Ryadel

The ASP.NET Core Revolution – .NET Core history through the years (2016-2019) An extensive recap of the latest four years of ASP.NET Core: relevant milestones, new features, architecture improvements, optimizations, and so on

October 3, 2019October 3, 2019 - by Ryan - Leave a Comment

To summarize what happened in the ASP.NET world within the last four years is not an easy task; in short words, we can say that we’ve undoubtedly witnessed the most …

ASP.NET / Coding / Linux / Servers & Services

ASP.NET Core – How to Shutdown / Restart a Web Application programmatically How to shutdown and restart a ASP.NET Core Web Application programmatically and remotely trigger it with a HTTP request

October 1, 2019October 1, 2019 - by Ryan - Leave a Comment

Being able to restart an ASP.NET Core web application programmatically can be very useful, expecially if you’ve published it on a Linux host – which is what I almost always …

ASP.NET / Coding / Linux

ASP.NET Core on Linux – Unable to load DLL libgdiplus – how to fix it How to fix the Unable to load DLL libgdiplus - gdiplus.dll not found in Linux error using ASP.NET Core and Linux

September 23, 2019September 23, 2019 - by Ryan - Leave a Comment

Today I faced a minor issue while trying to publish my ASP.NET Core project on my Linux CentOS production machine. The error I got was the following:

ASP.NET / Coding / Servers & Services

Create a Windows Service in ASP.NET C# – .NET Framework Quick tutorial explaining how to create and configure a custom Windows Service in ASP.NET C# with Visual Studio 2019

August 21, 2019August 22, 2019 - by Ryan - Leave a Comment

In this post I’ll briefly explain how to create and configure a custom Windows Service in C# using Visual Studio 2019. Before we start, it could be wise to quickly …

ASP.NET / Coding

MergeTIFF – Free tool to merge multiple TIFF files into one A lightweight, open-source .NET Core console application to merge multiple TIFF files in a single multi-page TIFF file - source code available on GitHub

July 29, 2019August 22, 2019 - by Ryan - Leave a Comment

In this post, we’ll talk about MergeTIFF, a lightweight .NET Core console application that merges multiple TIFF files (including multi-page ones) into a single multi-page TIFF file. The full source …

ASP.NET / Coding / Design / Windows

Visual Studio – parameter instance with value null (and other design errors) when opening XSD files How to fix the "Value cannot be null. Parameter name: instance" error when opening XSD files in design mode with Visual Studio 2017 or 2019

July 16, 2019July 16, 2019 - by Ryan - 1 Comment

If you’ve stumbled upon this post it most likely means you’re having issues while trying to open XSD files from Visual Studio 2017 or 2019. More specifically, this problem often …

ASP.NET / Coding / Servers & Services / Web

ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION error in Chrome – How to fix How to address a nasty HTTP error that you could get in Google Chrome browser when you're handling files with commas in their filename

June 24, 2019June 24, 2019 - by Ryan - Leave a Comment

Today we were called to fix a strange issue that was happening to one of our colleagues when trying to download a PDF file from one of our Document Management …

Coding

ASP.NET C# DateTime helper functions to add, subtract, calculate and get Business Days A set of useful DateTime-based helper classes to skip holidays and add-subtract-calculate business days (including Easter, Easter monday and other country-specific holidays)

June 19, 2019July 2, 2019 - by Ryan - Leave a Comment

Today I had to find a way to perform some rather “uncommon” DateTime-based operations: to be more specific, I needed to check if a date object resulting from a user …

ASP.NET / Coding / Cyber Security / HTML & CSS / Servers & Services

ValidateTokens exception on ASP.NET MVC Login: how to fix How to overcome a ValidateTokens exception that could hinder your login phase in an ASP.NET MVC Web Application form with the Anti-Forgery token feature on

June 14, 2019June 17, 2019 - by Ryan - Leave a Comment

Today I had to help one of my developers who was experiencing a strange issue in an ASP.NET MVC Application (based upon .NET Framework 4.8) he was debugging. The error …

ASP.NET / Coding / Servers & Services

How to read, write, modify and delete Cookies in ASP.NET C# A brief tutorial illustrating how to manage Cookies in ASP.NET Web Forms, MVC and Core with examples of code in C Sharp language

June 12, 2019June 17, 2019 - by Ryan - 1 Comment

Dealing with Cookies has been a typical requirement of most web developers since the early days of the World Wide Web. In this article, after a brief introduction to explain …