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9

Microsoft Graph: Read user profile and group memberships

In our application we have a background service, that “syncs” user data and group membership information to our database from the Microsoft Graph. The permission model: Programming against the Microsoft Graph is quite easy. There are many SDKS available, but understanding the permission model is hard. ‘Directory.Read.All’ and ‘User.Read.All’: Initially we only synced the ...

01.02.2021 | 205 0 | Code-Inside Blog

5

How to get all distribution lists of a user with a single LDAP query

In 2007 I wrote a blogpost how easy it is to get all “groups” of a given user via the tokenGroup attribute. Last month I had the task to check why “distribution list memberships” are not part of the result. The reason is simple: A pure distribution list (not security enabled) is not a security group and only security groups are part of the “tokenGroup” attribute. After some thoughts and ...

31.12.2020 | 366 5 | Code-Inside Blog

9

Update AzureDevOps Server 2019 to AzureDevOps Server 2019 Update 1

We did this update in May 2020, but I forgot to publish the blogpost… so here we are Last year we updated to Azure DevOps Server 2019 and it went more or less smooth. In May we decided to update to the “newest” release at that time: Azure DevOps Server 2019 Update 1.1 Setup Our AzureDevOps Server was running on a “new” Windows Server 2019 and everything was still kind of newish - so we just ...

30.11.2020 | 432 4 | Code-Inside Blog

6

DllRegisterServer 0x80020009 Error

Last week I had a very strange issue and the solution was really “easy”, but took me a while. Scenario For our products we b uild Office COM Addins with a C based “Shim” that boots up our .NET code (e.g. something like this. As the nature of COM: It requires some pretty dumb registry entries to work and in theory our toolchain should “build” and automatically “register” the output. ...

01.11.2020 | 334 3 | Code-Inside Blog

7

How to share an Azure subscription in a team

We at Sevitec are moving more and more workloads for us or our customers to Azure. So the basic question needs an answer: How can a team share an Azure subscription? Be aware: This approach works for us. There might be better options. If we do something stupid, just tell me in the comments or via email - help is appreciated. Step 1: Create a directory We have a “company directory” with a ...

30.09.2020 | 371 2 | Code-Inside Blog

7

How to run a legacy WCF .svc Service on Azure AppService

... WCF module was not mapped to the .svc extension. To “re-map” the .svc extension to the correct handler I needed to add this to the web .config : ... system.webServer ... handlers remove name "svc-integrated" / add name "svc-integrated" path "*.svc" verb "*" type "System.ServiceModel.Activation.HttpHandler" resourceType "File" preCondition "integratedMode" / /handlers ...

01.09.2020 | 509 1 | Code-Inside Blog

8

EWS, Exchange Online and OAuth with a Service Account

... here is the full story: Our goal We wanted to access contact information via a web service from the organization, just like the traditional “Global Address List” in Exchange/Outlook. We knew that EWS was ... to work as we would like. So… what now? EWS is… old. Why? The Exchange Web Services are old, but still quite powerful and still supported for Exchange Online and OnPrem Exchanges. On ...

01.08.2020 | 392 2 | Code-Inside Blog

10

Can a .NET Core 3.0 compiled app run with a .NET Core 3.1 runtime?

Within our product we move more and more stuff in the .NET Core land. Last week we had a disussion around needed software requirements and in the .NET Framework land this question was always easy to answer: .NET Framework 4.5 or higher. With .NET Core the answer is sligthly different: In theory major versions are compatible, e.g. if you compiled your app with .NET Core 3.0 and a .NET ...

01.07.2020 | 637 4 | Code-Inside Blog

11

SqlBulkCopy for fast bulk inserts

Within our product OneOffixx we can create a “full export” from the product database. Because of limitations with normal MS SQL backups (e.g. compatibility with older SQL databases etc.), we created our own export mechanic. An export can be up to 1GB and more. This is nothing to serious and far from “big data”, but still not easy to handle and we had some issues to import larger ...

01.06.2020 | 480 1 | Code-Inside Blog

6

Blazor for Office Add-ins: First look

... (within the “new” web based Addin model) with Blazor. Side ... is just a web application with a ... from the real web . What (might) ... What won’t work: Web Assembly (if I ... - what about Web Assembly? Well… Blazor Web Assembly is still ... long time: Blazor Web Assembly seems not ... The default Blazor Web Assembly installs a ... Office Add-in Edge Web View. My experience ... early for Blazor Web Assembly, so… time ...

30.04.2020 | 625 2 | Code-Inside Blog

7

Escape enviroment variables in MSIEXEC parameters

Problem Customers can install our product on Windows with a standard MSI package. To automate the installation administrators can use MSIEXEC and MSI parameters to configure our client. A simple installation can look like this: msiexec /qb /i "OneOffixx.msi" ... CACHEFOLDER "D:/OneOffixx/" The “CACHEFOLDER” parameter will be written in the .exe.config file and our program ...

28.03.2020 | 482 1 | Code-Inside Blog

5

TLS/SSL probelems: 'Could not create SSLTLS secure channel'

Problem Last week I had some fun debugging a weird bug. Within our application one module makes HTTP requests to a 3rd party service and depending on the running Windows version this call worked or failed with: 'Could not create SSLTLS secure channel' I knew that older TLS/SSL versions are deprecated and that many services refuse those protocols, but we still didn’t finally ...

