When do you use the “this” keyword? [closed]

Answer 1

In Jakub Šturc's answer his #5 about passing data between contructors probably could use a little explanation. This is in overloading constructors and is the one case where use of this is mandatory. In the following example we can call the parameterized constructor from the parameterless constructor with a default parameter.

class MyClass {
    private int _x
    public MyClass() : this(5) {}
    public MyClass(int v) { _x = v;}
}

I've found this to be a particularly useful feature on occasion.