如何在C＃中将ArrayList转换为字符串数组（string []）

Question

如何在C＃中将ArrayList转换为string[] ？

Answer 1

string[] myArray = (string[])myarrayList.ToArray(typeof(string));

Answer 2

A simple Google or search on MSDN would have done it. Here:

ArrayList myAL = new ArrayList(); 

// Add stuff to the ArrayList.
String[] myArr = (String[]) myAL.ToArray( typeof( string ) );

Answer 3

using System.Linq; public static string[] Convert(this ArrayList items) { return items == null ? null : items.Cast<object>() .Select(x => x == null ? null : x.ToString()) .ToArray(); }

Answer 4

使用.ToArray（类型）

string[] stringArray = (string[])arrayList.ToArray(typeof(string));

Answer 5

Try do that with ToArray() method.

ArrayList a= new ArrayList(); //your ArrayList object
var array=(String[])a.ToArray(typeof(string)); // your array!!!

Answer 6

Another way is as follows.

System.Collections.ArrayList al = new System.Collections.ArrayList();
al.Add("1");
al.Add("2");
al.Add("3");
string[] asArr = new string[al.Count];
al.CopyTo(asArr);

Answer 7

You can use CopyTo method of ArrayList object.

Let's say that we have an arraylist, which has String Type as Elements.

strArrayList.CopyTo(strArray)