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Parsing a string C#, From html screen scrape

Posted on 2008-09-30
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Last Modified: 2013-12-17
I'm doing a html screen scrape and I need to format the information that I get back.

I am able to scrape it in a string variable. I now need to search the string and extact information.  this is the string:
(see below)

I need outputted with is in between the <b> tags. example:

string prodType = "Xpresspost"
DateTime expectedDate = new DateTime(2008,10,01);
string refNumber = "20480";

I also need to find the text "Item arrived at postal facility", look in that same table row and get the ACTUAL date
(in this case "new DateTime(2008,09,26)")

I hope that is clear. Basically read the string and based on that declare C# variables to use later on.

Many thanks!

<!-- Result Table -->
												
<strong>Product Type</strong>:
<b>Xpresspost</b>
								
								
<br/>
<strong>Service Standard Delivery Date</strong>:
<b>2008/10/01</b>
								
<br/>
<strong>Reference Number 1</strong>:
<b>20480</b>
								
								
<br/>
<strong>Reference Number 2</strong>:
<b>A : 0.5</b>
								
								
</p>
							
<!--  START error Section  -->	
							
<!--  END error Section  -->	
							
<!--  START Header Section -->
							
<table border="0" cellpadding="0" cellspacing="0" id="tableDetailedItemInformation" class="searchInfo">
<tr class="title">
<th class="Headercolumn1">Date of Event</th>
<th class="Headercolumn1">Time of Event</th>
<th class="Headercolumn1">Location</th>
<th class="Headercolumn1">Description</th>
<th class="Headercolumn1">Retail Location</th>
<th class="Headercolumn1">Signatory Name</th>
</tr>
							
<!--  END Header Section -->	
<!--  START Detail Section -->
 
<tr class="">
<td >2008/09/26</td>
<td >17:21</td>
<td>
STE THERESE DE BLAINVILLE, QC
</td>
<td >
										
Item arrived at postal facility
										
</td>
<td >
</td>
	<td>
	
 
		&nbsp;
	
</td>
</tr>
 
	<tr class="">
	<td >2008/09/26</td>
	<td >14:58</td>
	<td>
	
		STE THERESE DE BLAINVILLE, QC
 
	</td>
	<td >
 
		An order has been electronically submitted
 
	</td>
	<td >
 
 
		&nbsp;
 
	</td>
	<td>
	
 
		&nbsp;
	
</td>
</tr>
 
 
 
</table>

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Question by:copyPasteGhost
  • 6
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10 Comments
 
LVL 18

Expert Comment

by:Priest04
ID: 22606730
One way:

Goran
List<string> list = new List<string>();
 
string data = textBox1.Text;
 
int i = 0;
int start = 0;
int end = 0;
bool processing = true;
while (processing)
{
    start = data.IndexOf("<b>", start + 1);
    end = data.IndexOf("</b>", start + 1);
 
    if (start != -1 && end != -1)
    {
        list.Add(data.Substring(start + 3, end - start - 3));
    }
    else
    {
        processing = false;
    }
}

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Author Comment

by:copyPasteGhost
ID: 22607005
I gave just a sampling of the html. there may be other <b> that I have no intrest in.

I really need to first find the string "<strong>Product Type</strong>"  and then extract the text between the <b> tags.

same for "<strong>Service Standard Delivery Date</strong>"
                                          
and for "<strong>Reference Number 1</strong>"
0
 
LVL 13

Author Comment

by:copyPasteGhost
ID: 22607018
also that doesn't solve my other problem with

>>I also need to find the text "Item arrived at postal facility", look in that same table row and get the ACTUAL date
>>(in this case "new DateTime(2008,09,26)")
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LVL 23

Expert Comment

by:Tiggerito
ID: 22614103
I would use Regex to do it.

First I would convert the input html into a single line by removing new lines. I find this makes it easier to getting regex working.

Then its down to working out the regex expressions...

For your strong/b combination something like this should work:

<strong>(?<name>.*?)</strong>:.*?<b>(?<value>.*?)</b>

Each match would return named captures for 'name' and 'value'. my regex tool shows the following results based on your html:

    name => Product Type
    value => Xpresspost
   
    name => Service Standard Delivery Date
    value => 2008/10/01
   
    name => Reference Number 1
    value => 20480
   
    name => Reference Number 2
    value => A : 0.5
   
To gather your date this regex seems to work

Item arrived at postal facility.*<td >(?<submitteddate>[0-9/]*)</td>

Where the named capture of 'submitteddate' will have your result...

    submitteddate => 2008/09/26
   
You could improve and refine these expressions with more knowledge of what html may be produced.
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LVL 13

Author Comment

by:copyPasteGhost
ID: 22614177
I'm guessing you are using a generic dictionary to store the name, value pairs?

if so, do you have that code too...

I'm new to generics....
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LVL 13

Author Comment

by:copyPasteGhost
ID: 22614183
or are you just doing a match and then a foreach on the match collection?
0
 
LVL 23

Expert Comment

by:Tiggerito
ID: 22614716
Yep,

This may help you get started (not tested, compiled and based on a few wines):


        Regex pairsRegex = new Regex(@"<strong>(?<name>.*?)</strong>:.*?<b>(?<value>.*?)</b>"); 
		Regex dateRegex = new Regex(@"Item arrived at postal facility.*<td >(?<submitteddate>[0-9/]*)</td>"); 
		
		string htmlSource = "bla";
 
		Match match;
		
		for (match = pairsRegex.Match(htmlSource); match.Success; match = match.NextMatch())
		{
			string name = match.Groups["name"].Value;
			string val  = match.Groups["value"].Value;
			
			// do thing with data
		}
		
		match = dateRegex.Match(htmlSource);
		
		if (match.Success)
		{
			string date = match.Groups["submitteddate"].Value;
			
			// do date stuff
		}

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Author Comment

by:copyPasteGhost
ID: 22614758
cool I'll play with that for a bit. I'll keep you posted.

thanks!
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Author Comment

by:copyPasteGhost
ID: 22618640
ok finally got some time to try it out. It doesn't seem to be working...

