A Programmer with Microsoft tools

Category: .NET

  • Validation in .NET

    For validating a simple class,you can add [Required] ( see https://msdn.microsoft.com/en-us/library/ee256141(v=vs.100).aspx But how to validate same object depending on his state? For example,when it is new,the email is required. But after saving,the user mus also add FirstName( also think about workflows) There is a simple solution in .NET : IValidatableObject In this example,I validate differently…

  • IEnumerable

      Please read the code and answer question below: How many times the breakpoint at will be hit ? Why? And if your answer is not 3,please look at https://youtu.be/1fy_T9TCPpc

  • Asynchronous code and exceptions

    There are 2 kinds of coding when handling asynchronous code. The first one is  calling Result: < [code lang="csharp"] t.TwoTask().Result [/code] The second is async /await As such,we will have 2 intercepting code. For the first one we will catch AggregateException For the second one we will catch the FIRST task  exception  ( or,more generic,Exception…

  • Async / await transformation and pitfalls

    /// &lt;summary&gt; /// please read first http://blog.stephencleary.com/2012/02/async-and-await.html /// &lt;/summary&gt; Let’s say you want to transform this code to async / await public bool TwoTask() { var file= WriteToFile(); var console= ReadConsole(); return file &amp; console; } The first version is public async Task&lt;bool&gt; TwoTask() { var file=await WriteToFile(); var console = await ReadConsole(); return file…

  • Video Tutorials 5 minutes

    Videos: 5Min Logging 5min Send emails and SMTP4Dev 5Min Memory Profiler ( User Object and/or memory leaks) 5min SFHB 5min – .TT files in Visual Studio Playlist 5 Minutes .NET

  • MVC planning poker–part 7

    The latest 2 cases are Use Case 5: Round reset Moderator enters a round name (?) . Participants choose a value. Host press "reset round " and a fresh new round is created The old one is not saved Use Case 6: Round save After a round is saved,the users can see the history round…

  • 2015 – Todo

    Learn vNext Make a tutorial in EN + RO about vNext That will be all 😉

  • Entity Framework 6 Record and play use : Unit Testing ( part 2 of 5)

      Part 1 : What is EF record and play : http://msprogrammer.serviciipeweb.ro/2014/11/29/entity-framework-6-record-and-play-1-of-5/  Part 2: EF Record and play use: Testing : http://msprogrammer.serviciipeweb.ro/2014/12/08/entity-framework-6-record-and-play-use-unit-testing-part-2-of-5/ Part 3: EF Record and play use: Make demo: http://msprogrammer.serviciipeweb.ro/2014/12/14/entity-framework-6-record-and-play-use-making-demos-part-3-of-5/  Part 4: EF Record and play use: Record user Sql when a bug occurs: http://msprogrammer.serviciipeweb.ro/2014/12/26/ef-record-and-play-use-recording-user-sql-when-a-bug-occurred-part-4-of-5/ Part 5: EF record and play: conclusions: http://msprogrammer.serviciipeweb.ro/2015/01/05/ef-record-and-play-conclusions/…

  • Entity Framework 6 Record and play – 1 of 5

      Part 1 : What is EF record and play : http://msprogrammer.serviciipeweb.ro/2014/11/29/entity-framework-6-record-and-play-1-of-5/  Part 2: EF Record and play use: Testing : http://msprogrammer.serviciipeweb.ro/2014/12/08/entity-framework-6-record-and-play-use-unit-testing-part-2-of-5/ Part 3: EF Record and play use: Make demo: http://msprogrammer.serviciipeweb.ro/2014/12/14/entity-framework-6-record-and-play-use-making-demos-part-3-of-5/  Part 4: EF Record and play use: Record user Sql when a bug occurs: http://msprogrammer.serviciipeweb.ro/2014/12/26/ef-record-and-play-use-recording-user-sql-when-a-bug-occurred-part-4-of-5/ Part 5: EF record and play: conclusions: http://msprogrammer.serviciipeweb.ro/2015/01/05/ef-record-and-play-conclusions/…

  • Traceability – conclusion – part 7 of 7

    Those were previous posts: Traceability in .NET – 1 of 7 Traceability in .NET–1.0.*–part 2 of 7 Tracebility in .NET -source control – part 3 of 7 Traceability in .NET–.tt files–add build date– part 4 of 7 Traceability in .NET–.tt files–add changeset – part 5 of 7 .TT – add more informations(.NET version,build ) –…