;
            sb.AppendLine();
            sb.AppendLine("歡迎光臨。");
            sb.AppendLine();
            sb.AppendLine("您尚未登入本系統，IP來自: " + ZWeb.REMOTE_ADDR);
            sb.AppendLine();
            sb.AppendLine("本站僅提供專案客戶使用。");
            sb.AppendLine();
            sb.Replace(ZDefine.NewLine, "<br />");
            this.DIVHelloMsg.InnerHtml = sb.ToString();


            gProject.SetPageStyle(this, this.body);


            MenuItem menu1;
            menuMain.Items.Clear();

            //s1 = "javascript:" + ZJavaScript.GetStatement_WindowOpenURL_NoReturn("../Main/MAIN1020.aspx", "MAIN1020");
            s1 = "javascript:" + ZJavaScript.GetStatement_WindowOpenURL_NoReturn("../Main/ContactInfo.aspx", "ContactInfo");
            menu1 = new MenuItem("聯絡資料", "", "", s1);
            menuMain.Items.Add(menu1);

            s1 = "javascript:" + ZJavaScript.GetStatement_WindowOpenURL_NoReturn("MainEmployee.aspx", "MainEmployee");
            menu1 = new MenuItem("內部網站", "", "", s1);
            menuMain.Items.Add(menu1);

            // call java on postback test
            //MenuItem menu2;
            //menuMain.Items.Clear();
            //menu2 = new MenuItem("Call java on postback", "MAIN1020");
            //menuMain.Items.Add(menu2);


        }
    }
    //protected void menuMain_MenuItemClick(object sender, MenuEventArgs e)
    //{
    //    string sValue;
    //    string sJAVA;
    //    string sFile;

    //    sValue = e.Item.Value;

    //    //sValue = e.CommandArgument.ToString().ToLower();
    //    if (sValue == "MAIN1020")
    //    {
    //        //sFile = ZWeb.Path_RequestFilePath;
    //        //sFile = ZWeb.Path_RequestPath;
    //        //sFile = ZWeb.Path_RequestPathInfo;
    //        //sFile = ZWeb.Path_RequestRawUrl;
    //        //ZJavaScript.WindowOpenURL_OnPostBack("../Main/MAIN1020.aspx", sValue, "gWIN_MAIN1020");
    //    }
    //}
}