here is the contents of the string:
            webPageContent      "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><head><!-- <script type=\"text/javascript\" language=\"javascript\" src=\"js/flash-fix.js\"></script><script type=\"text/javascript\" language=\"javascript\" src=\"js/nonflash-e.js\"></script>--><script language=\"JavaScript\">var segment = \"common\";var language = \"e\";var omniLang = \"English\";/* (HM_Loader.js / HM_ScriptNS4.js /HM_ScriptIE4.js / HM_ScriptDOM.js)   Copyright 2001 Peter Belesis.   http://www.webreference.com/dhtml/   All rights reserved.   Used under license.   License Holder: Fuel Industries (www.fuelindustries.com)*/HM_DOM = (document.getElementById) ? true : false;HM_NS4 = (document.layers) ? true : false;HM_IE = (document.all) ? true : false;HM_IE4 = HM_IE && !HM_DOM;HM_Mac = (navigator.appVersion.indexOf(\"Mac\") != -1);HM_IE4M = HM_IE4 && HM_Mac;HM_IsMenu = (HM_DOM || HM_NS4 || (HM_IE4 && !HM_IE4M));//HM_IsTopNavDropDown = HM_IsMenu;HM_IsTopNavDropDown = false;HM_BrowserString = HM_NS4 ? \"NS4\" : HM_DOM ? \"DOM\" : \"IE4\";if(window.event + \"\" == \"undefined\") event = null;function HM_f_PopUp(){return false};function HM_f_PopDown(){return false};popUp = HM_f_PopUp;popDown = HM_f_PopDown;// Define menu default look here// (left nav flyouts use this)HM_GL_MenuWidth          = 145;HM_GL_FontFamily         = \"Arial, Helvetica\";HM_GL_FontSize           = 9;HM_GL_FontBold           = false;HM_GL_FontItalic         = false;HM_GL_FontColor          = \"#0C2577\";HM_GL_FontColorOver      = \"#0C2577\";HM_GL_BGColor            = \"#E7EFF7\";HM_GL_BGColorOver        = \"#BFCEDD\";HM_GL_ItemPadding        = 2;HM_GL_BorderWidth        = 1;HM_GL_BorderColor        = \"#082073\";HM_GL_BorderStyle        = \"solid\";HM_GL_SeparatorSize      = 1;HM_GL_SeparatorColor     = \"#082073\";HM_GL_ImageSrc           = \"/library/images/template/tri.gif\";HM_GL_ImageSrcLeft       = \"\";HM_GL_ImageSize          = 7;HM_GL_ImageHorizSpace    = 0;HM_GL_ImageVertSpace     = 0;HM_GL_KeepHilite         = false;HM_GL_ClickStart         = false;HM_GL_ClickKill          = false;HM_GL_ChildOverlap       = 1;HM_GL_ChildOffset        = -1;HM_GL_ChildPerCentOver   = null;HM_GL_TopSecondsVisible  = .5;HM_GL_StatusDisplayBuild = 0;HM_GL_StatusDisplayLink  = 1;HM_GL_UponDisplay        = null;HM_GL_UponHide           = null;HM_GL_RightToLeft        = false;//HM_GL_CreateTopOnly      = HM_NS4 ? true : false;HM_GL_CreateTopOnly     = true;HM_GL_ShowLinkCursor     = true;// the following function is included to illustrate the improved JS expression handling of// the left_position and top_position parameters// you may delete if you have no use for itfunction HM_f_CenterMenu(topmenuid) {var TheMenu = HM_DOM ? document.getElementById(topmenuid) : HM_IE4 ? document.all(topmenuid) : eval(\"window.\" + topmenuid);var TheMenuWidth = HM_DOM ? parseInt(TheMenu.style.width) : HM_IE4 ? TheMenu.style.pixelWidth : TheMenu.clip.width;var TheWindowWidth = HM_IE ? document.body.clientWidth : window.innerWidth;return ((TheWindowWidth-TheMenuWidth) / 2);}if(HM_IsMenu) {document.write(\"<SCR\" + \"IPT LANGUAGE='JavaScript1.2' SRC='./js/pool_quicklinks-\" + segment + '-' + language + \".js' TYPE='text/javascript'><\\/SCR\" + \"IPT>\");document.write(\"<SCR\" + \"IPT LANGUAGE='JavaScript1.2' SRC='https://ssl.postescanada-canadapost.ca/library/js/menus-\" + segment + '-' + language + \".js' TYPE='text/javascript'><\\/SCR\" + \"IPT>\");document.write(\"<SCR\" + \"IPT LANGUAGE='JavaScript1.2' SRC='https://ssl.postescanada-canadapost.ca/library/js/hm_script\"+ HM_BrowserString +\".js' TYPE='text/javascript'><\\/SCR\" + \"IPT>\");}</script><title id=\"theTitle\">Canada Post - </title><link rel=\"stylesheet\" href=\"css/cpc.css\" type=\"text/css\"></link><meta name=\"generator\" content=\"Hand Coded\"></meta><meta name=\"author\" content=\"Canada Post\"></meta><meta name=\"description\" content=\"\"></meta><meta name=\"keywords\" content=\"\"></meta><meta http-equiv=\"content-language\" content=\"EN\"><script language=\"JavaScript\" src=\"./js/pool_common.js\" type=\"text/javascript\"></script><script language=\"JavaScript\" src=\"https://ssl.postescanada-canadapost.ca/library/js/popup.js\" type=\"text/javascript\"></script><script language=\"JavaScript\" src=\"https://ssl.postescanada-canadapost.ca/library/js/searchbox_header.js\" type=\"text/javascript\"></script><script>// Name this windowtop.name = \"CPC\";top.focus();// Preload the mouseover imagespreload( \"https://ssl.postescanada-canadapost.ca/library/images/template/_language-e.gif\" );preload( \"https://ssl.postescanada-canadapost.ca/library/images/template/_pcl-e.gif\" );preload( \"https://ssl.postescanada-canadapost.ca/library/images/template/_ship-e.gif\" );preload( \"https://ssl.postescanada-canadapost.ca/library/images/template/_tap-e.gif\" );preload( \"https://ssl.postescanada-canadapost.ca/library/images/template/_pol-e.gif\" );</script><style>.LEGAL_{    FONT-SIZE: 10px;    COLOR: #333333;     FONT-FAMILY: Arial, Helvetica}</style></head><body bgcolor=\"#FFFFFF\" marginwidth=\"0\" marginheight=\"0\" topmargin=\"0\" leftmargin=\"0\" onload=\"doPreload();\" class=\"body.emo\"><div class=\"noindex\"><script language=\"JavaScript\" type=\"text/javascript\"><!--var segment = \"common\";var language = \"e\";if(window.event + \"\" == \"undefined\") event = null;function HM_f_PopUp(){return false};function HM_f_PopDown(){return false};popUp = HM_f_PopUp;popDown = HM_f_PopDown;function doPreload(){  for(i=1;i<=2;i++)      preload('https://ssl.postescanada-canadapost.ca/library/images/leftnav/common/_m'+i+'-e.gif');  }doPreload();function getnavURL(nav){  if( menuurl[nav] )  {    var base = location.protocol + \"//\" + location.hostname;    return(base + menuurl[nav])  }  else    //return(\"Menu URL for \" + nav + \" is undefined!\");return(\"\");}function leftnav(nav){  if( menuurl[nav] )    location = menuurl[nav];//  else//    alert(\"Menu URL for \" + nav + \" is undefined!\");}//--></script><!