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Migrate a .NET library to .NET Core / .NET Standard 2.0

I have a small spare time project called Sloader and I recently moved the code base to .NET Standard 2.0. This blogpost covers how I moved this library to .NET Standard. Uhmmm… wait… what is .NET Standard? If you have been living under a rock in the past year: .NET Standard is a kind of “contract” that allows the library to run under all .NET implementations like the full .NET Framework ...

31.08.2018 | 57 0 | Code-Inside Blog

4

Improving Code

Improving code TL;DR; Things I learned: long one-liners are hard to read and understand split up your code into small, easy to understand functions less “plumping” (read infrastructure code) is the better get indentation right “Make it correct, make it clear, make it concise, make it fast. In that order.” Wes Dyer Why should I bother? Readable code is: easier to debug fast to fix ...

03.08.2018 | 66 0 | Code-Inside Blog

7

Easy way to copy a SQL database with Microsoft SQL Server Management Studio (SSMS)

How to copy a database on the same SQL server The scenario is pretty simple: We just want a copy of our database, with all the data and the complete scheme and permissions. 1. step: Make a back up of your source database Click on the desired database and choose “Backup” under tasks. 2. step: Use copy only or use a full backup In the dialog you may choose “copy-only” backup. With this option ...

01.08.2018 | 91 1 | Code-Inside Blog

9

DbProviderFactories & ODP.NET: When even Oracle can be tamed

... is needed. Yay! The NuGet package will add some config entries in your web .config or app.config. I will cover this in the section below. 3. Use sane ... username/password@myserver//instancename; DbProviderFactories & ODP.NET As I mentioned earlier after the installation your web or app.config might look different. The most interesting addition is the registration in the ...

01.06.2018 | 377 1 | Code-Inside Blog

9

CultureInfo.GetCultureInfo() vs. new CultureInfo() - what's the difference?

The problem The problem started with a simple code: double.TryParse("1'000", NumberStyles.Any, culture, out _) Be aware that the given culture was “DE-CH” and the Swiss use the ‘ for the separator for numbers. Unfortunately the Swiss authorities have abandoned the ‘ for currencies, but it is widly used in the industrie and such a number should be parsed or displayed. Now ...

29.05.2018 | 463 0 | Code-Inside Blog

6

.editorconfig: Sharing a common coding style in a team

Sharing Coding Styles & Conventions In a team it is really important to set coding conventions and to use a specific coding style, because it helps to maintain the code - a lot. Of course has each developer his own “style”, but some rules should be set, otherwise it will end in a mess. Typical examples for such rules are “Should I use var or not?” or “Are _ still OK for private fields?”. ...

01.05.2018 | 435 0 | Code-Inside Blog

11

Did you know that you can run ASP.NET Core 2 under the full framework?

This post might be obvious for some, but I really struggled a couple of month ago and I’m not sure if a Visual Studio Update fixed the problem for me or if I was just blind… The default way: Running .NET Core AFAIK the framework dropdown in the normal Visual Studio project template selector (the first window) is not important and doesn’t matter anyway for .NET Core related projects. ...

01.04.2018 | 630 0 | Code-Inside Blog

6

Windows Fall Creators Update 1709 and Docker Windows Containers

Who shrunk my Windows Docker image? We started to package our ASP.NET/WCF/Full-.NET Framework based web app into Windows Containers, which we then publish to the Docker Hub. Someday we discovered that one of our new build machines produced Windows Containers only half the size: Instead of a 8GB Docker image we only got a 4GB Docker image. Yeah, right? The problem with Windows ...

28.02.2018 | 137 0 | Code-Inside Blog

7

WCF Global Fault Contracts

If you are still using WCF you might have stumbled upon this problem: WCF allows you to throw certain Faults in your operation, but unfortunatly it is a bit awkward to configure if you want “Global Fault Contracts”. With this solution here it should be pretty easy to get “Global Faults”: Define the Fault on the Server Side: Let’s say we want to throw the following fault in all our ...

01.02.2018 | 161 0 | Code-Inside Blog

8

First steps to enable login with Microsoft or Azure AD account for your application

... less legacy and I wouldn’t use them anymore. Step 2: Choose a platform Now you need to choose your application platform. If you want to enable the sign-in stuff for your web application you need to choose “Web ” and insert the redirect URL. After the sign-in process the token will be send to this URL. Step 3: Choose Microsoft Graph Permissions (Scopes) In the last step you need to select ...

31.12.2017 | 166 0 | Code-Inside Blog

8

Signing with SignTool.exe - don't forget the timestamp!

If you currently not touching signtool.exe at all or have nothing to do with “signing” you can just pass this blogpost, because this is more or less a stupid “Today I learned I did a mistake”-blogpost. Signing? We use authenticode code signing for our software just to prove that the installer is from us and “safe to use”, otherwise you might see a big warning from Windows that the ...

02.12.2017 | 709 0 | Code-Inside Blog

10

Signing with SignTool.exe - don't forget the timestamp!

If you currently not touching signtool.exe at all or have nothing to do with “signing” you can just pass this blogpost, because this is more or less a stupid “Today I learned I did a mistake”-blogpost. Signing? We use authenticode code signing for our software just to prove that the installer is from us and “safe to use”, otherwise you might see a big warning from Windows that the ...

01.12.2017 | 151 0 | Code-Inside Blog

8

Introducing Electron.NET - building Electron Desktop Apps with ASP.NET Core

... Perf will suck: Well… to be honest - the current startup time does really suck, because we not only launch the Electron stuff, but we also need to start the .NET Core based Web Host - maybe we will find a solution Starting a web server inside the app is bad on multiple levels because of security and perf: I agree, there are some ideas how to fix it, but this might take some time. There are lots ...

