Question
I can't get URLs from href attributes. I use this code
Dim url As String = "http://example.com/"
Dim web As New HtmlWeb()
Dim doc As HtmlDocument = web.Load(url)
For Each item As HtmlNode In doc.DocumentNode.SelectNodes("//a/@href")
If Not item Is Nothing Then
Response.Write(item.OuterHtml)
End If
Next
But it doesn't work.
Accepted Answer
Since href is an attribute you need to put it in square brackets []
Remember attributes go in to square brackets when you are searching by them.
//a[@href]
In your case you need to get all //a nodes, then check for HasAttributes("href") and finally, get Attributes("href").
For Each item As HtmlNode In doc.DocumentNode.SelectNodes("//a")
If Not item Is Nothing And item.HasAttributes("href") Then
Response.Write(item.Attributes("href").Value)
End If
Next
Popular Answer
@Sunil I used this method to get demo videos from lynda.com but it not works! and it gets 403 error
HtmlNode videoNode = doc.DocumentNode.SelectSingleNode("//video[@class='player']");
string firstsLink = videoNode.Attributes["data-src"].Value;
List<string> secLink = firstsLink.Split(';').ToList();
videoURL = (secLink[index: 0]);
https://www.lynda.com/mocha-tutorials/mocha-5-Essential-Training/601820-2.html
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