-- Search Template --><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"767\"><tr><td valign=\"top\" width=\"145\"><a href=\"https://ssl.postescanada-canadapost.ca/segment-e.asp\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/logo-e.gif\" width=\"145\" height=\"56\" border=\"0\" alt=\"To Home page.\"></img></a></td>  <td valign=\"top\" width=\"484\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/backgrounds/track_a_package.jpg\" width=\"484\" height=\"56\" border=\"0\" alt=\"\"></img></td>  <td valign=\"top\" width=\"138\"><a href=\"https://em.canadapost.ca/emo_business/basicPin.do?language=fr\" onmouseover=\"mover('language-e','template');\" onmouseout=\"mout('language-e','template');\" onclick=\"setCookie('LANG','e');\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/language-e.gif\" name=\"language-e\" width=\"138\" height=\"56\" border=\"0\" alt=\"Vers la version Français du site\"></img></a></td>  </tr></table><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" class=\"shortcutbackground\" width=\"767\"><form action=\"https://ssl.postescanada-canadapost.ca/search/default-e.aspx\" name=\"searchForm\" method=\"POST\" onSubmit=\"return doSearch(this)\" style=\"padding:0px 0px 0px 0px; margin:0px 0px 0px 0px;\"><input type=\"hidden\" name=\"Language\" value=\"en\" ><input type=\"hidden\" name=\"TextOnly\" value=\"false\" ID=\"Hidden4\">  <input id=\"query\" type=\"hidden\" name=\"Query\">    <tr><td width=\"145\" align=\"left\"><script language=\"javascript\" src=\"https://ssl.postescanada-canadapost.ca/library/js/segment/clearText.js\"></script><script language=\"javascript\" src=\"https://ssl.postescanada-canadapost.ca/library/js/shortcut_search.js\"></script><table width=\"130\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\" style=\"margin-left:5px;\">     <tr onclick=\"return !showMenu('2', event);\">       <script language=\"JavaScript\">  document.write( \"<td width=\\\"120\\\" class=\\\"shortcutdropsel\\\"><span style=\\\"cursor:default\\\" >Shortcut to... &nbsp;&nbsp;&nbsp;</span></td>\");      document.write( \"<td align=\\\"right\\\" width=\\\"16\\\" class=\\\"shortcutarrow\\\"><img src=\\\"https://ssl.postescanada-canadapost.ca/library/images/segment/arrowdrop.gif\\\" width=\\\"16\\\" height=\\\"14\\\" border=\\\"0\\\" /><br /></td>\");      </script>      <noscript>      <td width=\\\"145\\\" class=\\\"shortcutdropsel\\\">&nbsp;</td>      </noscript>           </tr> </table><div id=\"menu2\" class=\"menu\" style=\"position:absolute; display:none;\">  <div id=\"Div3\" style='position:absolute; overflow:auto; top: 0px; left: 4px; width:190px; height:200px;  background-color: #D9E6EF; padding-top: 0px; border: 1px solid #656565; margin-right:0px; margin-left:0px;'>  <table width=\"190\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" >      <script language=\"JavaScript\">// Display the shortcuts    document.write( \"<tr name='quicklink' class='TOPNAVDROPDOWNSELECT'>\");   document.write( \"<td width=\\\"190\\\" >\");  document.write( \"<span style=\\\"cursor:default\\\">\");    outputShortcuts();  document.write( \"</td>\");  document.write( \"</tr>\");    document.write( \"</span>\");</script></table></div> </div></td><td valign=\"top\" width=\"120\"><a href=\"https://ssl.postescanada-canadapost.ca/common/tools/pcl/bin/advanced-e.asp\" onmouseover=\"mover('pcl-e','template');\" onmouseout=\"mout('pcl-e','template');\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/pcl-e.gif\" name=\"pcl-e\" width=\"120\" height=\"27\" border=\"0\" alt=\"Find a Postal Code\"></img></a></td><td valign=\"top\" width=\"119\"><a href=\"https://ssl.postescanada-canadapost.ca/ship_now/default-e.asp\" onmouseover=\"mover('ship-e','template');\" onmouseout=\"mout('ship-e','template');\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/ship-e.gif\" name=\"ship-e\" width=\"119\" height=\"27\" border=\"0\" alt=\"Ship\"></img></a></td><td valign=\"top\" width=\"121\"><a href=\"https://em.canadapost.ca/emo_business/basicPin.do?language=en\" onmouseover=\"mover('tap-e','template');\" onmouseout=\"mout('tap-e','template');\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/tap-e.gif\" name=\"tap-e\" width=\"121\" height=\"27\" border=\"0\" alt=\"Track a Package\"></img></a></td><td valign=\"top\" width=\"124\"><a href=\"https://ssl.postescanada-canadapost.ca/common/tools/pol/bin/search-e.asp\" onmouseover=\"mover('pol-e','template');\" onmouseout=\"mout('pol-e','template');\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/pol-e.gif\" name=\"pol-e\" width=\"124\" height=\"27\" border=\"0\" alt=\"Find a Post Office\"></img></a></td><td valign=\"top\" width=\"114\" align=\"center\" valign=\"middle\" background=\"https://ssl.postescanada-canadapost.ca/library/images/template/topnavback.gif\" width=2 height=27 alt=\"\">        <input type=\"text\" ID=\"Text3\" name=\"QueryText\" value=\"Search\" class=\"searchBox\" onfocus=\"if (this.value=='Search') {this.value= '';}\"></input>     </td>    <script language=\"JavaScript\">    document.write( \"<td valign=\\\"top\\\" width=\\\"24\\\"><input type=image src=\\\"https://ssl.postescanada-canadapost.ca/library/images/template/searchsubmit.gif\\\" name=\\\"searchsubmit\\\" alt=\\\"Search\\\" width=\\\"24\\\" height=\\\"27\\\" border=\\\"0\\\" onmouseover=\\\"mover('searchsubmit','template');\\\" onmouseout=\\\"mout('searchsubmit','template');\\\"></td>\");    </script>    <noscript><td valign=\"top\" width=\"24\"><input type=image src=\"https://ssl.postescanada-canadapost.ca/library/images/template/searchsubmit.gif\" alt=\"Search\" width=\"24\" height=\"27\" border=\"0\" ID=\"Submit1\" name=\"searchsubmit\" onmouseover=\"mover('searchsubmit','template');\" onmouseout=\"mout('searchsubmit','template');\"></td>    </noscript></tr></form></table><!-- End Search Template --></div><!