C# String Contains

Description

String Contains returns a value indicating whether a specified substring occurs within this string.

Syntax

String.Contains has the following syntax.

public bool Contains(
  string value
)

Parameters

String.Contains has the following parameters.

• value - The string to seek.

Returns

String.Contains method returns true if the value parameter occurs within this string, or if value is the empty string (""); otherwise, false.

Example

The following example determines whether the string "fox" is a substring of a familiar quotation.

//from   w  w  w. ja va2  s  .  c  om
// This example demonstrates the String.Contains() method 
using System;

class Sample 
{
    public static void Main() 
    {
        string s1 = "The quick brown fox jumps over the lazy dog";
        string s2 = "fox";
        bool b;
        b = s1.Contains(s2);
        Console.WriteLine("Is the string, s2, in the string, s1?: {0}", b);
    }
}

The code above generates the following result.