Question

The img src that I need to grab is:

div id="recaptcha_image" class="width: 300px; height: 57px;" style="width: 300px; height: 57px;">
<img width="300" height="57" src="http://www.google.com/recaptcha/api/image?c=03AHJ_VuvlvMA4JvVIQvDR4C_iDbOTwOF5FUIRPGkkSImDRYAD6sY2L0IxyJSpSP1WGjWqr0MQ-dmjkiIgevFY2gkMpNWi1cQbtgUZB5QaYr_vIHv6xFzG9ydFbBWs4xiEhWoxHEFUYHZj6CCh4obyZSOd2La0nozLZw" style="display:block;">

Here is my code that grabs all the img src tags from any website. The one thing is the img src that I need isn’t listed in the returned results.

How can I correct my code to grab only this one field? Here is my working program…currently is doesn’t load a pic into the picturebox…but it does return the results in the rich text box. Thanks

Dim s As String = TextBox1.Text

Dim hw As New HtmlWeb()
Dim doc As HtmlDocument = hw.Load(s)

Dim items As HtmlNodeCollection = doc.DocumentNode.SelectNodes("//img")
If items Is Nothing Then
    MessageBox.Show("There is nothing to show you")
End If
If items IsNot Nothing Then
    For Each item As HtmlNode In items
        RichTextBox2.Text = RichTextBox2.Text & (item.GetAttributeValue("src", "value") & Environment.NewLine)
        'PictureBox1.Load(item.GetAttributeValue("src", TextBox1.Text & "value"))

    Next

Answer 1

Without the complete HTML it is difficult to say, but if you want the src for this specific img you can use the following in SelectNodes (which should probably be changed to SelectSingleNode).

doc.DocumentNode.SelectSingleNode("//div[@id='recaptcha_image']/img[1]").Attributes("src").Value

The above will return the src String for the img tag.