-- BREADCRUMBS --><div class=\"noindex\"><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"766\"><tr><td width=146 valign=top><img src=\"https://ssl.postescanada-canadapost.ca/library/images/leftnav/common/header-e.gif\" width=146 height=25 border=0 alt=\"\"></img></td>  <td width=\"482\" valign=\"top\">    <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"482\">    <tr>    <td valign=\"middle\" height=\"25\" background=\"https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/subnavback.gif\" width=\"100%\" alt=\"\">    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href=\"https://ssl.postescanada-canadapost.ca/segment-e.asp\" class=\"CRUMBS\">Home</a><span class=\"CRUMBSARROW\"> > </span><a href=\"https://ssl.postescanada-canadapost.ca/common/tools/default-e.asp\" class=\"CRUMBSARROW\"><span class=\"CRUMBSONPAGERED\">Online Tools</span></a>    </td>            <td background=\"https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/subnavback.gif\" width=\"20\" height=\"25\" alt=\"\" border=\"0\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/dot.gif\" width=\"1\" height=\"25\" border=\"0\" alt=\"\"></img></td>    </tr>    </table>  </td>  <td width=\"138\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/subnavright.gif\" width=\"138\" height=\"25\" border=\"0\" alt=\"\"></img></td></tr></table><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr><!-- First column --><td width=\"146\" valign=\"top\">  <!-- LEFT NAV -->   <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\"> <tr><td><a href=\"https://ssl.postescanada-canadapost.ca/personal/default-e.asp\" onmouseover=\"nav('common','m1','_','e');\" onmouseout=\"self.status='';nav('common','m1','','e');return(true);\"><img name=\"m1\" id=\"m1\" src=\"https://ssl.postescanada-canadapost.ca/library/images/leftnav/common/m1-e.gif\" width=\"145\" alt=\"personal\" border=\"0\"></img></a></td></tr><tr><td><a href=\"https://ssl.postescanada-canadapost.ca/business/default-e.asp\" onmouseover=\"nav('common','m2','_','e');\" onmouseout=\"self.status='';nav('common','m2','','e');return(true);\"><img name=\"m2\" id=\"m2\" src=\"https://ssl.postescanada-canadapost.ca/library/images/leftnav/common/m2-e.gif\" width=\"145\" alt=\"business\" border=\"0\"></img></a></td></tr><tr><td><img src=\"https://ssl.postescanada-canadapost.ca/library/images/leftnav/common/bottom.gif\" width=\"145\" height=\"11\"></img></td></tr></table>  <!-- END LEFT NAV --></td><!-- END First column --><td width=\"620\" valign=\"top\" background=\"https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/widepagecontentback.gif\" alt=\"\"><!-- Regular Page -->    <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" align=\"center\" width=\"482\">  <tr>  <td align=\"left\" valign=\"top\" width=\"482\"><img src='https://ssl.postescanada-canadapost.ca/library/images/dot.gif' width=\"482\" height=\"19\" border=\"0\" alt=\"\"></img></td>  <td align=\"left\" valign=\"top\" bgcolor=\"#FAF7CF\" width=\"138\"><img src='https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/onpagesubnavtop.gif' width=\"138\" height=\"19\" border=\"0\" alt=\"\"></img><br>  <!-- Omniture Library -->  <td><script language=\"JavaScript\" type=\"text/javascript\" src=\"library/include/webtracking/s_code_20080502.js\"></script></td> </tr>  </table><!-- Content begins -->  <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" align=\"left\" width=\"604\">  <tr>  <td align=\"left\" valign=\"top\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/dot.gif\" width=\"16\" height=\"1\" border=\"0\" alt=\"\"></img></td>  <td width=\"588\" border=\"0\" background=\"\"></div> <!--  <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"575\"><tr><td id=\"flashcontent\" style=\"width:300;height:100\"><script type=\"text/javascript\"> var fo = new FlashObject(\"picture/pool/en/track_package-e.swf\", \"bannercontainer\", 575, 100, \"7\", \"#FFFFFF\"); fo.addParam(\"quality\", \"high\");fo.write(\"flashcontent\");</script></td></tr></table>--><!-- Content Starts --><script language=\"JavaScript\" type=\"text/javascript\" src=\"js/omnitureSupV2.js\"></script><link href=\"css/style.css\" rel=\"stylesheet\" type=\"text/css\"><script language=\"JavaScript\" type=\"text/javascript\" src=\"js/UIscript_v2.js\"></script><script language=\"JavaScript\" type=\"text/javascript\" src=\"js/zpoolcommon.js\"></script><script language=\"JavaScript\" src='./js/zisa_popup.js'></script><script>function submitReferenceNumber(obj) {if (obj==\"\") return;var formObj = eval(\"document.\" + obj);if (formObj.referenceNumber.value==\"\") {alert('No Reference number was submitted. Please enter a number and click Track.');formObj.referenceNumber.focus();return;}    if (!validateReferenceNumber(formObj.referenceNumber.value)) {        alert('Invalid characters in the input fields. Please check your entries and try again.');        formObj.referenceNumber.focus();        return;    }     var _dateDiff = dateDiff(formObj.startDate.value,                             formObj.endDate.value,                             'YYYY/MM/DD',                             'EN');                                     if (_dateDiff>0) {         alert('The Start date you have selected occurs after the selected End date. Please reselect an earlier Start date by clicking on the calendar icon and resubmit - '+ _dateDiff);        return;    }formObj.referenceNumberPressed.value = 'true';formObj.submit();}function submitPIN(obj) {if (obj==\"\") return;var formObj = eval(\"document.\" + obj);if (!validate(formObj.temp_trkid1.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');formObj.temp_trkid1.focus();return;} if (formObj.temp_trkid1.value==\"\") {alert('No Item number was submitted. Please enter a number and click Track.');formObj.temp_trkid1.focus();return;}formObj.trackingId.value=formObj.temp_trkid1.value;formObj.trackingCode.value='PIN';formObj.referenceNumberPressed.value = 'false';formObj.submit();}function submitDNC(obj) {if (obj==\"\") return;var formObj = eval(\"document.\" + obj);if (!validate(formObj.temp_trkid2.