Why we need Properties in C#

Question

Can you tell me what is the exact usage of properties in C# i mean practical explanation

in our project we are using properties like

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Answer 1

Properties are used to restrict direct access to member variables of a class. Abstraction is maintained using properties. Whenever you want to instantiate an object and set data to it's member variables using property you can check some conditions whether the value will be set to the member variable or not. You can restrict read write to a property so that the value of member variable can be readonly, writeonly while accessing the object of that class.