<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" media="screen" href="/App_Themes/default/rss.xslt"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:media="http://search.yahoo.com/mrss/" xmlns:evnet="http://www.mscommunities.com/rssmodule/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"><channel><title>Entries tagged with code contracts - Channel 9</title><atom:link rel="self" type="application/rss+xml" href="http://channel9.msdn.com/tags/code+contracts/feed/ipod/default.aspx" /><itunes:summary>code contracts</itunes:summary><itunes:author>Erik Porter, Charles, Mike Sampson, Grace Francisco, Brian Keller, Nathan Heskew, dshadle, Dan Fernandez, Duncan Mackenzie, Jeff Sandquist</itunes:author><itunes:subtitle></itunes:subtitle><image><url>http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png</url><title>Entries tagged with code contracts - Channel 9</title><link>http://channel9.msdn.com/tags/code+contracts/</link></image><itunes:image href="http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png" /><itunes:category text="Technology" /><description>code contracts</description><link>http://channel9.msdn.com/tags/code+contracts/</link><language>en-us</language><pubDate>Fri, 18 Sep 2009 23:34:57 GMT</pubDate><lastBuildDate>Fri, 18 Sep 2009 23:34:57 GMT</lastBuildDate><generator>EvNet (EvNet, Version=1.0.3608.3122, Culture=neutral, PublicKeyToken=null)</generator><item><title>Daryl Zuniga - Viewing Code Contracts.NET in Visual Studio</title><description>&lt;img src="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_85_ch9.png" border="0" /&gt;&lt;a href="http://darylzuniga.wordpress.com/"&gt;Daryl Zuniga&lt;/a&gt; gives a fast and furious demo of the new editor extensions for &lt;a href="http://research.microsoft.com/contracts"&gt;Code Contracts.NET&lt;/a&gt;. When a developer overrides a method with Contracts, the rewritter would automatically insert the pre-conditions and post-conditions in the method body. Unfortunately, the editor is not aware of that - leaving the developer confused... Not anymore, Daryl's extension mines the Contracts on the fly and hosts them in the shiny new WPF editor of Visual Studio 2010. &lt;br /&gt;
&lt;br /&gt;
&lt;i&gt;The &lt;/i&gt;&lt;a href="http://research.microsoft.com/rise"&gt;&lt;i&gt;Research in Software Engineering team&lt;/i&gt;&lt;/a&gt;&lt;i&gt; (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.&lt;/i&gt;&lt;img src="http://channel9.msdn.com/492867/WebViewBug.aspx?EVT=0" height="1" width="1" alt="" /&gt;</description><comments>http://channel9.msdn.com/posts/Peli/Code-Contracts-in-the-IDE/</comments><itunes:summary>Daryl Zuniga gives a fast and furious demo of the new editor extensions for Code Contracts.NET. When a developer overrides a method with Contracts, the rewritter would automatically insert the pre-conditions and post-conditions in the method body. Unfortunately, the editor is not aware of that - leaving the developer confused... Not anymore, Daryl's extension mines the Contracts on the fly and hosts them in the shiny new WPF editor of Visual Studio 2010. 