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');formObj.temp_trkid2.focus();return;} if (formObj.temp_trkid2.value==\"\") {alert('No Delivery Notification Card number was submitted. Please enter a number and click Track.');formObj.temp_trkid2.focus();return;}formObj.trackingId.value=formObj.temp_trkid2.value;formObj.trackingCode.value='DNC';formObj.referenceNumberPressed.value = 'false';formObj.submit();}/*********************************    Pin Summary Filter**********************************/function submitPinFilterForm() {if (!validate(document.scemForm.originPostalCode.value) ||!validate(document.scemForm.destPostalCode.value) ||!validate(document.scemForm.startDate.value) ||!validate(document.scemForm.endDate.value) ||!validate(document.scemForm.destProv.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');return;} // Validate Origin Postal Codeif (document.scemForm.originPostalCode.value!=\"\") {fsa = document.scemForm.originPostalCode.value.toUpperCase();document.scemForm.originPostalCode.value = fsa;if (!isPostCode(fsa)){alert('The Postal Code for this item is incorrect. Please re-enter the first three characters of the Originating Postal Code and click Submit.');return;}}// Validate Dest Postal Codeif (document.scemForm.destSearchType[1].checked) {if (document.scemForm.destPostalCode.value!=\"\") {fsa = document.scemForm.destPostalCode.value.toUpperCase();document.scemForm.destPostalCode.value = fsa;if (!isPostCode(fsa)){alert('The Postal Code for this item is incorrect. Please re-enter the first three characters of the Destination Postal Code and click Submit.');return;}}}// Both dates have to existif (document.scemForm.startDate.value!=\"\" && document.scemForm.endDate.value==\"\") {alert('No End Date was selected. Please enter an End Date by clicking on the calendar icon and resubmit');return;}if (document.scemForm.startDate.value==\"\" && document.scemForm.endDate.value!=\"\") {alert('No Start date was selected. Please enter a Start date by clicking on the calendar icon and resubmit');return;}document.scemForm.submit();}/*********************************    Email **********************************/function submitEmail(obj, callValidateEvents) {if (obj==\"\") return false;var frmObj = eval(\"document.\" + obj);var email1=null;var email2=null;var email3=null;var email4=null;(frmObj.email1 != null) ? email1 = frmObj.email1.value : \"\";(frmObj.email2 != null) ? email2 = frmObj.email2.value : \"\";(frmObj.email3 != null) ? email3 = frmObj.email3.value : \"\";(frmObj.email4 != null) ? email4 = frmObj.email4.value : \"\";if ( (email1 == null || email1==\"\") &&  (email2 == null || email2==\"\") && (email3 == null || email3==\"\") && (email4 == null || email4==\"\") ){alert(\"No email address was submitted. Please enter a valid address and click Submit.\");return false;}if (email1 != null && email1!=\"\" && email1.indexOf(\"@\")<0) {alert(\"The email address submitted is not valid. Please re-enter the address and click Submit.\");return false;} if (email2 != null && email2!=\"\" && email2.indexOf(\"@\")<0) {alert(\"The email address submitted is not valid. Please re-enter the address and click Submit.\");return false;}if (email3 != null && email3!=\"\" && email3.indexOf(\"@\")<0) {alert(\"The email address submitted is not valid. Please re-enter the address and click Submit.\");return false;}if (email4 != null && email4!=\"\" && email4.indexOf(\"@\")<0) {alert(\"The email address submitted is not valid. Please re-enter the address and click Submit.\");return false;}if ( callValidateEvents != null && callValidateEvents == true ) {if ( ! validateEvents(obj) ) {return false;}}return true;//formObj.submit();}function validateEvents(obj) {var retVal = true;var frmObj = eval(\"document.\" + obj);var email1=null;var email2=null;var email3=null;var email4=null;(frmObj.email1 != null) ? email1 = frmObj.email1.value : \"\";(frmObj.email2 != null) ? email2 = frmObj.email2.value : \"\";(frmObj.email3 != null) ? email3 = frmObj.email3.value : \"\";(frmObj.email4 != null) ? email4 = frmObj.email4.value : \"\";var count = 0;for ( j=1; j<5; j++ ) {if ( eval(\"email\"+j) != null && eval(\"frmObj.email\"+j).readOnly !=true) {count = 0;if ( eval(\"frmObj.shipEvent\"+j +\" != null && frmObj.shipEvent\"+j +\".checked \") ) {count++;}if ( eval(\"frmObj.exceptionEvent\"+j +\" != null && frmObj.exceptionEvent\"+j +\".checked \") ) {count++;}if ( eval(\"frmObj.deliveryEvent\"+j +\" != null && frmObj.deliveryEvent\"+j +\".checked \") ) {count++;}if ( count == 0 && eval(\"email\"+j).length > 1) {alert(\"Email notifications will NOT be sent unless at least one valid email address AND one event type is selected.\");retVal = false;}}if ( count>0 && eval(\"email\"+j).length == 0) {alert(\"Email notifications will NOT be sent unless at least one valid email address AND one event type is selected.\");retVal = false;}}return retVal;}/*********************************    Email Pin Details**********************************/function submitEmailPinDetails(obj) {if (obj==\"\") return;var formObj = eval(\"document.\" + obj);if (!validate(formObj.fromName.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');return;} var fromEmail=formObj.fromEmail.value;var toEmail=formObj.toEmail.value;var fromName = formObj.fromName.value;if (fromEmail==\"\" ) {alert('Your email is required. Please enter your email address.');return;}if (toEmail==\"\" ) {alert('\"Email To\" is required. Please enter a To address.');return;}if (fromName==\"\" ) {alert('\"Your Name\" is required. Please enter your name.');return;}if (toEmail!=\"\" && toEmail.indexOf(\"@\")<0) {alert('\"Email To\" address is invalid. Please enter a valid email address.');return;}if (fromEmail!=\"\" && fromEmail.indexOf(\"@\")<0) {alert('\"Your email\" address is invalid. Please enter a valid email address.');return;} formObj.submit();}/*********************************    Authorize Signature Use**********************************/function submitPinAuthorization(obj) {if (obj==\"\") return false;var formObj = eval(\"document.\" + obj);if (!validate(formObj.destFSA.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');return false;} if (formObj.destFSA.value==\"\" ) {alert('The Postal Code entered is incorrect. Please re-enter the first three characters of the Destination Postal Code and click Submit.');return false;}formObj.destFSA.value = formObj.destFSA.value.toUpperCase();if (!isPostCode(formObj.destFSA.value)){alert('The Postal Code entered is incorrect. Please re-enter the first three characters of the Destination Postal Code and click Submit.');return false;}//formObj.submit();return true;}/*********************************    Multiple Pin get FSA Use**********************************/function submitGetFSA(obj) {if (obj==\"\") return false;var formObj = eval(\"document.