Csharp/CSharp Tutorial/Data Structure/Array ConvertAll

Array.ConvertAll: convert all elements from one type to another type

<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()
   {
       string[] strArray = new string[] { "75.3", "25.999", "105.25" };
       double[] doubleArray = Array.ConvertAll<string, double>(strArray, Convert.ToDouble);
       Console.Write("Converted to doubles: ");
       Array.ForEach<double>(doubleArray, delegate(double x) { Console.Write(x + " "); });
       Console.WriteLine();
   }

}</source>

Converted to doubles: 75.3 25.999 105.25

Array.ConvertAll: convert all string elements from lower case to upper case

<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()
   {
       string[] strArray2 = new string[] { "Blah", "Foo", "Canonical" };
       Console.Write("Before converting to-upper: ");
       Array.ForEach<string>(strArray2, delegate(string x) { Console.Write(x + " "); });
       Console.WriteLine();
       string[] revArray = Array.ConvertAll<string, string>(strArray2, delegate(string s) { return s.ToUpper(); });
       Console.Write("Converted to upper-case: ");
       Array.ForEach<string>(revArray, delegate(string x) { Console.Write(x + " "); });
       Console.WriteLine();
   }

}</source>

Before converting to-upper: Blah Foo Canonical
Converted to upper-case: BLAH FOO CANONICAL