InfoPath Dev

I'm trying to get the current row in the repeating table programmatically, to update the rows' elements for InfoPath 2007 To do this I'm using the following code: MainDataSource.CreateNavigator().SelectSingleNode("my:myFields/my:timesheetEntries/my:item/my:project[current()]", NamespaceManager).SetValue(firstItemName); This will select the current element and set the value. But, I get the following error "XsltContext is needed for this query because of an unknown function" The issue in "current()" statement. I tried to google but from all posts I seen there are no workarounds how to make it working.

 The current() function can't be used in code like this, and there is no concept of a "current" row when you're accessing the XML from code.  What would you expect current() to indicate in this situation?

I would expect that current() returns me the row where I operate. If it can't be used in this content, what is the solution to access the elements in the nearby column for the current row?!

One of the properties of the event object (eventObj.Source, or something along those lines) should give you a reference to the node or row where the event occurred.  From there you can use relative XPath to get at the node you want.

It gives the reference to the current row, right, but not to the DataSource of the actual controls in this row :( And I have not idea how to access the control's items for the row

For example, I'm using item_changed event, that is fired when we add/remove new row in repeating table. One of the parameters provide access to the XmlNavigation elements of the current row, so I'm using e.Site.SelectSingleNode("my:sections", NamespaceManager) to read the selected value from that control.

But how to access the actual control to populate its values?! Somehow I need to get the access to the DataSource of control in the curren row. *_change events don't provide the access to dataSourcea

 You can't access controls directly.  The only way to modify InfoPath data in code is to use the variety of XML manipulation methods made available by XPathNavigator.

Any samples/guidelines how to achieve this?!

 http://msdn.microsoft.com/en-us/library/bb509311.aspx#InfoPath2007XPathNavigatorClassFormTemplates_WorkingWithCurrentNode