C# - Early Binding and Late Binding with Example & Difference b/w Early & Late Binding

Introduction:

Here I will explain difference between early binding and late binding in c#.net with example or c#.net late binding vs early binding with example. 

Description:

In previous posts I explained OOPS examples in c#, polymorphism in c#, Difference b/w datareader, dataset and dataadapter in c#, Difference b/w appsettings and connection strings in asp.net, Difference b/w executereader, executenonquery and executescalar in c#, difference b/w view and stored procedure in sql and many articles relating to interview questions in c#, asp.net, sql server, javascript, jquery. Now I will explain Difference between early binding and late binding in c#.net with example.

Early Binding and Late Binding concepts occurred in polymorphism. First we will learn about polymorphism

Polymorphism

Polymorphism means many forms (ability to take more than one form). In Polymorphism poly means “multiple” and morph means “forms” so polymorphism means many forms.

In polymorphism we will declare methods with same name and different parameters in same class or methods with same name and same parameters in different classes. Polymorphism has ability to provide different implementation of methods that are implemented with same name.

In Polymorphism we have 2 different types those are

     -      Compile Time Polymorphism (Called as Early Binding or Overloading or static binding)

     -      Run Time Polymorphism (Called as Late Binding or Overriding or dynamic binding)

Compile Time Polymorphism or Early Binding

Compile time polymorphism means we will declare methods with same name but different signatures because of this we will perform different tasks with same method name. This compile time polymorphism also called as early binding or method overloading.

Method Overloading or compile time polymorphism means same method names with different signatures (different parameters)

For more details check this link polymorphism in c#

Run Time Polymorphism or Late Binding

Run time polymorphism also called as late binding or method overriding or dynamic polymorphism. Run time polymorphism or method overriding means same method names with same signatures.

In this run time polymorphism or method overriding we can override a method in base class by creating similar function in derived class this can be achieved by using inheritance principle and using “virtual & override” keywords.

For more details check this link polymorphism in c#

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