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.</itunes:summary><link>http://channel9.msdn.com/posts/Peli/Code-Contracts-in-the-IDE/</link><pubDate>Mon, 21 Sep 2009 22:59:00 GMT</pubDate><guid isPermaLink="false">http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.mp4</guid><evnet:views>24736</evnet:views><evnet:viewtrackingurl>http://channel9.msdn.com/492867/WebViewBug.aspx?EVT=0</evnet:viewtrackingurl><evnet:previewtext>&lt;a href="http://darylzuniga.wordpress.com/"&gt;Daryl Zuniga&lt;/a&gt; gives a fast and furious demo of the new editor extensions for &lt;a href="http://research.microsoft.com/contracts"&gt;Code Contracts.NET&lt;/a&gt;...</evnet:previewtext><media:thumbnail url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_320_ch9.png" height="240" width="320" /><media:thumbnail url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_85_ch9.png" height="64" width="85" /><media:group><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.mp4" expression="full" duration="83" fileSize="2788647" type="video/mp4" medium="video" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.mp3" expression="full" duration="83" fileSize="667203" type="audio/mp3" medium="audio" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.mp4" expression="full" duration="83" fileSize="2788647" type="video/mp4" medium="video" /><media:content isDefault="true" url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.wma" expression="full" duration="83" fileSize="686885" type="audio/x-ms-wma" medium="audio" /><media:content isDefault="true" url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.wmv" expression="full" duration="83" fileSize="4326747" type="video/x-ms-wmv" medium="video" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_2MB_ch9.wmv" expression="full" duration="83" fileSize="2047831" type="video/x-ms-wmv" medium="video" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_Zune_ch9.wmv" expression="full" duration="83" fileSize="2790675" type="video/x-ms-wmv" medium="video" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_512_ch9.png" expression="full" duration="83" type="image/jpeg" medium="image" /><media:content url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_2MB_ch9.wmv" expression="full" duration="83" fileSize="2047831" type="video/x-ms-asf" medium="video" /></media:group><enclosure url="http://ecn.channel9.msdn.com/o9/ch9/7/6/8/2/9/4/contractseditorextensions_ch9.mp4" length="2788647" type="video/mp4" /><dc:creator>Peli de Halleux</dc:creator><itunes:author>Peli de Halleux</itunes:author><slash:comments>8</slash:comments><wfw:commentRss>http://channel9.msdn.com/posts/Peli/Code-Contracts-in-the-IDE/RSS/</wfw:commentRss><trackback:ping>http://channel9.msdn.com/492867/Trackback.aspx</trackback:ping><category>.net 4.0</category><category>.NET Framework 4.0</category><category>code contracts</category><category>editor</category><category>rise</category><category>Visual Studio 2010</category></item><item><title>Daryl Zuniga and Mike Barnett - Xml Documentation from Code Contracts for .Net</title><description>&lt;img src="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_small_ch9.png" border="0" /&gt;&lt;a href="http://research.microsoft.com/en-us/people/mbarnett/"&gt;Mike Barnett&lt;/a&gt; and &lt;a href="http://darylzuniga.wordpress.com/"&gt;Daryl Zuniga&lt;/a&gt;, a high school intern at RiSE, sit down to talk about &lt;a href="http://research.microsoft.com/en-us/projects/contracts/default.aspx"&gt;Code Contracts for .NET&lt;/a&gt; and documentation. Daryl has been working this summer on a tool that inserts contracts elements into the Xml Documentation files generated by the C#/VB compiler. Daryl also updated the &lt;a href="http://www.codeplex.com/Sandcastle"&gt;Sandcastle&lt;/a&gt; stylesheets so that the contracts appear in the documentation pages.&lt;br /&gt;
&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Code Contracts for .NET &lt;a href="http://research.microsoft.com/en-us/projects/contracts/default.aspx"&gt;home page&lt;/a&gt; - &lt;a href="http://social.msdn.microsoft.com/Forums/en/codecontracts/threads"&gt;forums&lt;/a&gt; &lt;/li&gt;
    &lt;li&gt;&lt;a href="http://channel9.msdn.com/tags/code+contracts/"&gt;See more&lt;/a&gt; Channel 9 videos on Code Contracts &lt;/li&gt;
&lt;/ul&gt;
&lt;em&gt;&lt;strong&gt; Update: &lt;/strong&gt;the xml comment generation is now available for download!&lt;br /&gt;
&lt;/em&gt;&lt;br /&gt;
&lt;i&gt;The &lt;/i&gt;&lt;a href="http://research.microsoft.com/rise"&gt;&lt;i&gt;Research in Software Engineering team&lt;/i&gt;&lt;/a&gt;&lt;i&gt; (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.&lt;/i&gt;&lt;img src="http://channel9.msdn.com/483704/WebViewBug.aspx?EVT=0" height="1" width="1" alt="" /&gt;</description><comments>http://channel9.msdn.com/posts/Peli/Xml-Documentation-from-Code-Contracts-for-Net/</comments><itunes:summary>Mike Barnett and Daryl Zuniga, a high school intern at RiSE, sit down to talk about Code Contracts for .NET and documentation. Daryl has been working this summer on a tool that inserts contracts elements into the Xml Documentation files generated by the C#/VB compiler. Daryl also updated the Sandcastle stylesheets so that the contracts appear in the documentation pages.


