XmlDocument.InnerXml is null, but InnerText is not
I'm using XmlDocument
and XmlElement
to build a simple (but large) XML document that looks something like:
<Widgets>
<Widget>
<Stuff>foo</Stuff>
<MoreStuff>bar</MoreStuff>...lots more child nodes
</Widget>
<Widget>...lots more Widget nodes
</Widgets>
My problem is that when I'm done building the XML, the XmlDocument.InnerXml
is null, but the InnerText
still shows all the text of all the child nodes.
Has anyone ever seen a problem like this before? What kind of input data would cause these symptoms? I expected the XmlDocument
to just throw an exception if it was given bad data.
Note: I'm pretty sure this is related to the input data as I can only reproduce it against certain data sets. I also tried escaping the data with SecurityElement.Escape but it made no difference.
EDIT Here's the code I'm using to build the XML:
Private Function BuildXml(widgets as ICollection(Of MyNamespace.Widget)) As String
Dim xDoc As New XmlDocument
Dim parentNode As XmlElement = xDoc.CreateElement("Widgets")
xDoc.AppendChild(parentNode)
For Each w as Widget in widgets
Dim widgetNode As XmlElement = xDoc.CreateElement("Widget")
widgetNode.AppendChild(CreateElement(x开发者_如何学PythonDoc, w.Stuff, "Stuff"))
// lots more...
parentNode.AppendChild(widgetNode)
Next
Return xDoc.OuterXml
End Function
Private Function CreateElement(ByVal xDoc As XmlDocument, ByVal value As String, ByVal elementName As String) As XmlElement
Dim element As XmlElement = xDoc.CreateElement(elementName)
element.InnerText = System.Security.SecurityElement.Escape(value)
Return element
End Function
have you tried normalizing the XMLDocument after you add all the elements and before trying to read the InnerXml or OuterXML?
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