[2005] How to update XML Innertext on empty node?

I have nodes that can be empty in my XML Document.

Example:

<mydoc>
<attachment></attachment>
<mydoc>

The attachment node may or may not be empty depending upon if there is an attachment.

How do I update the innertext, as of now the code below throws an null exception:

Code:

---

    Public Sub SetXMLArgsValue(ByVal ConfigName As String, ByVal NewValue As Integer)
        Dim Node As String
        Dim xmlDoc As New XmlDocument
        Dim xmlNode As XmlNode

        Try
            'load document
            xmlDoc.Load(Application.StartupPath & "\Config.xml")
            'set node base
            Node = "/mydoc/" & ConfigName
            'get node
            xmlNode = xmlDoc.SelectSingleNode(Node)
            'get node value
            xmlNode.InnerText = NewValue'<----exception thrown here
            'save
            xmlDoc.Save(Application.StartupPath & "\Config.xml")
        Catch ex As Exception
            Throw New Exception(ex.Message & " - SetXMLConfigValue")
        Finally
            xmlNode = Nothing
            xmlDoc = Nothing
        End Try
    End Sub

---

put a break point on this line:

xmlNode.InnerText = NewValue'<----exception thrown here

then run your code. When the code breaks on that line, add a watch to xmlNode, and make sure that is not is what is null.

There should not be a problem assigning innerttext to a node so long as the node is a valid node.

kleinma, false alarm. Seems when accessing elements this way, it is "Case Sensitive". I was passing in "GopClosed" and the element in XML is "GOPClosed".

Thanks for the help.

Just for future reference. XML is and always has been case sensitive. Always. So "when accessing elements this way..." should actually read "when accessing elements in any way..."

-tg