Client and Server side validation

Implementation of ploymorphism in real world projects and cases. staic and dynamic polymorphism explained with examples.

Validations in c#

Async and Await in c#, Difference between thread and task

How to implement generics in classes and functions?

Something more about delegates, Top inteview questions about delegates.

1.Why to use sealed class in Singleton when private constructor could prevent inheritance? 2. Multi thread application in Singleton? 3. Lock in Singleton 4.Lazy and Eager loading in Singleton 5.Exception handling in Singleton

Pracricle implementations of Singleton design pattern

Singleton Desgn pattern, Difference between static and Singleton, why do we use sealed class in singleton

Design patterns - an introduction

SOLID design principle - an introduction by Er.Vaibhav singh chauhan