Ryadel

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 - Leave a 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 - Leave a 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 …

ASP.NET / Coding / Windows

ASP.NET – Create MSI or setup.exe installer for any .NET Project with WiX How you can use the open-source WiX toolset to create a MSI or Setup.exe installer package for your ASP.NET projects to ensure a smooth install experience to your users

April 13, 2019April 13, 2019 - by Ryan - Leave a Comment

If you’re an ASP.NET developer working with client applications using either Windows Forms (aka WinForms) projects, WPF Projects, Windows Console applications, Windows Service projects and/or any .NET Core Desktop App …

ASP.NET / Coding / Tools & Utilities

ASP.NET How to set the proper Data Type of MS Excel cells with EPPlus A short guide explaining how to properly format the data type for numeric and date cells and/or columns within a MS Excel Worksheet (XLSX file) using EPPlus

March 29, 2019March 29, 2019 - by Ryan - Leave a Comment

If you’ve stumbled upon this post you most likely already know EPPlus, one of the best open-source libraries to programmatically read, create and edit MS Excel files in XLS and …

ASP.NET / Coding / Tools & Utilities

ASP.NET – How to format and style a Excel XLSX Worksheet with EPPlus A brief tutorial explaining how to apply styles and format rules to a Worksheet created with EPPlus: bold, colors, auto-filter, auto-fit and more!

March 29, 2019March 29, 2019 - by Ryan - Leave a Comment

We already talked about EPPlus in this post, where we described it as one of the best open-source libraries to programmatically read, create and edit MS Excel files in XLS …

ASP.NET / Coding / Tools & Utilities

ASP.NET – Generate MS Excel files programmatically with EPPlus How to generate XLS and XLSX Excel files programmatically from any ASP.NET, ASP.NET MVC or ASP.NET Core application with the free EPPlus NuGet package

March 29, 2019March 29, 2019 - by Ryan - Leave a Comment

If you’ve stumbled upon this post it most likely means that you’re looking for a way to generate MS Excel XLS / XLSX files within your ASP.NET web application. The …

Visual Studio 2013 e 2015: Unable to start debugging on the web server. Could not start ASP.NET debugging - Come risolvere

ASP.NET / Coding

Visual Studio – How to rename a ASP.NET Web Site project Quick guide explaining how to rename an existing ASP.NET Web Site in Visual Studio 2013, 2015, 2017 and 2019

March 4, 2019March 4, 2019 - by Ryan - Leave a Comment

If you stumbled upon this post it most likely mean that you’re having some issues trying to rename a ASP.NET Web Site within a Visual Studio solution. As you might …