In one of the prototypes I was working on I had to programmatically populate an InfoPath form with data.

After loading the required data and serializing it to the required schema I thought calling “thisXDocument.DOM.loadXML(strXmlData)” should do the job of populating the form with the data.

That call, however, triggers a “The DOM can’t be loaded twice” error.

After a quick search in the SDK help I came up with the following solution (which merges two DOMs):

IXMLDOMDocument newDOM = thisXDocument.CreateDOM();
newDOM.loadXML(strXmlData);
thisXDocument.ImportDOM(newDOM);

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Tags: InfoPath, Microsoft Office, OBA