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Our Posts
The Right Way to Use MOQ Setup and Returns
When it comes to unit testing in C#, one of the most popular mocking frameworks is MOQ. MOQ allows you to create fake implementations of classes or interfaces on the fly, making it easier to isolate and test specific parts of your code. In this article, we will discuss the right way to use MOQ’s …
Using LINQ to Group a List of Objects into a New Grouped List of List of Objects
Problem Statement Suppose we have a list of objects representing users, and each user has a GroupID property. We want to group these users based on their GroupID and create a new list where each group is represented as a list of users. Additionally, we want to display the usernames and userIDs separately for each …
How to Set Column Header Text for a Specific Column in DataGridView in C#
Prerequisites To follow along with this tutorial, you will need a basic understanding of C# programming and the Windows Forms framework. Step-by-Step Guide Step 1: Create a new Windows Forms application First, let’s create a new Windows Forms application in Visual Studio. Open Visual Studio and select “Create a new project”. Choose the “Windows Forms …
How to Create an Excel (.XLS and .XLSX) File in C# without Installing Microsoft Office
If you’re a C# developer looking to create Excel files without the need to install Microsoft Office, you’re in luck! There are several libraries available that can help you achieve this task easily and efficiently. In this article, we will explore two popular libraries, ExcelLibrary and EPPlus, and discuss how to use them to create …
Why would one use Task over ValueTask in C#?
When working with asynchronous programming in C#, developers have the option to use either Task<T> or ValueTask<T> to represent the result of an asynchronous operation. Both types provide similar functionality, but there are certain scenarios where using Task<T> is preferred over ValueTask<T>. In this article, we will explore the reasons why one would choose Task<T> …
Better Way to Cast Object to Int in C#
Have you ever encountered a situation where you needed to cast an object to an integer in your C# code? If so, you may have wondered what the best approach is to achieve this. In this article, we will explore different methods to cast an object to an int in C# and discuss the scenarios …
How to Convert a DataTable to a CSV File in C#
If you are working with data in a DataTable object in C#, you may need to convert it to a CSV (Comma-Separated Values) file format for various reasons. A CSV file is a simple text file where each line represents a row of data, and the values are separated by commas. In this article, I …
How to Remove All HTML Tags from a String in C#
If you’ve ever encountered a situation where you need to remove all HTML tags from a string, but you don’t know which tags are present, you’re in the right place. In this article, I will guide you through the process of removing HTML tags from a string using C#. What is the Problem? When working …
How to Play a Sound in C# using .NET
Playing sounds in a C# application can add an interactive and engaging element to your program. Whether you want to include sound effects, background music, or audio notifications, C# provides a straightforward way to accomplish this using the .NET framework. In this article, we will explore how to play a sound in C# using .NET, …
.NET Excel Library: Reading and Writing .xls Files
If you are working with .xls files in your .NET application and need a library that can handle reading and writing operations, you may find NPOI to be a valuable tool. NPOI is a free library that works exclusively with .xls files and does not require Microsoft Office to be installed on your machine. In …