Given the following code:

<code>
XmlDocument doc = new XmlDocument();
string sInnerXml = "abc<i>def</i>ghi";
doc.LoadXml("<doc1
xmlns="myNamespace"><tag1>ABC</tag1><tag2>DEF</tag2></doc1>");
doc.FirstChild.FirstChild.InnerText = sInnerXml;
string resultXml = doc.FirstChild.OuterXml;
</code>

I have the problem that the resultXml looks like:

<xml-doc>
<doc1 xmlns="myNamespace">
  <tag1>abc<i xmlns="myNamespace">def</i>ghi</tag1>
  <tag2>DEF</tag2>
</doc1>
</xml-doc>

The problem being that the <i> tag within <tag1> has an xmlns attribute. 
How can I get rid of it while keeping the namespace for the document as a
whole?

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