Categorie: Visual Studio / C#
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SQL project flag Invalid objects when run from Azure Pipelines
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For most of my .Net solutions, I define the database in a database project (SQL Server Data Tools or SSDT) in the solution and use that to deploy to database server(s). For additional QA, using Azure Pipelines, I often spin up a localdb instance and deploy the database to it, after which I can run…
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If you publish a WCF service using EF to IIS, do not forget to distribute sqlserver.dll manually
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I’ve spent several hours this week debugging a WCF application using Entity Framework, that was published to an IIS server, only to have every call to the service fill with the error message “The type initializer for [My]DbContext has caused an exception”. Of course, on the dev machine everything was working fine. Short answer: as…
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You cannot use a null propagating operator in an expression tree lambda
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One of the features I like about the new C# 6.0 is the null conditional operator, and I tend to use it everywhere I can (and should). Until yesterday, when at a statement I wasn’t expecting it, the compiler bit me with error CS8072, An expression tree lambda may not contain a null propagating operator.…
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ReSharper Postfix Templates plugin
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Developers: ever notice how you often, when typing some piece of code, most often a variable or other class reference, have to track back your keystrokes to surround it or prefix it with something else? The Postfix Templates extension for ReSharper by Alexander Shvedov (@ControlFlow) minimizes the times you have to backtrack what you typed,…
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Update to SQL server tooling for Visual Studio
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MS recently released the “March 2014” update to the SQL Server tooling for Visual Studio 2013, which was named SQL Server Data Tools for previous Visual Studio versions. Among the most notable new features are support for SQL Server 2014 and several productivity updates that simplify development and testing, also on SQL Azure. Read more…
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Downloading UTF-8 filenames from an FTP-server that does not support them, with System.Net.FtpWebRequest
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I have written a windows service in .Net that monitors an FTP location for new files, which it then downloads to a local folder for processing. To be precise, the tool first renames the file before downloading it. It uses the .Net standard FtpWebRequest class from System.Net. Every once in a while, a file could…
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Implementing IEquatable is not enough to use a class as a Dictionary key
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Note to future self: it is not enough to implement IEquatable<T> to use a class as a Dictionary key. Today I needed a Dictionary with a composite key, a combination of several values. So I quickly cooked up a class with public properties to cover the values and for ease of use, a constructor to…
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.Net Compact Framework project takes very long to build, appears to freeze
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On Compact Framework project I was working on from Visual Studio 2008, targeting a Windows Mobile 6 device, I noticed that doing a build was getting slower and slower. Watching the output window, the build process would start off really quick and then seem to hang around for several minutes, sometimes making Visual Studio appear…
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The case of the blank Visual Studio properties window — part 2
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Earlier this year I suffered from a case of a Visual Studio properties window that appeared to get “stuck” in the middle of developing an application. It would show up blank and the only way to get it to work was to fix the project and restart Visual Studio (not just close and reopen the…
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Error when compiling .resx file – Attempt to load a program with an invalid structure
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I have seen this before and fixed it, but ran into it again today and could not remember what is was. When compiling a WinForms application in Visual Studio 2010, I got an error message stating “Kan bestand of assembly (…) of een van de afhankelijkheden hiervan niet laden. Poging om een programma te laden…