using System;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Text;
using System.Runtime.Serialization;
public class Employee : System.IComparable {
private int _id;
private string _name;
private string _rating;
private static SortOrder _order;
public enum SortOrder {
Ascending = 0,
Descending = 1
}
public Employee(int id, string name)
: this(id, name, "Other") {
}
public Employee(int id, string name, string rating) {
this._id = id;
this._name = name;
this._rating = rating;
}
public int Id {
get { return this._id; }
set { this._id = value; }
}
public string Name {
get { return this._name; }
set { this._name = value; }
}
public string Rating {
get { return this._rating; }
set { this._rating = value; }
}
public static SortOrder Order {
get { return _order; }
set { _order = value; }
}
public override bool Equals(Object obj) {
bool retVal = false;
if (obj != null) {
Employee custObj = (Employee)obj;
if ((custObj.Id == this.Id) &&
(custObj.Name.Equals(this.Name) &&
(custObj.Rating.Equals(this.Rating))))
retVal = true;
}
return retVal;
}
public override string ToString() {
return this._id + ": " + this._name;
}
public int CompareTo(Object obj) {
switch (_order) {
case SortOrder.Ascending:
return this.Name.CompareTo(((Employee)obj).Name);
case SortOrder.Descending:
return (((Employee)obj).Name).CompareTo(this.Name);
default:
return this.Name.CompareTo(((Employee)obj).Name);
}
}
}
public class CollectionTest {
public static void Main() {
List<Employee> collCustList = new List<Employee>();
collCustList.Add(new Employee(99, "H", "P"));
collCustList.Add(new Employee(77, "B", "G"));
collCustList.Add(new Employee(55, "B", "G"));
collCustList.Add(new Employee(88, "B", "P"));
collCustList.Add(new Employee(11, "L", "O"));
foreach (Employee cust in collCustList)
Console.Out.WriteLine(cust);
Employee.Order = Employee.SortOrder.Ascending;
collCustList.Sort(delegate(Employee cust1, Employee cust2) {
return Comparer<Employee>.Default.Compare(cust1, cust2);
});
foreach (Employee cust in collCustList)
Console.Out.WriteLine(cust);
Employee.Order = Employee.SortOrder.Descending;
collCustList.Sort(delegate(Employee cust1, Employee cust2) {
return Comparer<Employee>.Default.Compare(cust1, cust2);
});
foreach (Employee cust in collCustList)
Console.Out.WriteLine(cust);
}
}
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