Csharp/CSharp Tutorial/Data Structure/IList

IList<T>: add, insert, and remove some items

<source lang="csharp">using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Text; public class MainClass {

   public static void Main()
   {
       IList<double> myList = new List<double>();
       myList.Add(1.54);
       myList.Add(29.2234);
       myList.Insert(1, 39.99);
       myList.Add(48.2);
       myList.Remove(10.4);
   }

}</source>

IList<T>: enumerate the list using Count and IList<T>"s indexer

<source lang="csharp">using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Text; public class MainClass {

   public static void Main()
   {
       IList<double> myList = new List<double>();
       myList.Add(10.5);
       myList.Add(209.224);
       myList.Insert(1, 3.999);
       myList.Add(48.2);
       myList.Remove(10.4);
       
       
       for (int i = 0; i < myList.Count; i++)
           Console.WriteLine(myList[i]);
   }

}</source>

10.5
3.999
209.224
48.2

IList<T>: print some specific element indexes

<source lang="csharp">using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Text; public class MainClass {

   public static void Main()
   {
       IList<double> myList = new List<double>();
       myList.Add(10.5);
       myList.Add(209.224);
       myList.Insert(1, 3.999);
       myList.Add(48.2);
       myList.Remove(10.4);
       Console.WriteLine("IndexOf {0} = {1}", 209.2234, myList.IndexOf(209.2234));
       Console.WriteLine("IndexOf {0} = {1}", 10.54, myList.IndexOf(10.54));
   }

}</source>

IndexOf 209.2234 = -1
IndexOf 10.54 = -1