\" + obj);if (!validate(formObj.postalCode.value)) {alert('Invalid characters in the input fields. Please check your entries and try again.');return false;} if (formObj.postalCode.value==\"\" ) {alert('The Postal Code entered is incorrect. Please re-enter the Destination Postal Code and click Submit.');return false;}formObj.postalCode.value = formObj.postalCode.value.toUpperCase();if (!isPostCode(formObj.postalCode.value)){alert('The Postal Code entered is incorrect. Please re-enter the Destination Postal Code and click Submit.');return false;}//formObj.submit();return true;}/*********************************    Validate Postal Code**********************************/function isPostCode(entry){strlen = entry.length;//Ignore space in the middleif (entry.charAt(3)==\" \") {entry = entry.substr(0,3) + entry.substr(4,strlen);strlen = entry.length;}if (strlen != 6 && strlen !=3) {return false;}entry=entry.toUpperCase();if ('ABCDEFGHJKLMNPQRSTUVWXYZ'.indexOf(entry.charAt(0)) < 0) {return false;}if ('0123456789'.indexOf(entry.charAt(1)) < 0) {return false;}if ('ABCDEFGHJKLMNPQRSTUVWXYZ'.indexOf(entry.charAt(2)) < 0) {return false;}if (strlen>3) {if ('0123456789'.indexOf(entry.charAt(3)) < 0) {return false;}if ('ABCDEFGHJKLMNPQRSTUVWXYZ'.indexOf(entry.charAt(4)) < 0) {return false;}if ('0123456789'.indexOf(entry.charAt(5)) < 0) {return false;}}return true;}/******************************Help*******************************/function zHelp(htype,hid,tar){if (htype==\"\") { htype=\"page\"; }    var url = \"help.do;jsessionid=(camtscpce201_PE1_02)ID1667530950DB01987843102264164735End;saplb_*=(camtscpce201_PE1_02)28006950?action=\" + htype + \"&id=\" + hid;        if (tar==\"self\") {window.location.href=url;} else {if (htype==\"element\") {    var winWidth = 313;    var winHeight = 200;    } else {    var winWidth = 613;    var winHeight = 400;    }    iMyWidth = (window.screen.width/2) - ( ( winWidth / 2 ) + 10 );    iMyHeight = (window.screen.height/2) - ( ( winHeight / 2 ) + 50 );     newWindow = window.open(url, \"_blank\", \"location=no,directories=no,status=no,menubar=no,toolbar=no,scrollbars=1,resizable=yes,height=\" + winHeight + \",width=\" + winWidth + \",left=\" + iMyWidth + \",top=\" + iMyHeight + \",screenX=\" + iMyWidth + \",screenY=\" + iMyHeight );    newWindow.focus();    }}</script><!-- start single --><script language=\"JavaScript\" type=\"text/javascript\" src=\"js/omnitureSupV2.js\"></script><script language=\"javascript\">var origSearchTab = \"\";var pinType = \"Single\";document.getElementById(\"theTitle\").text='Canada Post Corporation - Event Management On-line';</script><!-- package tracking --><div class=\"trakingWrap\">  <h1><img src=\"picture/pool/en/tltTrackapackage.gif\" alt=\"Track a package\"></h1>  <div id=\"content\">  <div style=\"width:100%;\"><div style=\"width:100px;float:left;\"><img src=\"picture/pool/en/tltDetailedItemInfo.gif\" alt=\"Results\" width=\"161\" height=\"22\"></div><div style=\"float:right;\" id=\"backButton\"><a href=\"javascript:history.back();\"><img src=\"picture/pool/en/btnBack_of.gif\" onMouseOver=\"this.src='picture/pool/en/btnBack_ov.gif'\" onMouseOut=\"this.src='picture/pool/en/btnBack_of.gif'\" alt=\"Back\"  height=\"22\" border=\"0\"></a></div><div style=\"float:right;\"><a href=\"javascript:switchScenario('basicPinPool.do;jsessionid=(camtscpce201_PE1_02)ID1667530950DB01987843102264164735End;saplb_*=(camtscpce201_PE1_02)28006950?language=en&curentTab=');\"><img src=\"picture/pool/en/btnSearchAgain_of.gif\" onMouseOver=\"this.src='picture/pool/en/btnSearchAgain_ov.gif'\" onMouseOut=\"this.src='picture/pool/en/btnSearchAgain_of.gif'\" alt=\"Search again\"  height=\"22\" border=\"0\"></a></div></div><br style=\"clear:both;height:1px;\"/><p class=\"pool\"><strong>Item Number</strong>:7146410003169091<br /><strong>Product Type</strong>:Expedited Parcels<br/><strong>Service Standard Delivery Date</strong>:2008/10/03<br/><strong>Reference Number 1</strong>:20579<br/><strong>Reference Number 2</strong>:C</p><!--  START error Section  --><!--  END error Section  --><!--  START Header Section --><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" id=\"tableDetailedItemInformation\"><tr class=\"title\"><th class=\"Headercolumn1\">Date of Event</th><th class=\"Headercolumn1\">Time of Event</th><th class=\"Headercolumn1\">Location</th><th class=\"Headercolumn1\">Description</th><th class=\"Headercolumn1\">Retail Location</th><th class=\"Headercolumn1\">Signatory Name</th></tr><!--  END Header Section --><!--  START Detail Section -->        <tr class=\"\"><td class=\"column1 pool\">2008/10/01</td><td class=\"column2 pool\">15:11</td><td class=\"column3 pool\">STE THERESE DE BLAINVILLE, QC </td><td class=\"column4 pool\">An order has been electronically submitted</td><td class=\"column5 pool\">&nbsp;</td><td class=\"column6 pool\">&nbsp;</td></tr>     </table><!--  END Detail Section -->    <!