In C#, a predicate is a delegate (a type that refers to a method) or a lambda expression that takes a single parameter and returns a Boolean value indicating whether the input meets certain criteria. For example, the code below defines a predicate that tests if a given integer is even: A func, on the […]
Predicate vs Func in C# Read More »
You can use the null-coalescing operator (??) to provide a default value for a nullable type or reference type. The null-coalescing operator returns the left-hand operand if it is not null, or the right-hand operand if the left-hand operand is null. Here is an example of how to use the null-coalescing operator: This is equivalent
Null-coalescing operator in C# Read More »
In C#, an Array is a collection of items that are stored in a contiguous block of memory. It is a fixed size, meaning that you must specify the size of the array when you create it, and you cannot change the size of the array later. Arrays are also index-based, meaning that you access
Array vs ArrayList in C# Read More »
An array in C# is a collection of variables that are stored together in a contiguous block of memory. Arrays are used to store multiple values in a single object, and can be used to store values of any data type, including primitive types like integers and strings, and reference types like objects. Arrays are
Top 5 array methods in C# with examples Read More »
This article explains to update an existing ASP.NET 5 project to ASP.NET 6. I am going to use a fully-functional .NET 5 MVC application to show how you can do it step by step.
Migrate from ASP.NET Core 5.0 to 6.0 Read More »
const and readonly are two very useful keywords in C# that as a .NET developer you might see in any real-world application. When used within the same class, these keywords often confuse us as developers. But, what are the similarities and differences between const and readonly? Declaring CONST vs READONLY Per definition, Constants are immutable values
CONST vs READONLY in C# Read More »
In the C# language, the enum type (aka enumeration) is a user-defined value type used to represent a list of named integer constants. Enums are really useful when you want to generate dropdowns with well-known values (ex: a drop-down of weekdays, months, etc.), user-defined code flags. Even though declaring enums is very straightforward, there are many
Iterate through an enumeration (Enum) in C# Read More »
nUnit is an open-source unit testing framework for the .NET Framework and Mono. By using nUnit you can test your Services, but also your Controllers, Actions, etc. It was initially ported from JUnit (a Java unit testing framework) and it has been developed and continually rewritten with many new features and support for a wide
NUnit Testing Framework Guide – That() Read More »
What is DBContext? DbContext or the Entity Framework Database Context file is the most important Entity Framework class because this class serves as the translator between the database tables and C# classes as we also know, C# Data Models. DBContext is able to understand both C# and SQL code, so it able to convert C#
Adding DbContext to .NET Core Web API Read More »
.NET Core 3.0 which is the latest .NET Core version is currently in Preview and can be used with Visual Studio 2019 which is also in Preview. So, after you install the necessary files for .NET Core Framework and Visual Studio you would expect that it will appear as a framework that you can select
ASP.NET Core 3.0 not showing on Visual Studio 2019 Read More »
