C# Pass by Reference: A Comprehensive Guide

Why C# Pass by Reference Is Important in Object-Oriented Programming

C# Pass by reference plays a major role in object-oriented programming (OOP) because it lets users configure the memory location of a variable without ever passing in its actual value. 

To truly understand this idea, you have to know what it means to pass a parameter by reference; that is, to transfer the value of an argument in the calling function to the parameters of the corresponding called function.

As a refresher, C# is a general-purpose language, developed by Microsoft to run all kinds of applications on the .NET framework. C# supports many operations including variables, methods, objects, properties, and events. C# methods can take multiple parameters to generate the desired output.  

With that in mind, there are two ways to pass a parameter into a method: by value or by reference. 

What Distinguishes C# Pass by Reference from Pass by Value?

The easier option is to pass parameters by value, copying a variable into another function or method to be altered in some way. 

Whenever a simple variable becomes a method parameter, it is assigned a certain value. This value stored in the original variable gets copied to the method, thereby creating a local environment for changing or modifying them without affecting the passed in variable. 

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Denis Panjuta, Tutorials.eu by Denis Panjuta