    Code Contracts for .NET home page - forums 
    See more Channel 9 videos on Code Contracts 

 Update: the xml comment generation is now available for download!

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.</itunes:summary><link>http://channel9.msdn.com/posts/Peli/Xml-Documentation-from-Code-Contracts-for-Net/</link><pubDate>Mon, 10 Aug 2009 22:55:00 GMT</pubDate><guid isPermaLink="false">http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.mp4</guid><evnet:views>58712</evnet:views><evnet:viewtrackingurl>http://channel9.msdn.com/483704/WebViewBug.aspx?EVT=0</evnet:viewtrackingurl><evnet:previewtext>Mike Barnett and Daryl Zuniga, a high school intern at RiSE, sit down to talk about Code Contracts for .NET and documentation. Daryl has been working on a tool that inserts contracts elements into the Xml Documentation files generated by the C#/VB compiler...</evnet:previewtext><media:thumbnail url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_large_ch9.png" height="240" width="320" /><media:thumbnail url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_small_ch9.png" height="64" width="85" /><media:group><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.mp4" expression="full" duration="510" fileSize="27855774" type="video/mp4" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.mp3" expression="full" duration="510" fileSize="4088265" type="audio/mp3" medium="audio" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.mp4" expression="full" duration="510" fileSize="27855774" type="video/mp4" medium="video" /><media:content isDefault="true" url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.wma" expression="full" duration="510" fileSize="4147493" type="audio/x-ms-wma" medium="audio" /><media:content isDefault="true" url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.wmv" expression="full" duration="510" fileSize="60844725" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_2MB_ch9.wmv" expression="full" duration="510" fileSize="60299889" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_Zune_ch9.wmv" expression="full" duration="510" fileSize="30252653" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_2MB_ch9.wmv" expression="full" duration="510" fileSize="60299889" type="video/x-ms-asf" medium="video" /></media:group><enclosure url="http://mschnlnine.vo.llnwd.net/d1/ch9/4/0/7/3/8/4/ccdoc_ch9.mp4" length="27855774" type="video/mp4" /><dc:creator>Peli de Halleux</dc:creator><itunes:author>Peli de Halleux</itunes:author><slash:comments>12</slash:comments><wfw:commentRss>http://channel9.msdn.com/posts/Peli/Xml-Documentation-from-Code-Contracts-for-Net/RSS/</wfw:commentRss><trackback:ping>http://channel9.msdn.com/483704/Trackback.aspx</trackback:ping><category>.net 4.0</category><category>.NET Framework 4.0</category><category>code contracts</category><category>rise</category><category>Software Engineering Research</category></item><item><title>Manuel Fahndrich and Peli de Halleux - The Synergy of Code Contracts and Pex</title><description>&lt;img src="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_small_ch9.png" border="0" /&gt;&lt;a href="http://research.microsoft.com/~maf"&gt;Manuel Fähndrich&lt;/a&gt; and &lt;a href="http://blog.dotnetwiki.org/"&gt;Peli de Halleux&lt;/a&gt; sit down for a quick coding session that shows how to use &lt;a href="http://research.microsoft.com/contracts"&gt;Code Contracts&lt;/a&gt; and &lt;a href="http://research.microsoft.com/pex"&gt;Pex&lt;/a&gt; together. Code Contracts can be used to specify what your code should do, they get turned into runtime checks which Pex can analyse and try to find counter-examples for. This was a fun session with Manuel and really shows the synergy of the two tools/approaches.&lt;br /&gt;
&lt;br /&gt;
Both tools can be downloaded from Devlabs or our academic project pages.&lt;br /&gt;
&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Code Contracts: &lt;a href="http://research.microsoft.com/contracts"&gt;http://research.microsoft.com/contracts&lt;/a&gt; &lt;/li&gt;
    &lt;li&gt;Pex: &lt;a href="http://research.microsoft.com/pex"&gt;http://research.microsoft.com/pex&lt;/a&gt; &lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;The &lt;/em&gt;&lt;a href="http://research.microsoft.com/rise"&gt;&lt;em&gt;Research in Software Engineering team&lt;/em&gt;&lt;/a&gt;&lt;em&gt; (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.&lt;/em&gt;&lt;/p&gt;&lt;img src="http://channel9.msdn.com/466345/WebViewBug.aspx?EVT=0" height="1" width="1" alt="" /&gt;</description><comments>http://channel9.msdn.com/posts/Peli/The-Synergy-of-Code-Contracts-and-Pex/</comments><itunes:summary>Manuel Fähndrich and Peli de Halleux sit down for a quick coding session that shows how to use Code Contracts and Pex together. Code Contracts can be used to specify what your code should do, they get turned into runtime checks which Pex can analyse and try to find counter-examples for. This was a fun session with Manuel and really shows the synergy of the two tools/approaches.