--  START Link Section -->     </p>       <div class=\"link\"><a class=\"pool\" href=\"emailRequestPool.do;jsessionid=(camtscpce201_PE1_02)ID1667530950DB01987843102264164735End;saplb_*=(camtscpce201_PE1_02)28006950?action=displayRequestForm&pinNumber=7146410003169091&trackingID=7146410003169091&codeSet=PIN&productType=Expedited Parcels&expectedDelvDate=2008/10/03&language=en\">Request Delivery Updates by email</a>&nbsp;<a class=\"pool\" href=\"javascript:omniSetupHelp(s,omniLang,1);zHelp('element','requestEmail','pop')\"><img src=\"picture/pool/btnHelp_of.gif\" onMouseOver=\"this.src='picture/pool/btnHelp_ov.gif'\" onMouseOut=\"this.src='picture/pool/btnHelp_of.gif'\" alt=\"Help\" width=\"19\" height=\"19\" border=\"0\"></a></div><div class=\"link\"><a class=\"pool\" href=\"emailRemovePool.do;jsessionid=(camtscpce201_PE1_02)ID1667530950DB01987843102264164735End;saplb_*=(camtscpce201_PE1_02)28006950?action=displayRemoveForm&pinNumber=7146410003169091&trackingID=7146410003169091&codeSet=PIN&productType=Expedited Parcels&expectedDelvDate=2008/10/03&language=en\">Remove Delivery Updates </a>&nbsp;<a class=\"pool\" href=\"javascript:omniSetupHelp(s,omniLang,1);zHelp('element','removeEmail','pop')\"><img src=\"picture/pool/btnHelp_of.gif\" onMouseOver=\"this.src='picture/pool/btnHelp_ov.gif'\" onMouseOut=\"this.src='picture/pool/btnHelp_of.gif'\" alt=\"Help\" width=\"19\" height=\"19\" border=\"0\"></a></div>   <div class=\"link\"><a class=\"pool\" href=\"emailPagePool.do;jsessionid=(camtscpce201_PE1_02)ID1667530950DB01987843102264164735End;saplb_*=(camtscpce201_PE1_02)28006950?action=displayEmailForm&trackingID=7146410003169091&codeSet=PIN&language=en\" >Email This Page</a>&nbsp;<a class=\"pool\" href=\"javascript:omniSetupHelp(s,omniLang,1);zHelp('element','emailPage','pop')\"><img src=\"picture/pool/btnHelp_of.gif\" onMouseOver=\"this.src='picture/pool/btnHelp_ov.gif'\" onMouseOut=\"this.src='picture/pool/btnHelp_of.gif'\" alt=\"Help\" width=\"19\" height=\"19\" border=\"0\"></a></div>     <center>    <table style=\"border:0px;padding:10px;margin-top:20px;\">      <tr>        <td><p class=\"pool\" style=\"background-image:none;\">Please note that this is the most up to date information available in our system.  Our telephone agents have access to the same information presented here.</p></td>      </tr>      <tr><td>&nbsp;</td></tr>      <tr>        <td><p class=\"pool\" style=\"background-image:none;\">If you need assistance, please contact our <a href=\"https://ssl.postescanada-canadapost.ca/business/corporate/about/contact_us/default-e.asp\" class=\"pool\">Customer Service</a> team.</p></td>      </tr>    </table>    </center>  </div>  <div style=\"clear:both\"></div>  <div id=\"footerTrackingWrap\">&nbsp;</div>  </div>  <br/>  <!-- COMMERCIAL BANNER -->      <h1 align=\"center\"><a href=\"http://www.canadapost.ca/business/intsol/sb/ventureone/default-e.asp?source=tap&icid=bn08000589\" onClick=\"trackBanner('bn08000546');\" target=\"_blank\"><img src=\"picture/pool/en/ventureone.jpg\" border=\"none\" /></a></h1><script>//the following removes the back button if there is no browser history //ex. if page is loaded from an email 'deep link' it will open in a new window that will contain no history//so no back button will be displayed.if ( window.history.length == 0 ) { document.getElementById(\"backButton\").style.display=\"none\";} </script><script language=\"javascript\"><!--omniSetupSingleItemResultFromCPC(s, omniLang);--></script><!-- end single --><!-- start multiple --><!-- Content Ends --><div class=\"noindex\"><!-- END CONTENT --><!-- Third column -->  </td>  <td align=\"left\" valign=\"top\"><img src='https://ssl.postescanada-canadapost.ca/library/images/dot.gif' width=\"16\" height=\"1\" border=\"0\" alt=\"\"></img></td></tr></table><!-- end Second column --></td>  <td width=\"138\" valign=\"top\" bgcolor='white'>  <br/></td></tr></table><!-- End Regular Page --><!-- Footer Area --><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"766\"><tr>  <td>    <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"766\">    <tr>      <td valign=\"top\"><a href=\"http://canada.gc.ca/\" target=\"_blank\"><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/footerlogo.gif\" width=\"80\" height=\"38\" border=\"0\" alt=\"To Government of Canada website\"></img></a><img src=\"https://ssl.postescanada-canadapost.ca/library/images/template/footermiddle.gif\" width=\"548\" height=\"38\" border=\"0\" alt=\"\"></img></td>      <td rowspan=\"2\" valign=\"top\">      <img src='https://ssl.postescanada-canadapost.ca/library/images/template/border/lightblue/widepagefooterright.gif' width='138' height='56' border='0' alt=\"\"></img>        <!-- <img src='https://ssl.postescanada-canadapost.ca/library/images/template/border/yellow/footerright-e.gif' width='138' height='56' border='0' alt=\"From anywhere to anyone\"></img>-->            </td>    </tr>    <tr>      <td valign=\"top\">        <table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=100%>        <tr>          <td><img src=\"https://ssl.postescanada-canadapost.ca/library/images/dot.gif\" width=\"15\" height=\"1\" border=\"0\" alt=\"\"></img></td>                      <td nowrap><a href=\"https://ssl.postescanada-canadapost.ca/common/help/default-e.asp\" class=\"legal pool\">Help</a>,</td>            <td nowrap>&nbsp;<a href=\"https://ssl.postescanada-canadapost.ca/common/help/legal-e.asp\" class=\"legal pool\">Legal</a>,</td>            <td nowrap>&nbsp;<a href=\"https://ssl.postescanada-canadapost.ca/common/help/legal-e.asp#copyright\" class=\"legal pool\">Copyright</a>,</td>            <td nowrap>&nbsp;<a href=\"https://ssl.postescanada-canadapost.ca/common/help/privacy-e.asp\" class=\"legal pool\">Privacy</a>,</td>            <td nowrap>&nbsp;<a href=\"https://ssl.postescanada-canadapost.ca/common/corporate/about/contact_us/default-e.asp\" class=\"legal pool\">Contact Us</a></td>                                 <td nowrap width=100% align=right>&copy; 2006 Canada Post Corporation</td>                     </tr>        </table>      </td>    </tr>    </table>  </td></tr></table><!-- END FOOTER -->  <!-- new textonly link code -->    <!--   <img src=\"https://ssl.postescanada-canadapost.ca/library/images/dot.gif\" width=\"15\" height=1 border=0 alt=\"\"><a href=\"https://ssl.postescanada-canadapost.ca/textonly/tools/pol/bin/search-e.asp\"><span class=\"textstyle\">Text Only</span></a> -->  <!-- SiteCatalyst code version: H.7.Copyright 1997-2006 Omniture, Inc. More info available athttp://www.omniture.com --><script language=\"JavaScript\"><!--/************* DO NOT ALTER ANYTHING BELOW THIS LINE ! **************/var s_code=s.t();if(s_code)document.write(s_code)//--></script><script language=\"JavaScript\"><!--if(navigator.appVersion.indexOf('MSIE')>=0)document.write(unescape('%3C')+'\\!-'+'-')//--></script><!--/DO NOT REMOVE/--><!-- End SiteCatalyst code version: H.7. --></div></body></html>"      string


