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Reading attribute from XML using VB.Net

Posted on 2010-09-23
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Last Modified: 2012-05-10
I need help reading a value from an XML.

Below is the XML I am using.

  <?xml version="1.0" encoding="ISO-8859-1" ?>
- <Documents xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="ReadsoftInvoice.xsd">
- <Document Version="1.0" Name="XML Invoice" Type="Invoice" DocumentReference="252E00010.TIF" ImageReference="" CertificateReference="">
- <Invoice>
- <Supplier>
  <Name>ox2p</Name>
  <Identifier />
  <Number />
  <Description />
  <CorporateGroupNumber />
  <POBox />
  <Street />
  <StreetSupplement />
  <PostalCode />
  <City />
  <CountryCode />
  <CountryName />
  <TelephoneNumber />
  <FaxNumber />
  <VATRegistrationNumber />
  </Supplier>
- <Buyer>
  <Name>SHIRE</Name>
  <Identifier />
  <Number>1</Number>
  <Description />
  <CorporateGroupNumber>1</CorporateGroupNumber>
  <POBox />
  <Street />
  <StreetSupplement />
  <PostalCode />
  <City />
  <CountryCode>USA</CountryCode>
  <CountryName />
  <TelephoneNumber />
  <FaxNumber />
  <VATRegistrationNumber />
  </Buyer>
- <Fields>
  <Field Name="Debit/Credit" Type="invoicecredit">Debit</Field>
  <Field Name="InvoiceNumber" Type="invoicenumber">461</Field>
  <Field Name="InvoiceDate" Type="invoicedate">20100909</Field>
  <Field Name="Currency" Type="invoicecurrency">GBP</Field>
  <Field Name="PONumber" Type="invoiceordernumber">8000046100</Field>
  <Field Name="ShireLegalEntityName" Type="shire legal entity name">Shire Pharmaceuticals Services Ltd</Field>
  <Field Name="IBAN" Type="iban">GB97LOYD30904201447694</Field>
  <Field Name="SortCode" Type="sortcode">30-90-42</Field>
  <Field Name="UtilityAccountNumber" Type="utility account number" />
  <Field Name="Freight" Type="freight">0.00</Field>
  <Field Name="AdditionalCharges" Type="additional charges">0.00</Field>
  <Field Name="TotalFreight" Type="total freight">0.00</Field>
  <Field Name="BankAccount" Type="supplieraccountnumber1">1447694</Field>
  <Field Name="RemitToZipCode" Type="supplieraddresspostalcode">OX16 9UX</Field>
  <Field Name="NetAmount" Type="invoicetotalvatexcludedamount">8490.00</Field>
  <Field Name="VATAmount" Type="invoicetotalvatamount">1485.75</Field>
  <Field Name="TotalAmount" Type="invoicetotalvatincludedamount">9975.75</Field>
  <Field Name="VatRegNum" Type="vatregnumbers">630 5503 74</Field>
  </Fields>
- <Tables>
- <Table Type="LineItem">
- <TableRow>
  <Field Name="Description" Type="lit_articlename">Part payment for EuSEM Stockholm 2010</Field>
  <Field Name="Quantity" Type="lit_deliveredquantity" />
  <Field Name="UnitPrice" Type="lit_deliveredquantityunitcode" />
  <Field Name="ExtendedAmount" Type="extended amount">8 490.00</Field>
  </TableRow>
  </Table>
  <Table Type="BankAccountTable" />
  <Table Type="VATTable" />
  </Tables>
  </Invoice>
- <System>
  <Field Type="Pages">\\indylab-readsof\Shire\Output\SP_UK\252E00010.000</Field>
  <Field Type="Appendices" />
  <Field Type="BatchDateTime" />
  <Field Type="BatchPrefix" />
  <Field Type="BatchNumber" />
  <Field Type="BatchIndex">0</Field>
  <Field Type="DateTime">20100909 08:59:36</Field>
  <Field Type="Currency">GBP</Field>
  <Field Type="CreditInvoice">false</Field>
  <Field Type="Description" />
  <Field Type="Originator" />
  <Field Type="Title" />
  <Field Type="Identification" />
  <Field Type="ImageFile1">\\indylab-readsof\Shire\Output\SP_UK\252E00010.000</Field>
  <Field Type="ImageFile2">\\indylab-readsof\Shire\Output\SP_UK</Field>
  <Field Type="NumberOfPages">1</Field>
  <Field Type="NumberOfPagesFrontAndBack">1</Field>
  <Field Type="NumberOfInvoicePages">1</Field>
  <Field Type="NumberOfInvoicePagesFrontAndBack">1</Field>
  <Field Type="NumberOfAppendixPages">0</Field>
  <Field Type="NumberOfAppendixPagesFrontAndBack">0</Field>
  <Field Type="ProfileName">SP_UK</Field>
  <Field Type="EndorserNumber" />
  <Field Type="Status">Approved</Field>
  <Field Type="Supplier">ox2p</Field>
  <Field Type="SupplierDescription" />
  <Field Type="UserName">Tiffany Glines</Field>
  <Field Type="UserRemark" />
  <Field Type="GUID">{721CEF15-F6E5-4DA2-BCE1-1C818247D921}</Field>
  </System>
- <ProcessLog>
- <ProcessMessage>
  <TimeStamp>2010-09-09 08:59:50</TimeStamp>
  <Type>System</Type>
  <Module>Interpret</Module>
  <Action>Interpreted</Action>
  <Owner>administrator</Owner>
  <sMessage />
  </ProcessMessage>
- <ProcessMessage>
  <TimeStamp>2010-09-09 09:37:55</TimeStamp>
  <Type>System</Type>
  <Module>Verify</Module>
  <Action>Approved</Action>
  <Owner>Tiffany Glines</Owner>
  <sMessage />
  </ProcessMessage>
  </ProcessLog>
  </Document>
  </Documents>

