How do i save a Diffgram back to SQL Server using ADO.NET and C#? Here is the diffgram i want to save:

<?xml version = "1.0" encoding="Windows-1252" standalone="yes"?>
<root xmlns:updg="urn:schemas-microsoft-com:xml-updategram">
	<updg:sync>
		<updg:before>
			<testtable>
				<descr>BEFORE CHANGE</descr>
				<identity_column>5</identity_column>
			</testtable>
		</updg:before>
		<updg:after>
			<testtable>
				<descr>AFTER CHANGE</descr>
				<identity_column>5</identity_column>
			</testtable>
		</updg:after>
	</updg:sync>
</root>