what is the difference between using exists over contains

1.       Exists is not the linq standard; Exist is there from 2.0;

2.       Just as IndexOf, Contains search strings. It checks if one of the substring is contained in another.

3.       Exists returns whether any of the List elements found. You can use a loop and if-statement also;

4.       The difference is only  Contains support by Linq parametrs to Entities, Exists does not supported

5.       How to use Exists in c#

class Program

    {

        static void Main(string[] args)

        {

            List<int> list = new List<int> { 1, 2, 3, 4 };

            // See if any elements equal to 3

            bool exists = list.Exists(element => element == 3); // True

            Console.WriteLine(exists);

            // Check for numbers eqal to 5

            exists = list.Exists(element => element == 5); // False

            Console.WriteLine(exists);

        }

    }

6.       How to Use Contain in c#

class Program

    {

        static void Main(string[] args)

        {

            string s1 = "Check for the contains method in C#";

            string s2 = "contains"; // Contains is case sensetive

            bool bln;

            bln = s1.Contains(s2);

            Console.WriteLine("string, s2, in string, s1?: {0}", bln); //bln =true

        }

    }