Extract Infopath xml from workflow tasks

[blevitt]

We have some infopath workflow forms associated to task items in sharepoint.
Unlike a form xml document associated to a document library, workflow task
data is stored in fields on the task or in an ExtendedProperty field. Using
an instance of the XmlFormView control and borrowing some ideas from the
WrkTaskIP.aspx page, I have been able to retrieve this data from the
XmlFormView by using:

XmlFormControl.XmlForm.DataSources[""].CreateNavigator();

However I can't help wondering if there is a better way? Loading a web
control to do this only to get the data out and throw the control away seems
like an indirect root.

[spconsultant]

use the XML methods, then selct the information from the needed notes
(Select SIngle Node)

myListItem = workflowProperties.Item
myFormStream = myListItem.File.OpenBinaryStream
myXMLFormDocument = New XmlDocument
myXMLFormDocument.PreserveWhitespace = True
myXMLFormDocument.Load(myFormStream)

[blevitt]

the 'File' property is null.

this is what the WrkTaskIPPage class does...

string workflowData = SPWorkflowTask.GetWorkflowData(this.m_task);
if (!string.IsNullOrEmpty(workflowData) &&
(IPPage.FindDataObject(this.XmlFormControl.XmlForm.DataSources,
"ItemMetadata") != null))
{

IPPage.PopulateDataObject(this.XmlFormControl.XmlForm.DataSources["ItemMetadata"], workflowData);
}

After the XmlFormControl is bound and goes thru it's lifecycle, the
recognizable xml data is the available thru...
XmlFormControl.XmlForm.DataSources[""].CreateNavigator();

However, in order to get this data, I'm wrapping the XmlFormView control in
a web service and overriding the render method which is less than ideal.