C# Struct method doesn't save value if accessed by a property

Question

I need to create a structure that looks like an int (but has an extra field that I need...), so I created a new structure named TestStruct added one method (test()) that I n

Answer 1

It's a struct, so it's a value type - it's copied by value, not by reference.

Properties are just syntactic sugar around method calls, Val compiles down to this:

private TestStruct _valBackingField;
public TestStruct get_Val {
    return _valBackingField;
}

When accessing a struct through a property, you are getting a fresh copy every time you access the Getter. When accessing a struct through a field, you are getting the same object every time.

That's why mutable value types are considered evil™.