Get screen width Javascript

<script type="text/javascript" language="javascript">

    if (document.getElementById("rightMenu") != null) {

        if (screen.width < 1200) {

            document.getElementById("rightMenu").style.display = "none";

        }

    }

</script>

position fixed for IE6

Add this code in the header

<!--[if IE 6]>
<style type="text/css">
.promomenu{
position:absolute; /* position fixed for IE6 */
top:expression(200+((e=document.documentElement.scrollTop)?e:document.body.scrollTop)+'px');
right:expression(0+((e=document.documentElement.scrollLeft)?e:document.body.scrollLeft)+'px');
}
</style>
<![endif]-->


日期時間倒數器

  <SCRIPT type="text/javascript" language="javascript">

      var startDate = new Date();

      var endDate = new Date(2012, 8, 20, 10, 00);

      var spantime = (endDate - startDate) / 1000;

      function getString(dt) {

          return dt.getFullYear() + "?" + (dt.getMonth() + 1) + "?" + dt.getDate() + "?" + dt.getHours() + "?" + dt.getMinutes() + "?";

      }

      function leftPad(n, len) {

          return (new Array(len - String(n).length + 1)).join("0").concat(n);

      }

      function cal() {

          spantime--;

          var d = Math.floor(spantime / (24 * 3600));

          var h = Math.floor((spantime % (24 * 3600)) / 3600);

          var m = Math.floor((spantime % 3600) / (60));

          var s = Math.floor(spantime % 60);

          str = d + "? " + h + "?" + m + "? " + s + "? ";

          document.getElementById("hours2").innerHTML = leftPad(h, 2);

          document.getElementById("min2").innerHTML = leftPad(m, 2);

          document.getElementById("sec2").innerHTML = leftPad(s, 2);

          if (document.getElementById("hours3") != null) {

              document.getElementById("hours3").innerHTML = leftPad(h, 2);

              document.getElementById("min3").innerHTML = leftPad(m, 2);

              document.getElementById("sec3").innerHTML = leftPad(s, 2);

          }

      }

      window.onload = function () {

          setInterval(cal, 1000);

      }

</SCRIPT>

DetailsView FindControl when Edit or Insert mode

Must in the PreRender or ItemCreated even.

.aspx file:

onprerender="DetailsView1_PreRender"

.cs file:

protected void DetailsView1_PreRender(object sender, EventArgs e)

    {

        if (IsPostBack)

        {

            DetailsView detailsView = (DetailsView)sender;

            if (detailsView.CurrentMode == DetailsViewMode.Edit)

            {

                DropDownList dropDownList = (DropDownList)detailsView.FindControl("DropDownList1");

                dropDownList.Items.Add(new ListItem("text", "value"));

            }

        }

    }

Create Google Calendar Event using Google Calendar API

Google api asp.net client download

http://code.google.com/p/google-api-dotnet-client/

public void CreateCalendarEvent(string content)

        {

            CalendarService calendarService = new CalendarService("CNBlogsMeeting");

            calendarService.setUserCredentials("Email", "Password");

            EventEntry entry = new EventEntry();

            //日曆標題與內容

            entry.Title.Text = content;

            entry.Content.Content = content;

            //開始與結束時間，17:00~18:00

            When eventTime = new When(DateTime.Now,

                DateTime.Now);

            entry.Times.Add(eventTime);

            //需要邀請的参會者

            //Who who = new Who();

            //who.Email = "cho88hk@gmail.com";

            //who.Rel = "http://www.yahoo.com.hk";

            //entry.Participants.Add(who);

            //给被邀請者發送通知

            //entry.Notifications = true;

            //被邀請者可以修改該日曆項

            //entry.ExtensionElements.Add(new GuestsCanModify("true"));

            Uri postUri = new Uri("https://www.google.com/calendar/feeds/default/private/full");

            AtomEntry insertEntry = calendarService.Insert(postUri, entry);

            //Assert.NotNull(insertEntry);

        }

Formatting the GridView Based on the Underlying Data

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            // determine the value of the status field

            int status = Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "status"));

            // color the background of the row

            switch (status)

            {

                case 0:

                    e.Row.BackColor = Color.LightGreen;

                    break;

                case 1:

                    e.Row.BackColor = Color.Red;

                    break;

                case 2:

                    e.Row.BackColor = Color.Blue ;

                    break;

            }

               

           

        }

}

HtmlAgilityPack 抓取HTML上的資訊 asp.net c#

HtmlAgilityPack 是可以簡單抓取html上特定位置資訊。

先在project>add reference 加上HtmlAgilityPack.dll
再配合firebug 的XPATH

//以apple store iphone 4s 為例

                    string str = "http://store.apple.com/hk/browse/home/shop_iphone/family/iphone/iphone4s";

 HttpWebRequest httpWebRequest = WebRequest.Create(str) as HttpWebRequest;

                try

                {

                    

                    HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

                    Stream stream = httpWebResponse.GetResponseStream();

                    StreamReader reader = new StreamReader(stream, Encoding.UTF8);

                    string s = reader.ReadToEnd();

                    reader.Close();

                    stream.Close();

                    httpWebResponse.Close();

                    HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();

                    htmlDoc.LoadHtml(s);

                    //16GB 32GB 64GB 的運送時間XPATH

                    HtmlNode anchors = htmlDoc.DocumentNode.SelectSingleNode(

"/html/body/div[2]/div[3]/div/div[2]/div[2]/div[3]/ul/li/label/span/span[3]/span");

                    HtmlNode anchors32 = htmlDoc.DocumentNode.SelectSingleNode(

"/html/body/div[2]/div[3]/div/div[2]/div[2]/div[3]/ul/li[2]/label/span/span[3]/span");

                    HtmlNode anchors64 = htmlDoc.DocumentNode.SelectSingleNode(

"/html/body/div[2]/div[3]/div/div[2]/div[2]/div[3]/ul/li[3]/label/span/span[3]/span");

//output

txtStatus.Text += anchors.InnerText + " " + anchors32.InnerText + " " + anchors64.InnerText + " ";

                }

                catch (WebException web)

                {

                    

                    //error message

                }