check if string exists in array c# code example

Example 1: how to check if a value is inside an array c#

/*Make sure to add 
using System.Linq;
*/


string[] printer = {"jupiter", "neptune", "pangea", "mercury", "sonic"};
if(printer.Contains("jupiter"))
{
    Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC"");
}

Example 2: c# check if string is in array

using System;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] planets = { "Mercury", "Venus",
                "Earth", "Mars", "Jupiter",
                "Saturn", "Uranus", "Neptune" };
          
          	if (planets.Contains("Jupiter"))
            {
              Console.WriteLine("It contains Jupiter");
            }

            Console.WriteLine("One or more planets begin with 'M': {0}",
                Array.Exists(planets, element => element.StartsWith("M")));

            Console.WriteLine("One or more planets begin with 'T': {0}",
                Array.Exists(planets, element => element.StartsWith("T")));

            Console.WriteLine("Is Pluto one of the planets? {0}",
                Array.Exists(planets, element => element == "Pluto"));
        }
    }
}
// The example displays the following output:
//       One or more planets begin with 'M': True
//       One or more planets begin with 'T': False
//       Is Pluto one of the planets? False

Example 3: check if that inex exisits array c#

var array=new List<int>(1,2,3);
int count=5;
for(int i=0;i<count;i++){
	if(array.Count>i){  //this is way you can check wheater 
      	//do something   //index count equals to array count
	}
}