I got a question about how to find all public symbols in a solution that can be internal. This is a common scenario when you want to reduce the visibility of your code to improve encapsulation. You can use Roslyn as a library to analyze the code in a solution and find such symbols. I've already written about how to use Roslyn as a library to analyze and rewrite code in a solution: . This post will build… [read more]

Some applications are displaying sensitive information. With Recall, Windows can take a screenshot of your screen regularly and store sensitive information. You can exclude your application from this feature, and screen capture more generally, by using SetWindowDisplayAffinity and the WDA_EXCLUDEFROMCAPTURE flag. This is a Windows API function that allows you to set the display affinity of a window, which… [read more]

GitHub Actions doesn't provide a built-in way to rerun a run automatically. If you have some flakiness in your jobs, this can be a pain as you have to rerun the workflow manually. Hopefully, you can use the workflow_run event to trigger a new workflow when a previous one fails. This allows you to rerun the failed workflow automatically. Note that the following sample workflow will only rerun the failed… [read more]

Merging two Git repositories can be useful in scenarios where you want to consolidate related projects into a single repository for easier management, collaboration, and version control. This approach is particularly helpful when two repositories share a common purpose or are tightly coupled, as it simplifies dependency management and ensures all related code resides in one place. Additionally, it can… [read more]

Nullable Reference Types are a feature in C# that helps developers avoid null reference exceptions by providing compile-time checks for nullability. This feature was introduced in C# 8.0 and is designed to improve code quality and reduce runtime errors. When the compiler cannot handle all cases, so developers may need to use the null-forgiving operator ! to suppress warnings. This operator tells the… [read more]

The C# compiler is smart enough to understand some constructs and generates optimized code. However, C# gives you multiple ways to express the same intent. The compiler is not always smart enough to optimize every single ways. In this post, I will show you how to use pattern matching syntax to improve the performance of your code in some cases. Here's an example that checks if a version number is one of… [read more]

When creating a new virtual machine in Hyper-V with Ubuntu Server with all the default settings, the partition will have 60GB of space instead of 127GB (default size of the virtual hard disk). Maybe there is a setting somewhere that I missed during the setup, but I couldn't find it. The solution is to resize the partition after the installation. This can be done with the following commands: First, check… [read more]

In .NET, many types provide a static Parse method to convert strings into their respective types. For example: int.Parse("123"); double.Parse("123.45"); DateTime.Parse("2023-01-01"); IPAddress.Parse("192.168.0.1"); However, enums require the use of the Enum.Parse method: Enum.Parse<MyEnum>("Value1"); // MyEnum.Parse("Value1"); // This doesn't work Wouldn't it be more intuitive if enums supported a Parse… [read more]

CultureInfo.InvariantCulture is not invariant for all operations. It is a special culture that is used for formatting and parsing operations that do not depend on any specific culture. For instance, this is well-suited to format values in order to persist them. However, it is not invariant for string comparisons. Comparing strings using InvariantCulture can lead to different results depending on the… [read more]

Renaming a .NET project is tedius. You have to rename the files and folders. You also have to replace the content in the files, such as namespace, or path in .sln files. Here's a PowerShell script that renames files and folders and replaces content in files: $ErrorActionPreference = "Stop" $rootFolder = Resolve-Path -Path "." $oldName = "Sample.Foo" $newName = "Sample.Bar" # Rename files and folders… [read more]