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I am writing a function that returns a reference to an object of some encapsulated data structure and I want nobody to be able to change the object using that reference, is it possible to do this in c#?
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Immutable objects are particularly useful in concurrent applications. Since they cannot change state, they cannot be corrupted by thread interference or observed in an inconsistent state.
String is an example of an immutable type. A String object always represents the same string. StringBuilder is an example of a mutable type. It has methods to delete parts of the string, insert or replace characters, etc.
In object-oriented and functional programming, an immutable object (unchangeable object) is an object whose state cannot be modified after it is created. This is in contrast to a mutable object (changeable object), which can be modified after it is created.
Immutability allows you to track the changes that happen to these objects like a chain of events. Variables have new references that are easy to track compared to existing variables. This helps in debugging the code and building the concurrent application.
If the object that you are returning is immutable, that will work fine.
If not, you can return a wrapper object that only exposes read-only properties.
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