Fast clean way to check if an array contains particular element in C# 3.0

A good to know that really fast and the most elegant way to check if an array contains particular element in C# 3.0 seems to be using Contains() extension method.

using System;
using System.Diagnostics;
using System.Linq;
namespace Test
{
class Program
{
static void Main(string[] args)
{
int[] data = new int[10000000];

Random rand = new Random();
for (int i=0; i{
data[i] = rand.Next();
}

int value = data[data.Length/2];
ContainsViaForEachLoop(data, value);
ContainsViaForLoop(data, value);
ContainsViaContainsExtMethod(data, value);
ContainsViaAnyExtMethod(data, value);
Stopwatch watch = new Stopwatch();
watch.Start();
if (ContainsViaForEachLoop(data, value))
{
watch.Stop();
Console.WriteLine("foreach loop search:\t\t{0} ms",
watch.ElapsedMilliseconds);
}
watch.Reset();
watch.Start();
if (ContainsViaForLoop(data, value))
{
watch.Stop();
Console.WriteLine("for loop search:\t\t{0} ms",
watch.ElapsedMilliseconds);
}
watch.Reset();
watch.Start();
if (ContainsViaContainsExtMethod(data, value))
{
watch.Stop();
Console.WriteLine("Contains() method search:\t{0} ms",
watch.ElapsedMilliseconds);
}
watch.Reset();
watch.Start();
if (ContainsViaAnyExtMethod(data, value))
{
watch.Stop();
Console.WriteLine("Any() method search:\t\t{0} ms",
watch.ElapsedMilliseconds);
}
}
public static bool ContainsViaForEachLoop(int[] data, int value)
{
foreach (int i in data)
{
if (i == value)
{
return true;
}
}
return false;
}
public static bool ContainsViaForLoop(int[] data, int value)
{
for (int i=0; i{
if (data[i] == value)
{
return true;
}
}
return false;
}
public static bool ContainsViaContainsExtMethod(int[] data, int value)
{
return data.Contains(value);
}
public static bool ContainsViaAnyExtMethod(int[] data, int value)
{
return data.Any(i => i == value);
}
}
}