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I am trying to code a way using webBrowser1 to get a hold of of a download link via href, but the problem is I must find it using its class name.
<body>
<iframe scrolling="no" frameborder="0" allowtransparency="true" tabindex="0" name="twttrHubFrame" style="position: absolute; top: -9999em; width: 10px; height: 10px;" src="http://platform.twitter.com/widgets/hub.html">
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<div id="main">
¶→
<div id="header">
<div style="float:left;">
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<div id="content">
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<h1 style="background-image:url('http://static.mp3skull.com/img/bgmen.JPG'); background-repeat:repeat-x;">Rush·Mp3·Download</h1>
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<a id="bitrate" onclick="document.getElementById('ofrm').submit(); return false;" rel="nofollow" href="">
<form id="ofrm" method="POST" action="">
¶→¶→→
<div id="song_html" class="show1">
¶→→→
<div class="left">
¶→→→
<div id="right_song">
¶→→→→
<div style="font-size:15px;">
¶→→→→
<div style="clear:both;"></div>
¶→→→→
<div style="float:left;">
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<div style="float:left; height:27px; font-size:13px; padding-top:2px;">
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<div style="float:left; width:27px; text-align:center;">
¶→→→→→→
<div style="margin-left:8px; float:left;">
<a style="color:green;" target="_blank" rel="nofollow" href="http://dc182.4shared.com/img/1011303409/865387c9/dlink__2Fdownload_2F6QmedN8H_3Ftsid_3D20111211-54337-a79f8d10/preview.mp3">Download</a>
</div>
·¶→→→→→→
<div style="margin-left:8px; float:left;">
¶→→→→→→
<div style="margin-left:8px; float:left;">
·¶→→→→→→
<div style="clear:both;"></div>
¶→→→→→
</div>
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<div id="player155580779" class="player" style="float:left; margin-left:10px;"></div>
¶→→→→
</div>
→¶→→→→
<div style="clear:both;"></div>
¶→→→
</div>
¶→→→
<div style="clear:both;"></div>
¶→→
</div>
I looked and searched all over google, but I found PHP examples?
I understand you would do something along the lines of this
HtmlElement downloadlink = webBrowser1.Document.GetElementById("song_html").All[0];
URL = downloadlink.GetAttribute("href");
but I do not understand how to do it by the class "show1".
Please point me in the right direction with examples and/or a website I can visit so I can learn how to do this as I searched and have no clue.
EDIT: I pretty much need the href link ("http://dc182.4shared.com/img/1011303409/865387c9/dlink__2Fdownload_2F6QmedN8H_3Ftsid_3D20111211-54337-a79f8d10/preview.mp3"), so how would I obtain it?
437
Extension Method for HtmlDocument
Returns a list of elements with a particular tag, which coincides with the given className
It can be used to capture the elements only on the tag, or only by class name
internal static class Utils
{
internal static List<HtmlElement> getElementsByTagAndClassName(this HtmlDocument doc, string tag = "", string className = "")
{
List<HtmlElement> lst = new List<HtmlElement>();
bool empty_tag = String.IsNullOrEmpty(tag);
bool empty_cn = String.IsNullOrEmpty(className);
if (empty_tag && empty_cn) return lst;
HtmlElementCollection elmts = empty_tag ? doc.All : doc.GetElementsByTagName(tag);
if (empty_cn)
{
lst.AddRange(elmts.Cast<HtmlElement>());
return lst;
}
for (int i = 0; i < elmts.Count; i++)
{
if (elmts[i].GetAttribute("className") == className)
{
lst.Add(elmts[i]);
}
}
return lst;
}
}
Usage:
WebBrowser wb = new WebBrowser();
List<HtmlElement> lst_div = wb.Document.getElementsByTagAndClassName("div");// all div elements
List<HtmlElement> lst_err_elmnts = wb.Document.getElementsByTagAndClassName(String.Empty, "error"); // all elements with "error" class
List<HtmlElement> lst_div_err = wb.Document.getElementsByTagAndClassName("div", "error"); // all div's with "error" class
There is nothing built-in in the WebBrowser control to retrieve an element by class name. Since you know it is going to be an a element the best you can do is get all a elements and search for the one you want:
var links = webBrowser1.Document.GetElementsByTagName("a");
foreach (HtmlElement link in links)
{
if (link.GetAttribute("className") == "show1")
{
//do something
}
}
I followed up these answers and make my method to hide div by class name.
I shared for whom concern.
public void HideDivByClassName(WebBrowser browser, string classname)
{
if (browser.Document != null)
{
var byTagName = browser.Document.GetElementsByTagName("div");
foreach (HtmlElement element in byTagName)
{
if (element.GetAttribute("className") == classname)
{
element.Style = "display:none";
}
}
}
}
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