01.03.2020 | 635 5 | Code-Inside Blog

9

Accessibility Insights: Spot accessibilities issues easily for Web Apps and Windows Apps

... general this might be handy: MDN Web Docs: What is accessibility? Tooling support In my day ... accessibility issues in our Windows and Web App. I knew that there must be some good tools for web development, but was not sure about Windows app support. ... (or Edge) as well to check web apps. The extension is similar to the ... used the Chrome version for our Web Application as well. If you use or used ...

01.02.2020 | 576 4 | Code-Inside Blog

9

T-SQL Pagination

The problem This is pretty trivial: Let’s say you have blog with 1000 posts in your database, but you only want to show 10 entries “per page”. You need to find a way how to slice this dataset into smaller pieces. The solution In theory you could load everything from the database and filter the results “in memory”, but this would be quite stupid for many reasons (e.g. you load much more ...

31.12.2019 | 911 21 | Code-Inside Blog

6

Did you know that you can build .NET Core apps with MSBuild.exe?

... the same. Be aware Regarding ASP.NET Core applications: The ‘dotnet publish’ command will create a web .config file - if you use the MSBuild approach this file will not be created automatically. I’m not ... switch, but if you just treat .NET Core apps like .NET Framework console applications the web .config file is not generated. This might lead to some problems when you deploy this to ...

01.12.2019 | 442 0 | Code-Inside Blog

10

IdentityServer & Azure AD Login: Unkown Response Type text/html

The problem Last week we had some problems with our Microsoft Graph / Azure AD login based system. From a user perspective it was all good until the redirect from the Microsoft Account to our IdentityServer. As STS and for all auth related stuff we use the excellent IdentityServer4. We used the following configuration: services.AddAuthentication() ...

13.10.2019 | 582 2 | Code-Inside Blog

7

Enforce Administrator mode for builded dotnet exe applications

The problem Let’s say you have a .exe application builded from Visual Studio and the application always needs to be run from an administrator account. Windows Vista introduced the “User Account Control” (UAC) and such applications are marked with a special “shield” icon like this: TL;DR-version: To build such an .exe you just need to add a __“application.manifest” and request ...

30.09.2019 | 379 1 | Code-Inside Blog

6

Check installed version for ASP.NET Core on Windows IIS with Powershell

The problem Let’s say you have a ASP.NET Core application without the bundled ASP.NET Core runtime (e.g. to keep the download as small as possible) and you want to run your ASP.NET Core application on a Windows Server hosted by IIS. General approach The general approach is the following: Install the .NET Core hosting bundle and you are done. Each .NET Core Runtime (and there are ...

01.09.2019 | 686 10 | Code-Inside Blog

5

SQL Server, Named Instances & the Windows Firewall

The problem “Cannot connect to sql\instance. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating ...

01.08.2019 | 548 8 | Code-Inside Blog

7

Jint: Invoke Javascript from .NET

If you ever dreamed to use Javascript in your .NET application there is a simple way: Use Jint. Jint implements the ECMA 5.1 spec and can be use from any .NET implementation (Xamarin, .NET Framework, .NET Core). Just use the NuGet package and has no dependencies to other stuff - it’s a single .dll and you are done! Why should integrate Javascript in my application? In our product ...

01.07.2019 | 465 0 | Code-Inside Blog

7

Build Windows Server 2016 Docker Images under Windows Server 2019

Since the uprising of Docker on Windows we also invested some time into it and packages our OneOffixx server side stack in a Docker image. Windows Server 2016 situation: We rely on Windows Docker Images, because we still have some “legacy” parts that requires the full .NET Framework, thats why we are using this base image: FROM ...

01.06.2019 | 589 7 | Code-Inside Blog

5

Update OnPrem TFS 2018 to AzureDevOps Server 2019

We recently updated our OnPrem TFS 2018 installation to the newest release: Azure DevOps Server The product has the same core features as TFS 2018, but with a new UI and other improvements. For a full list you should read the Release Notes. *Be aware: This is the OnPrem solution, even with the slightly missleading name “Azure DevOps Server”. If you are looking for the Cloud solution ...

01.05.2019 | 604 4 | Code-Inside Blog

9

Load hierarchical data from MSSQL with recursive common table expressions

Scenario We have a pretty simple scenario: We have a table with a simple Id ParentId schema and some demo data in it. I have seen this design quite a lot in the past and in the relational database world this is the obvious choice. Problem Each data entry is really simple to load or manipulate. Just load the target element and change the ParentId for a move action etc.. A more complex ...

01.04.2019 | 503 0 | Code-Inside Blog

6

Check Scheduled Tasks with Powershell

Task Scheduler via Powershell Let’s say we want to know the latest result of the “GoogleUpdateTaskMachineCore” task and the corresponding actions. All you have to do is this (in a Run-As-Administrator Powershell console) : Get-ScheduledTask where TaskName -EQ 'GoogleUpdateTaskMachineCore' Get-ScheduledTaskInfo The result should look like this: LastRunTime : ...

27.02.2019 | 1250 44 | Code-Inside Blog

8

Office Add-ins with ASP.NET Core

The “new” Office-Addins Most people might associate Offce-Addins with “old school” COM addins, but since a couple of years Microsoft pushes a new add-in application modal powered by HTML, Javascript and CSS. The cool stuff is, that these add-ins will run unter Windows, macOS, Online in a browser and on the iPad. If you want to read more about the general aspects, just checkout the ...

01.02.2019 | 648 0 | Code-Inside Blog

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