Convert a ArrayList object to a array : ArrayList « Collections Data Structure « C# / C Sharp

1. C# / C Sharp
2. Collections Data Structure
3. ArrayList

Convert a ArrayList object to a array

 

//http://tinyerp.codeplex.com/
//GNU Library General Public License (LGPL)
//-----------------------------------------------------------------------
// <copyright file="SysUtil.cs" company="Pyramid Consulting">
//     Copyright (c) Pyramid Consulting. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

namespace Bamboo.Core.Common
{
    public class SysUtil
    {

        /// <summary>
        /// Convert a ArrayList object to a array
        /// </summary>
        /// <param name="alList">dest ArrayList to convert</param>
        /// <returns>dest array</returns>
        public static Object[] List2Array(System.Collections.ArrayList alList)
        {
            if (alList.Count == 0) return null;
            Object[] objSize = new Object[1];
            objSize[0] = alList.Count;
            Type[] types = new Type[1];
            types[0] = typeof(int);
            Object[] objArray = (Object[])alList[0].GetType().MakeArrayType().GetConstructor(types).Invoke(objSize);
            for (int i = 0; i < alList.Count; i++)
            {
                objArray[i] = alList[i];
            }
            return objArray;
        }
    }
}

   
  

Related examples in the same category

1.	Add items to ArrayList and use foreach loop to check
2.	Add array to ArrayList
3.	Remove range from ArrayList
4.	Clone an ArrayList
5.	CopyTo, ToArray(), ToArray(typeof(String))
6.	Using foreach to loop through ArrayList and use Indexer of ArrayList
7.	Check InvalidCastException when using foreach loop with ArrayList
8.	Binary Search an ArrayList
9.	Inserting into an ArrayList by index
10.	Checks time needed for list operations using an ArrayList implementation
11.	ArrayList Demo: hold class
12.	illustrates the use of ArrayList properties and methods
13.	illustrates the use of an ArrayList that contains objects of the Car class
14.	illustrates the use of ArrayLists 2
15.	Convert an ArrayList into an array
16.	Sort and search an ArrayList
17.	Demonstrate ArrayList
18.	Search for the first occurrence of the duplicated value
19.	Search for the first occurrence of the duplicated value in the last section of the ArrayList
20.	Search for the first occurrence of the duplicated value in a section of the ArrayList
21.	Search for the first occurrence of the duplicated value in a small section at the end of the ArrayList
22.	Represents a loose abstraction of an arraylist, wheres the buffer array is available for public access.