C # Multiple Comparator implementations

C # Collection Implementation of the de-weight, intersection, difference set, etc., used to compare, there are several ways to meet.

Data:

varList =NewList<myclass> {    NewMyClass {MyProperty1 ="Ten", MyProperty2 =" -" },    NewMyClass {MyProperty1 ="Ten", MyProperty2 =" -" },    NewMyClass {MyProperty1 =" -", MyProperty2 =" -" }};

Method One:

 Public classmyclass{ Public stringMyProperty1 {Get;Set; }  Public stringMyProperty2 {Get;Set; }  Public Override BOOLEquals (Objectobj) {        if(ReferenceEquals (obj,NULL))return false; if(ReferenceEquals ( This, obj))return true; varo = obj asMyClass; returno.myproperty1.equals (o.myproperty1); }     Public Override intGetHashCode () {returnMyproperty1.gethashcode (); }}

Usage:

List. Distinct (); // Go heavy

Method Two:

 Public classMyclass:iequatable<myclass>{     Public stringMyProperty1 {Get;Set; }  Public stringMyProperty2 {Get;Set; }  Public BOOLEquals (MyClass other) {if(ReferenceEquals (Other,NULL))return false; if(ReferenceEquals ( This, other))return true; returnMyproperty1.equals (Other.    MYPROPERTY1); }}

Usage:

List. Distinct (); // Go heavy

Method Three:

 Public classmyclass{ Public stringMyProperty1 {Get;Set; }  Public stringMyProperty2 {Get;Set; }} Public classMyclassiequalitycomparer:iequalitycomparer<myclass>{     Public BOOLEquals (MyClass x, MyClass y) {if(ReferenceEquals (x,NULL))return false; if(ReferenceEquals (Y,NULL))return false; if(ReferenceEquals (x, y))return true; returnx.myproperty1.equals (y.myproperty1); }     Public intGetHashCode (MyClass obj) {returnobj.    Myproperty1.gethashcode (); }}

Usage:

List. Distinct (new myclassiequalitycomparer ()); // Go heavy

C # Multiple Comparator implementations