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.NET C# Java Javascript Exception

Asp.net-mvc, C# Blogs & News

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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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.02.2019 | 51 0
4

How to use TensorFlow with AMD GPU's

How to use TensorFlow with AMD GPU’s Most machine learning frameworks that run with a GPU support Nvidia GPUs, but if you own a AMD GPU you are out of luck. Recently AMD has made some progress with their ROCm platform for GPU computing and does now provide a TensorFlow build for their gpus. Since I work with tensorflow and own a AMD GPU it was time to give it a try. I stumpled upon these ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
05.12.2018 | 237 26
6

Make your WCF Service async

Oh my: WCF??? This might be the elephant in the room: I wouldn’t use WCF for new stuff anymore, but to keep some “legacy” stuff working it might be a good idea to modernize those services as well. WCF Service/Client compatibility WCF services had always close relationships with their clients and so it is no suprise, that most guides show how to implement async operations on the server ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
03.12.2018 | 227 0
11

HowTo: Run a Docker container using Azure Container Instances

Azure Container Instances There are (at least) 3 diffent ways how to run a Docker Container on Azure: Using the Web App for Containers Using Azure Kubernetes Service (AKS) Using Azure Container Instances In this blogpost we will take a small look how to run a Docker Container on this service. The “Azure Container Instances”-service is a pretty easy service and might be a good first ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
13.11.2018 | 127 0
7

How to fix ERR_CONNECTION_RESET & ERR_CERT_AUTHORITY_INVALID with IISExpress and SSL

This post is a result of some pretty strange SSL errors that I encountered last weekend. The scenario: I tried to setup a development environment for a website that uses a self signed SSL cert. The problem occured right after the start - especially Chrome displayed those wonderful error messages: ERR_CONNECTION_RESET ERR_CERT_AUTHORITY_INVALID The “maybe” solution: When you ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.11.2018 | 199 6
9

Be afraid of varchar(max) with async EF or ADO.NET

Last month we had changed our WCF APIs to async implementations, because we wanted all those glorious scalability improvements in our codebase. The implementation was quite easy, because our service layer did most of the time just some simple EntityFramework 6 queries. The field test went horribly wrong After we moved most of the code to async we did a small test and it worked quite ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
27.09.2018 | 121 1
3

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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
31.08.2018 | 165 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
03.08.2018 | 131 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.08.2018 | 170 2
9

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

Oracle and .NET: Tales from the dark ages Each time when I tried to load data from an Oracle database it was a pretty terrible experience. I remember that I struggle to find the right Oracle driver and even when everything was installed the strange TNS ora config file popped up and nothing worked. It can be simple… 2 weeks ago I had the pleasure to load some data from a Oracle database and ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.06.2018 | 463 1
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
29.05.2018 | 542 0
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?”. ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.05.2018 | 844 0
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. ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.04.2018 | 723 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
28.02.2018 | 204 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.02.2018 | 218 0
8

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

It is quite common these days to “Login with Facebook/Google/Twitter”. Of course Microsoft has something similar. If I remember it correctly the first version was called “Live SDK” with the possibility to login with your personal Microsoft Account. With Office 365 and the introduction of Azure AD we were able to build an application to sign-in with a personal account via the ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
31.12.2017 | 229 0
3

VERMISST: Full-Stack Web-Entwickler (m/w) Frankfurt/München

Auch im neuen Jahr warten schon viele interessante Enterprise-Projekte auf uns, die wir ohne neue Kollegen nicht werden stemmen können. Deshalb suchen wir dringend nach Full-Stack Web-Entwickler (m/w) Angular, TypeScript, .NET, C# für Frankfurt und München. Bei SDX findest Du ein starkes eXpert-Team auf Augenhöhe und attraktive Enterprise-Projekte mit aktuellsten ...
.net .net-core allgemein angular architektur asp.net-mvc csharp dev entity-framework experts html5 javascript job jquery karriere linq mobile nhibernate react sdx sdx-ag typescript universal-platform visual-studio
08.12.2017 | 403 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
02.12.2017 | 773 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.12.2017 | 243 0
8

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

The last couple of weeks I worked with my buddy Gregor Biswanger on a new project called “Electron.NET“. As you might already guess: It is some sort of bridge between the well known Electron and .NET. If you don’t know what Electron is: It helps to build desktop apps written in HTML/CSS/Javascript The idea Gregor asked me a while ago if it is possible to build desktop apps with ASP.NET ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.11.2017 | 1014 0
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, ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.10.2017 | 617 2
4

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

... but I’m not sure if this is super secure, but it works. The code and sample can also be found on the offical GitHub repo The ‘WebApp’ Project This project is a regular ASP.NET MVC project with WebApi 2 included. Nothing ASP.NET Core related, but the actual doing would be pretty similar. On this page there are two ways to interact: Via Browser Via the WebApi Browser Auth via ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
31.08.2017 | 562 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
01.08.2017 | 1056 2
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
30.06.2017 | 322 0
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 ...
.net asp.net asp.net-mvc csharp css html5 iis javascript jquery web
30.05.2017 | 458 0
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