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<?xml-stylesheet type="text/xsl" href="https://www.infopathdev.com:443/utility/FeedStylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Data Connections</title><link>https://www.infopathdev.com:443/forums/44.aspx</link><description> </description><dc:language>en</dc:language><generator>CommunityServer 2007 SP3 (Build: 31118.962)</generator><item><title>Re: How to query for a null value?</title><link>https://www.infopathdev.com:443/forums/thread/68661.aspx</link><pubDate>Sun, 24 Jul 2011 20:33:54 GMT</pubDate><guid isPermaLink="false">033a2e2d-04e2-4a9d-be01-a4634161eefd:68661</guid><dc:creator>Patrick Halstead</dc:creator><slash:comments>0</slash:comments><comments>https://www.infopathdev.com:443/forums/thread/68661.aspx</comments><wfw:commentRss>https://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=44&amp;PostID=68661</wfw:commentRss><description>&lt;p&gt;If your SharePoint list is small (&amp;lt;200 items), I recommend just loading the entire thing and filtering the data based on a rule. There are many rule conditions and you should be able to easily select items with blank values for the column in question.&lt;/p&gt;
&lt;p&gt;If you have a larger set, you can use OData (ShP2010) or filterowssvr (MOSS 2007) to filter on the server. The latter will require code behind or Qdabra&amp;#39;s qRules which has a fiterowssvr command that you can easily access via a set-value command in a rule. OData is a very powerful way to access list data in SharePoint 2010. Check out &lt;a title="odata on channel9" href="http://channel9.msdn.com/Tags/odata" target="_blank"&gt;Microsoft&amp;#39;s Channel 9 site&lt;/a&gt; in the next week for an example by Hilary Stoupa regarding OData.&lt;/p&gt;</description></item><item><title>How to query for a null value?</title><link>https://www.infopathdev.com:443/forums/thread/68627.aspx</link><pubDate>Thu, 21 Jul 2011 22:01:58 GMT</pubDate><guid isPermaLink="false">033a2e2d-04e2-4a9d-be01-a4634161eefd:68627</guid><dc:creator>mikeyfev1</dc:creator><slash:comments>0</slash:comments><comments>https://www.infopathdev.com:443/forums/thread/68627.aspx</comments><wfw:commentRss>https://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=44&amp;PostID=68627</wfw:commentRss><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I need to query a data connection (Sharepoint list) for all items where a specific column is null.&amp;nbsp; Is there a way to do this with rules?&lt;/p&gt;
&lt;p&gt;If not, how is this done with code-behind?&lt;/p&gt;</description></item></channel></rss>