Tip 21 – How to use the Single() operator – EF 4.0 onlyhttp://blogs.msdn.com/b/alexj/archive/2009/05/21/tip-21-the-single-operator-ef-4-0-only.aspxThis is 21st post in my ongoing series of Entity Framework Tips , and the first that is specific to EF 4.0. Entity Framework 4.0 Beta 1 As you’ve probably heard VS 2010 Beta 1 is now available to subscribers which means some of you can get your handsen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)Tip 25 – How to Get Entities by key the easy wayhttp://blogs.msdn.com/b/alexj/archive/2009/05/21/tip-21-the-single-operator-ef-4-0-only.aspx#9727839Fri, 12 Jun 2009 00:19:26 GMT91d46819-8472-40ad-a661-2c78acb4018c:9727839Meta-Me<p>Sometimes rather than writing this: var customer = ctx.Customers.First(c =&amp;gt; c.ID == 5); You would</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=9727839" width="1" height="1">re: Tip 21 – How to use the Single() operator – EF 4.0 onlyhttp://blogs.msdn.com/b/alexj/archive/2009/05/21/tip-21-the-single-operator-ef-4-0-only.aspx#9646243Thu, 28 May 2009 09:53:04 GMT91d46819-8472-40ad-a661-2c78acb4018c:9646243onemenny<p>i think the terminology is a bit confusing if you compare it to First() or FirstOrDefaul().</p> <p>Fisrt() is same as Single() except the exception type trown while FirstOrDefault() differese from SingleOrDefault() by really creating a default instance.</p> <p>maybe it should be named SelectSingle() and SelectSingleOf() </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9646243" width="1" height="1">Meta-Me : Tip 21 – How to use the Single() operator – EF 4.0 onlyhttp://blogs.msdn.com/b/alexj/archive/2009/05/21/tip-21-the-single-operator-ef-4-0-only.aspx#9634303Thu, 21 May 2009 23:54:49 GMT91d46819-8472-40ad-a661-2c78acb4018c:9634303DotNetShoutout<p>Thank you for submitting this cool story - Trackback from DotNetShoutout</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=9634303" width="1" height="1">