arraylist c# code example

Example 1: csharp create array list

ArrayList a1 = new ArrayList();
a1.Add(1);

Example 2: c# arraylist

ArrayList arrList = new ArrayList()

Example 3: arraylist in C#/

using System.Collections;

ArrayList arlist = new ArrayList(); 
// or 
var arlist = new ArrayList(); // recommended

Example 4: arraylist in C#

var arlist1 = new ArrayList();

var arlist2 = new ArrayList()
                    {
                        1, "Bill", " ", true, 4.5, null
                    };

int[] arr = { 100, 200, 300, 400 };

Queue myQ = new Queue();
myQ.Enqueue("Hello");
myQ.Enqueue("World!");

arlist1.AddRange(arlist2); //adding arraylist in arraylist 
arlist1.AddRange(arr); //adding array in arraylist 
arlist1.AddRange(myQ); //adding Queue in arraylist

Example 5: arraylist in C#

// adding elements using ArrayList.Add() method
var arlist1 = new ArrayList();
arlist1.Add(1);
arlist1.Add("Bill");
arlist1.Add(" ");
arlist1.Add(true);
arlist1.Add(4.5);
arlist1.Add(null);

// adding elements using object initializer syntax
var arlist2 = new ArrayList()
                {
                    2, "Steve", " ", true, 4.5, null
                };

Example 6: c# arraylist to listview

private void read()
{
    foreach(Person p in list)
    {
        ListViewItem item = new ListViewItem();
        item.Text = p.Name;
        item.SubItems.Add(p.Position);
        item.SubItems.Add(p.Team);
        lstvPerson.Items.Add(item);            
    }
}