Both tools can be downloaded from Devlabs or our academic project pages.


    Code Contracts: http://research.microsoft.com/contracts 
    Pex: http://research.microsoft.com/pex 

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.</itunes:summary><link>http://channel9.msdn.com/posts/Peli/The-Synergy-of-Code-Contracts-and-Pex/</link><pubDate>Thu, 23 Apr 2009 18:59:00 GMT</pubDate><guid isPermaLink="false">http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.mp4</guid><evnet:views>33307</evnet:views><evnet:viewtrackingurl>http://channel9.msdn.com/466345/WebViewBug.aspx?EVT=0</evnet:viewtrackingurl><evnet:previewtext>Manuel Fähndrich and Peli de Halleux (me) sit down for a quick coding session that shows how to use Code Contracts and Pex together. Code Contracts can be used to specify what your code should do, they get turned into runtime checks, Pex analyses those checks and tries to find counter-examples. This was a fun session with Manuel and really shows the synergy of the two tools/approaches.</evnet:previewtext><media:thumbnail url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_large_ch9.png" height="240" width="320" /><media:thumbnail url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_small_ch9.png" height="64" width="85" /><media:group><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.mp4" expression="full" duration="690" fileSize="31519981" type="video/mp4" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.mp3" expression="full" duration="690" fileSize="5524609" type="audio/mp3" medium="audio" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.mp4" expression="full" duration="690" fileSize="31519981" type="video/mp4" medium="video" /><media:content isDefault="true" url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.wma" expression="full" duration="690" fileSize="11188881" type="audio/x-ms-wma" medium="audio" /><media:content isDefault="true" url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.wmv" expression="full" duration="690" fileSize="32889583" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_2MB_ch9.wmv" expression="full" duration="690" fileSize="48104965" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_Zune_ch9.wmv" expression="full" duration="690" fileSize="32729563" type="video/x-ms-wmv" medium="video" /><media:content url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_2MB_ch9.wmv" expression="full" duration="690" fileSize="48104965" type="video/x-ms-asf" medium="video" /></media:group><enclosure url="http://mschnlnine.vo.llnwd.net/d1/ch9/5/4/3/6/6/4/contractsandpex_ch9.mp4" length="31519981" type="video/mp4" /><dc:creator>Peli de Halleux</dc:creator><itunes:author>Peli de Halleux</itunes:author><slash:comments>9</slash:comments><wfw:commentRss>http://channel9.msdn.com/posts/Peli/The-Synergy-of-Code-Contracts-and-Pex/RSS/</wfw:commentRss><trackback:ping>http://channel9.msdn.com/466345/Trackback.aspx</trackback:ping><category>code contracts</category><category>Microsoft Research</category><category>PEX</category><category>research</category><category>rise</category><category>Test Driven Development</category></item><item><title>Mike Barnett - Getting started with Code Contracts in Visual Studio 2008</title><description>&lt;img src="http://mschnlnine.vo.llnwd.net/d1/ch9/2/9/4/7/5/4/mikescontractstutorial_small_ch9.png" border="0" /&gt;&lt;a href="http://research.microsoft.com/en-us/people/mbarnett/"&gt;Mike Barnett&lt;/a&gt; gives a step-by-step tutorial on &lt;a href="http://research.microsoft.com/contracts"&gt;Code Contracts&lt;/a&gt;, a new way to express preconditions, postconditions and invariants in any .NET language. The contracts team have built a runtime instrumentation tool and also advanced static checkers that can understand and reason about contracts.&lt;br /&gt;
&lt;br /&gt;
The Code Contracts library can be downloaded for Visual Studio 2008 from the DevLabs web site. They will be part of the .Net framework 4.0!!!&lt;br /&gt;
&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Contracts @ DevLabs: &lt;a href="http://msdn.microsoft.com/en-us/devlabs/dd491992.aspx"&gt;http://msdn.microsoft.com/en-us/devlabs/dd491992.aspx&lt;/a&gt; &lt;/li&gt;
    &lt;li&gt;Contracts @ Microsoft Research: &lt;a href="http://research.microsoft.com/contracts"&gt;http://research.microsoft.com/contracts&lt;/a&gt; &lt;/li&gt;
    &lt;li&gt;Contracts forums: &lt;a href="http://social.msdn.microsoft.com/Forums/en-US/codecontracts/threads/"&gt;http://social.msdn.microsoft.com/Forums/en-US/codecontracts/threads/&lt;/a&gt;  &lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;i&gt;The &lt;/i&gt;&lt;a href="http://research.microsoft.com/rise"&gt;&lt;i&gt;Research in Software Engineering team&lt;/i&gt;&lt;/a&gt;&lt;i&gt; (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.&lt;/i&gt;&lt;/p&gt;&lt;img src="http://channel9.msdn.com/457492/WebViewBug.aspx?EVT=0" height="1" width="1" alt="" /&gt;</description><comments>http://channel9.msdn.com/posts/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008/</comments><itunes:summary>Mike Barnett gives a step-by-step tutorial on Code Contracts, a new way to express preconditions, postconditions and invariants in any .NET language. The contracts team have built a runtime instrumentation tool and also advanced static checkers that can understand and reason about contracts.

