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VB.NET Help Me Parse This XML

Posted on 2014-10-02
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Last Modified: 2014-10-02
I need to parse this xml and set each node value to a variable.

<output xmlns="http://www.upcdatabase.org/">
<valid>true</valid>
<number>0111222333446</number>
<itemname>UPC Database Testing Code</itemname>
<alias>Testing Code</alias>
<description>http://upcdatabase.org/code/0111222333446</description>
<avgprice>123.45</avgprice>
<rate_up>6</rate_up>
<rate_down>0</rate_down>
</output>

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 Dim upcValid As Boolean = 
 Dim upcNumber As String = 
 Dim upcItemname As String = 
 Dim upcAlias As String = 
 Dim upcDescription As String = 
 Dim upcAvgPrice As Decimal = 

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Question by:FamousMortimer
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4 Comments
 
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Expert Comment

by:plusone3055
ID: 40357218
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LVL 63

Accepted Solution

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Fernando Soto earned 500 total points
ID: 40357445
Hi FamousMortimer;

This code snippet should do what you need.

'' Load the XML into memory. Change the path and file name to what you need
Dim xdoc As XDocument = XDocument.Load("C:\Working Directory\output.xml")
'' If the XML is already in memory as a string then use this line to load it 
'' to an XML document.
Dim xdoc As XDocument = XDocument.Parse(XmlVariableNameHere)
'' Get a reference to the xml name space
Dim ns As XNamespace  = xdoc.Root.Name.Namespace

'' Query the XML document to parse the values. The results of the query will 
'' be placed into a class called OutputData, you can modify to your needs
Dim result  As OutputData = (From o in xdoc.Descendants(ns + "output") _
                             Select New OutputData With { _
                                .upcValid = If(o.Element(ns + "valid").Value = "true", True, False), _
                                .upcNumber = o.Element(ns + "number").Value, _
                                .upcItemname = o.Element(ns + "itemname").Value, _
                                .upcAlias = o.Element(ns + "alias").Value, _
                                .upcDescription = o.Element(ns + "description").Value, _
                                .upcAvgPrice = Decimal.Parse(o.Element(ns + "avgprice").Value) _
                             }).FirstOrDefault()

    '' Test to see if you have result
    If result IsNot Nothing Then                  
        '' Process result here
        '' result.upcValid
        '' ....
        '' result.upcAvgPrice                             
    End If                                        

'' Class to hold the results
Public Class OutputData
    Public Property upcValid As Boolean 
    Public Property upcNumber As String 
    Public Property upcItemname As String
    Public Property upcAlias As String
    Public Property upcDescription As String
    Public Property upcAvgPrice As Decimal 
End Class

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Author Closing Comment

by:FamousMortimer
ID: 40357495
Thank you very much.
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LVL 63

Expert Comment

by:Fernando Soto
ID: 40357594
Not a problem, glad to help.
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