Lambda for getter and setter of property
C# 7 brings support for setters, amongst other members:
More expression bodied members
Expression bodied methods, properties etc. are a big hit in C# 6.0, but we didn’t allow them in all kinds of members. C# 7.0 adds accessors, constructors and finalizers to the list of things that can have expression bodies:
class Person { private static ConcurrentDictionary<int, string> names = new ConcurrentDictionary<int, string>(); private int id = GetId(); public Person(string name) => names.TryAdd(id, name); // constructors ~Person() => names.TryRemove(id, out _); // finalizers public string Name { get => names[id]; // getters set => names[id] = value; // setters } }
First of all, that is not lambda, although syntax is similar.
It is called "expression-bodied members". They are similar to lambdas, but still fundamentally different. Obviously they can't capture local variables like lambdas do. Also, unlike lambdas, they are accessible via their name:) You will probably understand this better if you try to pass an expression-bodied property as a delegate.
There is no such syntax for setters in C# 6.0, but C# 7.0 introduces it.
private int _x;
public int X
{
get => _x;
set => _x = value;
}