01.11.2017 | 887 0 | Code-Inside Blog

10

dnSpy - a OSS IL decompiler and debugger

My colleague was fighting against a nasty bug, that only occures on one machine. Unfortunatly this machine was not a development machine (no VS installed) and we didn’t want to mess with VS remote debugging, because (AFAIK) his would need some additional setup but we were not allowed to install anything. Soooo… he searched around and found this: dnSpy - a .NET assembly editor, ...

01.10.2017 | 483 2 | Code-Inside Blog

4

IdentityServer3 with WindowsAuthentication with ASP.NET WebApi & ASP.NET & WPF App

... IdentityTest.WebApp: The Web App itself can ... hosts a Web Api. The Web Api is secured ... a Web Browser-Control from the ... Web Api that is ... ‘Web App’ Project This ... Web Api 2 included. ... Web Api Browser Auth ... Web Api Auth: To ... Web Api with any ... "web app", RedirectUri ConfigurationManager.AppSettings["Security.RedirectUri"], ... Web signin. This scenario ... Web Api and write ... Web Apis and Web Pages via a ...

31.08.2017 | 440 0 | Code-Inside Blog

6

How to convert .crt & .key files to a .pfx

The requirements are simple: You will need the .cer with the corresponding .key file and need to download OpenSSL. If you are using Windows without the awesome Linux Subsystem, take the latest pre-compiled version for Windows from this or this site. Otherwise with Bash on Windows you can just use OpenSSL via its “native” environment. Thanks for the hint @kapsiR After the download ...

01.08.2017 | 877 2 | Code-Inside Blog

12

Non-cryptographic hash functions for .NET

Creating hashs is quite common to check if content X has changed without looking at the whole content of X. Git for example uses SHA1-hashs for each commit. SHA1 itself is a pretty old cryptographic hash function, but in the case of Git there might have been better alternatives available, because the “to-be-hashed” content is not crypto relevant - it’s just content marker. Well… in ...

30.06.2017 | 241 0 | Code-Inside Blog

8

Using Visual Studio Code & Team Foundation Version Control (TFVC)

Recently we start working on a Angular 4 app but all other parts of the application (e.g. the backend stuff) were stored in a good old TFVC based repository (inside a Team Foundation Server 2015) . Unfortunately building an Angular app with the full blown Visual Studio with the “default” Team Explorer workflow is not really practical. Another point for using Visual Studio Code was ...

30.05.2017 | 384 0 | Code-Inside Blog

4

.NET CultureInfo in Windows 10

Did you know that the CultureInfo behavior with “unkown” cultures has changed with Windows 10? I stumbled two times about this “problem” - so this is enough to write a short blogpost about it. Demo Code Lets use this democode: try { // ok on Win10, but not on pre Win10 if culture is not registred CultureInfo culture1 new CultureInfo("foo"); CultureInfo culture2 new ...

24.04.2017 | 638 0 | Code-Inside Blog

7

How we moved to Visual Studio 2017

Visual Studio 2017 has arrived and because of .NET Core and other goodies we wanted to switch fast to the newest release with our product OneOffixx. Company & Product Environment In our solution we use some VC projects (just for Office Development & building a .NET shim), Windows Installer XML & many C# projects for desktop or ASP.NET stuff. Our builds are scripted with CAKE (see ...

28.03.2017 | 366 0 | Code-Inside Blog

4

HowTo: Get User Information & Group Memberships from Active Directory via C#

I had to find a way to access all group memberships from a given Active Directory user. The problem here is, that groups may contain other groups and I needed a list of “all” applied group memberships - directly or indirectly. The “fastest” solution (without querying each group) is to use the Token-Groups attribute, which already does this magic for us. This list should contain all ...

03.03.2017 | 362 0 | Code-Inside Blog

7

HowTo: Get User Information & Group Memberships from Active Directory via C#

I had to find a way to access all group memberships from a given Active Directory user. The problem here is, that groups may contain other groups and I needed a list of “all” applied group memberships - directly or indirectly. The “fastest” solution (without querying each group) is to use the Token-Groups attribute, which already does this magic for us. This list should contain all ...

03.03.2017 | 315 0 | Code-Inside Blog

13

Create NuGet packages with Cake

... NuGetPack("./src/Sloader.Engine/Sloader.Engine.csproj", nuGetPackSettings); }); Easy, right? The most interesting part here is the NuGetPack command. Before we invoke this command we need to make sure that we b uild the last recent version - to enforce that we just rebuild each project in release mode. Result The console output should make the flow pretty clear: PS ...

14.02.2017 | 809 0 | Code-Inside Blog

9

Build & run xUnit tests with Cake

Last year I already covered the basic usage of Cake, which stands for “C# Make”. This time we want to build and run xUnit tests with Cake. Scenario Let’s say we have this project structure. Be aware that all our tests have the suffix “Tests” in the project name. The files are organized like this, so we have all “Tests” in a “tests” folder and the actual code under “src”: ...

08.02.2017 | 580 0 | Code-Inside Blog

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GitHub API: Create or update files

This blogpost covers a pretty basic GitHub topic: Creating and updating content on GitHub. Of course, there are many ways to do it - e.g. you could do the full Git-ceremony and it would work with all Git hosts, but in my case I just wanted to target the offical GitHub API. Prerequisite: A GitHub User, Repo and Token To use this code you will need write access to a GitHub repository and you ...

03.01.2017 | 514 0 | Code-Inside Blog

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