here is the method.

webPageContent = webPageContent.Replace("\r", "").Replace("\n", "").Replace("\t", "");
        Regex pairsRegex = new Regex(@"<strong>(?<name>.*?)</strong>:.*?<b>(?<value>.*?)</b>");
        Regex dateRegex = new Regex(@"Item arrived at postal facility.*<td >(?<submitteddate>[0-9/]*)</td>");

        Match match;

        for (match = pairsRegex.Match(webPageContent); match.Success; match = match.NextMatch()) {
            string name = match.Groups["name"].Value;
            string val = match.Groups["value"].Value;

            // do thing with data
        }

        match = dateRegex.Match(webPageContent);

        if (match.Success) {
            string date = match.Groups["submitteddate"].Value;

            // do date stuff
        }
        return "";

The regExp Is not matching anything.
Did I do something wrong?
0
 
LVL 23

Accepted Solution

by:
Tiggerito earned 500 total points
ID: 22620464
I tested using your original html and all worked fine.

Your new html has a different format so they regex patterns I gave you wont work. e.g. there are no <b> tags!

This would fix your name/value pairs regex:

Regex pairsRegex = new Regex(@"<strong>(?<name>.*?)</strong>:(?<value>.*?)<br");

I can't work out where the date is in your new html, so can't do a regex for that.

Note: this is a problem with scraping. the page is re-designed and your code breaks.
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