InfoPath 2007 - adding an attribute and childNodes through Managed Code - infopath-2007

Question

I’m converting my InfoPath 2003 Object Model Codes to InfoPath 2007 Managed Code, I want to add an attribute and childNodes to a section of form on form load event (FormEvents_Loading). I want to update the following section:
I was to add an attribute to mstns:SpecificBook node and a few child node. The result should be:
My InfoPath 2003 Object Model code
To Adding and Set attribute values:
flag = TheXDocument.DOM.createAttribute("active")
prereqsNode.attributes.setNamedItem(flagNode).text = "true"
newNode = doc.CreateNode(NodeTypeElemt, FromNamespacePrefix, "Book",FormNamespace)
specificBookAttrib = newNode.OwnerDocument.CreateAttribute("BookId")
specificBookIdAttrib.Value = “anybook”
newNode.Attributes.Append(specificBookIdAttrib)
SpecificBookNode.AppendChild(newNode)
Can anybody help me convert the line above use Manage code?

Answer 1

Since I could create a new attribute because the sampledata.xml had a default value although my Template.xml have none; I could not it set that value because it read only.
prereqsNode = navigator.SelectSingleNode (“//mstns:SpecificBook”, Me.NamespaceManager)
*Error “Duplicate attribute”
prereqsNode.CreateAttribute("", "areLoaded", "", "true")
Error “Read only”
prereqsNode.SetValue("true")*
I decided to create a new XmlDocument:
create a new attribute replace the
entire mstns:SpecificBook node
I also used XmlDocument to create the childNodes, convert the node to navigator and then append childNodes.
Dim doc As XmlDocument = New XmlDocument
Dim newNode As XmlNode
Dim activeAttrib As XmlAttribute
activeAttrib = newNode.OwnerDocument.CreateAttribute("active")
activeAttrib.Value = True
newNode.Attributes.Append(activeAttrib)
specificBookNode.ReplaceSelf(newNode.OuterXml)