FoxLearn | How to

Serialize a tuple to JSON in C#

By Tan Lee Published on Feb 05, 2025 457

When you serialize a tuple to JSON, the underlying ValueTuple field names, Item1 and Item2, are used. This is true even if you are using a named tuple. The field names you specify in the tuple declaration won't be reflected in the JSON.

How to check if a nullable bool is true in C#

By Tan Lee Published on Dec 24, 2024 436

In C#, nullable types allow you to represent data that can be absent or undefined, in addition to its usual valid values.

How to get application folder path in C#

By Tan Lee Published on Dec 05, 2024 852

To get the application folder path in a .NET application, you can use the Server.MapPath() method in ASP.NET or AppDomain.CurrentDomain.BaseDirectory for other types of applications.

How to get the current working folder in C#

By Tan Lee Published on Nov 13, 2024 712

In C#, you can get the current working directory using the Directory.GetCurrentDirectory() method, which is part of the System.IO namespace.

Using LINQ to remove elements from a List<T>

By Tan Lee Published on Dec 10, 2024 367

In LINQ, you cannot directly remove elements from a List<T> because LINQ itself is designed primarily for querying and transforming data, not for modifying collections.

Enum Generic Type Constraint in C#

By Tan Lee Published on Feb 04, 2025 374

In this post, let's look at how we can use Enum as a generic type constraint in C#. This feature was introduced in C# 7.3 and allows you to enforce that a type parameter is an enum, providing compile-time safety for your generic methods.