The Code Contracts library can be downloaded for Visual Studio 2008 from the DevLabs web site. They will be part of the .Net framework 4.0!!!


    Contracts @ DevLabs: http://msdn.microsoft.com/en-us/devlabs/dd491992.aspx 
    Contracts @ Microsoft Research: http://research.microsoft.com/contracts 
    Contracts forums: http://social.msdn.microsoft.com/Forums/en-US/codecontracts/threads/  

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.</itunes:summary><link>http://channel9.msdn.com/posts/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008/</link><pubDate>Mon, 23 Feb 2009 22:40:00 GMT</pubDate><guid isPermaLink="false">http://mschnlnine.vo.llnwd.net/d1/ch9/2/9/4/7/5/4/mikescontractstutorial_ch9.mp4</guid><evnet:views>40292</evnet:views><evnet:viewtrackingurl>http://channel9.msdn.com/457492/WebViewBug.aspx?EVT=0</evnet:viewtrackingurl><evnet:previewtext>&lt;a href="http://research.microsoft.com/en-us/people/mbarnett/"&gt;Mike Barnett&lt;/a&gt; gives a step-by-step tutorial on &lt;a href="http://research.microsoft.com/contracts"&gt;Code Contracts&lt;/a&gt;, a new way to express preconditions, postconditions and invariants in any .NET language. The Code Contracts library can be downloaded for Visual Studio 2008 from the DevLabs web site and will be part of the .Net framework 4.0!!!&lt;br /&gt;
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