When validating a user's date of birth with FluentValidation, comparing the input against DateTime.Now.Date can produce unexpected results: an error may incorrectly state that the input date (e.g. 2020-07-06) cannot be after the current date, even when the actual current date is 2020-07-08, and the...
In C#, the ref and out keywords are used for parameter passing, enabling a method to modify the values of variables passed to it. However, they follow different rules and are suited for distinct scenarios. ref Keyword ref indicates pass-by-reference. Modifications to the parameter within the method...
The .NET framework includes various generic collections, such as Stack<T> for last-in-first-out operations, Queue<T> for first-in-first-out, List<T> for ordered and indexed elements, LinkedList<T> for doubly linked lists without indexing, and ISet<T> implementations lik...
System Architecture The solution consists of two distinct C# applications: a Controller application running on the local machine, and a Bot agent executing on the remote target machine. The Controller issues commands serialized as JSON, transmits them through the Telegram cloud, and waits for the Bo...
C# Method Signature Generation Quickly scaffold method definitions by typing a shortcut keyword followed by the Tab key. method: Standard method imethod: Interface method (lacks implementation body) vmethod: Virtual method smethod: Static method xmethod: Extension method amethod: Asynchronous method...
Directly transmittign an Excel workbook from an ASP.NET backend to a web client involves transforming object collections into tabular data, serializing the output to a memory buffer, and configuring the apropriate HTTP respnose headers. public void ExportCollectionAsExcel<T>(IEnumerable<T&g...
C# syntactic features refer to a set of language capabilities designed to reduce boilerplate code and improve code legibility. All these features are compiled down to lower-level runtime-compatible code during build, while offering far more intuitive and concise syntax for developers. Expression-Bod...
A method is a named block of code that encapsulates a set of instructions to perform a specific task. Programs are structured using methods to promote code reuse and organization. Every C# application contains at least one class with a Main method, which serves as the entry point. To utilize a metho...
The ThreadPool provides a managed pool of worker threads, optimizing the execution of numerous short-lived asynchronous operations. Creating a new thread for each brief task incurs significant overhead. The ThreadPool mitigates this by maintaining a reusable collection of threads, assigning queued w...
Modifying the Web API Route Configuraton By default, ASP.NET Web API uses a routing convention that maps HTTP methods (GET, POST, PUT, DELETE) to controller actions without requiring an explicit action name in the URL. This convention-based routing can become problematic when you need multiple opera...