I am able to read the name value from this section;

- <Invoice>
- <Supplier>
  <Name>ox2p</Name>

using this cose;

Dim doc As New XmlDocument
        doc.Load("C:\Shire\UK\UK\1D789FA5_C7DD_4192_81B1_98BDECBBA861.xml")
        For Each node As XmlNode In doc.SelectNodes("//Invoice")
            Dim SupplierName As String = ""
            Dim supplier As XmlNode = node.SelectSingleNode("Supplier/Name")
            If Not supplier Is Nothing Then
                SupplierName = supplier.InnerText()
            End If
            spl = SupplierName
        Next node

However I also need to be able to verify the supplier name in the following section and I cannot figure out how to do it.

<System>
  <Field Type="Pages">\\indylab-readsof\Shire\Output\SP_UK\252E00010.000</Field>
  <Field Type="Appendices" />
  <Field Type="BatchDateTime" />
  <Field Type="BatchPrefix" />
  <Field Type="BatchNumber" />
  <Field Type="BatchIndex">0</Field>
  <Field Type="DateTime">20100909 08:59:36</Field>
  <Field Type="Currency">GBP</Field>
  <Field Type="CreditInvoice">false</Field>
  <Field Type="Description" />
  <Field Type="Originator" />
  <Field Type="Title" />
  <Field Type="Identification" />
  <Field Type="ImageFile1">\\indylab-readsof\Shire\Output\SP_UK\252E00010.000</Field>
  <Field Type="ImageFile2">\\indylab-readsof\Shire\Output\SP_UK</Field>
  <Field Type="NumberOfPages">1</Field>
  <Field Type="NumberOfPagesFrontAndBack">1</Field>
  <Field Type="NumberOfInvoicePages">1</Field>
  <Field Type="NumberOfInvoicePagesFrontAndBack">1</Field>
  <Field Type="NumberOfAppendixPages">0</Field>
  <Field Type="NumberOfAppendixPagesFrontAndBack">0</Field>
  <Field Type="ProfileName">SP_UK</Field>
  <Field Type="EndorserNumber" />
  <Field Type="Status">Approved</Field>
  <Field Type="Supplier">ox2p</Field>
  <Field Type="SupplierDescription" />
  <Field Type="UserName">Tiffany Glines</Field>
  <Field Type="UserRemark" />
  <Field Type="GUID">{721CEF15-F6E5-4DA2-BCE1-1C818247D921}</Field>
  </System>

I appreciate any help you can give me on this.
0
Comment
Question by:dthillsr
  • 3
4 Comments
 
LVL 17

Expert Comment

by:nepaluz
ID: 33744286
To verify the supplier name in the second section, try:
Your value should be ngd(0).tostring

0
 
LVL 17

Expert Comment

by:nepaluz
ID: 33744291
heres the code:
Dim StockDoc As XDocument = XDocument.Load("C:\Shire\UK\UK\1D789FA5_C7DD_4192_81B1_98BDECBBA861.xml")
Dim ngd = From pk In StockDoc.Root.Descendants("Field") Where pk.@<Type> = "Supplier" Select pk.Value

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0
 
LVL 17

Accepted Solution

by:
nepaluz earned 50 total points
ID: 33744436
Both your queries could be resolved with the following:

Both ngf(0).ToString and ngd(0).ToString produce a value of ox2p
PS. I had to remove the encoding="ISO-8859-1" from the xml header to continue.
 

Dim StockDoc As XDocument = XDocument.Load("C:\Shire.xml")
Dim ngf = From kp In StockDoc.Root.Descendants("Supplier") Select kp.<Name>.Value
Dim ngd = From pk In StockDoc.Root.Descendants("Field") Where pk.@<Type> = "Supplier" Select pk.Value

Open in new window

0
 

Author Closing Comment

by:dthillsr
ID: 33746500
The answer by nepaluz answered my question. The others did not because I failed to mention on my part that I will have to look through several hundred xml's so I would not be able to load the exact xml name. I appreciate everyones help in this matter
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