A friend of mine encountered a problem a while ago. The point of the problem is which of the catch and finally code blocks in try…catch…finally executes first. This question seems very simple, of course it is “catch executed first, finally executed later”? Is it really? There is the following…

In this article, I will share with you on how to “ build a tool to compile and run C# code in the browser”. The core technology is to write WebAssembly and Roslyn technology in C# without relying on the Blazor framework. 1. Why such a tool is needed? For…

Today, a friend told me that he had encountered a strange bug in a very simple piece of C# code, which was to find a random item from a List as follows: var random = new Random(); var users = Enumerable.Range(0, 10).Select(p => new User(p, "A" + p)).ToList(); var user = users.Find(p…

Because in the previous version, Entity Framework Core (EF Core) could not efficiently insert, modify and delete data in batches, so I developed Zack.EFCore.Batch, an open-source project, which was quite popular and obtained more than 400 stars. Since .NET 7, EF Core has built-in support for the efficient batch updating…

It’s common to see .Net developers tease: “Why are Java developers always learning about JVM tuning? That’s because Java sucks! We don’t need that at .NET!” Or is it? Today I will use a case to analyze. Yesterday, a student asked me a question: He built a default ASP. Net…

In Domain-Driven-Deisgn (DDD), Strongly-typed-id is an important concept. Developers can benefit from using strongly-typed-id for the identity of an entity type. For example, the following is a method for removing a user by a specified id: void RemoveById(long id); We cannot tell what ‘id’ refers to. If we pass a…

Ten days ago, I published an open-source program for trimming .NET Core applications, which is Zack.DotNetTrimmer. Compared with. NET Core built-in trimmer, Zack.DotNetTrimmer not only can compresses more, but also supports WPF and WinForm. The repository is https://github.com/yangzhongke/Zack.DotNetTrimmer Many developers are interested in the principle of this open-source project, so…

Last week, I published an open source program for slimming .NET Core applications, which is Zack.DotNetTrimmer. Compared with. NET Core built-in trimmer, Zack.DotNetTrimmer not only can compresses more, but also supports WPF and WinForm. Here is the comparison between Zack.DotNetTrimmer and .NET built-in trimmer: Repository: https://github.com/yangzhongke/Zack.DotNetTrimmer Within a week, the…

Why I developed an application trimmer for .NET Core? .NET Core has the capability of tailoring unused code, however, because it is implemented using static analysis, its tailoring is not optimal. It has the following two disadvantages: It doesn’t support Windows Forms or WPF, and it’s desktop developers who are…