VB.NET ~ Need help parsing XML loaded in richtextbox (loaded from URL)

I have two rich text boxes, and two buttons on my screen. The first button grabs HTML from a URL and then converts the HTML to XML which resides in rich text box 1.

The second button is to grab the XML from the rich text box1 and then parse it to grab all the input elements by their ID.

My issue is that my parser isn't doing anything. My guess is that I'm not quite getting the XML from the first rich text box.

What would be the best way to grab the XML from a rich text box load it into memory and then parse the XML to grab all the ID tags?

Here is my code -- Thanks for any help.

Code:

---

    Imports mshtml
    Imports System.Text
    Imports System.Net
    Imports System.Xml
    Imports System.IO
    Imports System.Xml.XPath
 
    Public Class Scraper
 
        Private Sub Scraper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        End Sub
 
        Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
            '  Note: This example uses two Chilkat products: Chilkat HTTP
            '  and Chilkat HTML-to-XML.  The "Chilkat Bundle" can be licensed
            '  at a price that is less than purchasing each product individually.
            '  The "Chilkat Bundle" provides licenses to all existing Chilkat components.  Also, new-version upgrades are always free.
 
            Dim http As New Chilkat.Http()
 
            '  Any string argument automatically begins the 30-day trial.
            Dim success As Boolean
            success = http.UnlockComponent("30-day trial")
            If (success <> True) Then
                TextBox1.Text = TextBox1.Text & http.LastErrorText & vbCrLf
                Exit Sub
            End If
 
            Dim html As String
            html = http.QuickGetStr("http://www.quiltingboard.com/register.php")
            If (html = vbNullString) Then
                TextBox1.Text = TextBox1.Text & http.LastErrorText & vbCrLf
                Exit Sub
            End If
 
            Dim htmlToXml As New Chilkat.HtmlToXml()
 
            '  Any string argument automatically begins the 30-day trial.
            success = htmlToXml.UnlockComponent("30-day trial")
            If (success <> True) Then
                TextBox1.Text = TextBox1.Text & htmlToXml.LastErrorText & vbCrLf
                Exit Sub
            End If
 
            '  Indicate the charset of the output XML we'll want.
            htmlToXml.XmlCharset = "utf-8"
 
            '  Set the HTML:
            htmlToXml.Html = html
 
            '  Convert to XML:
            Dim xml As String
            xml = htmlToXml.ToXml()
 
            '  Save the XML to a file.
            '  Make sure your charset here matches the charset
            '  used for the XmlCharset property.
            htmlToXml.WriteStringToFile(xml, "out.xml", "utf-8")
 
            RichTextBox1.Text = xml
        End Sub
 
        Private Sub LoopThroughXmlDoc(ByVal nodeList As XmlNodeList)
            For Each elem As XmlElement In nodeList
                If elem.HasChildNodes Then
                    LoopThroughXmlDoc(elem.ChildNodes)
                Else
                    '' Extract the information
                    If elem.HasAttribute("id") Then
                        'elem.Attributes("AssetID").Value.ToString()
                    ElseIf elem.HasAttribute("name") Then
                        'elem.Attributes("AttributeID").Value.ToString()
                    End If
                End If
            Next
        End Sub
 
        Private Sub Button2_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
            Dim doc As XmlDocument = New XmlDocument
            doc.Load("xmlFile.xml")
            Dim nodeList As XmlNodeList = doc.GetElementsByTagName("input")
            LoopThroughXmlDoc(nodeList)
        End Sub
    End Class

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:wave:

well because you're writing the xml out to one file:
htmlToXml.WriteStringToFile(xml, "out.xml", "utf-8")
and reading from a completely different file:
doc.Load("xmlFile.xml")

you're not using the RTB for anythign other than displaying the xml at the end of the Button1_Click event.

-tg