Where can I find a tutorial on parsing html elements?
I'm still learning the ropes in VB.NET and I'm currently up to a point in a current project where I would need to parse links on an html website once the information has been downloaded to the document completed section of my web browser.
Does anyone know of a guide/tutorial that is newbie friendly?
Thanks
Re: Where can I find a tutorial on parsing html elements?
There are a few options:
- Depending on how complex of string manipulation you are doing you might be able to get away with the methods available in the String class
- Use a third party library like the Html Agility Pack
- If you don't want to use a third party library you could also use Regular Expressions, which if you google, will get a lot of hits
Re: Where can I find a tutorial on parsing html elements?
The HTML Agility Pack is great for this.
I also cover a lot of Web Scraping stuff on my blog (see sig).
Re: Where can I find a tutorial on parsing html elements?
43 regex get the string in a defined middle
Code:
Imports System
Imports System.Text.RegularExpressions
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim mCollect As MatchCollection = Regex.Matches("sjlfhal{yes}djklafh{yess}", "(?<={).*?(?=})", RegexOptions.IgnoreCase)
For Each m As Match In mCollect
MsgBox(m.Value)
Next
End Sub
End Class
' output : yes yess