C# String IndexOf(String, Int32, Int32)

Description

String IndexOf(String, Int32, Int32) reports the zero-based index of the first occurrence of the specified string in this instance. The search starts at a specified character position and examines a specified number of character positions.

Syntax

String.IndexOf(String, Int32, Int32) has the following syntax.

public int IndexOf(
  string value,/*  www . j  a  va 2  s .c  om*/
  int startIndex,
  int count
)

Parameters

String.IndexOf(String, Int32, Int32) has the following parameters.

• value - The string to seek.
• startIndex - The search starting position.
• count - The number of character positions to examine.

Returns

String.IndexOf(String, Int32, Int32) method returns The zero-based index position of value if that string is found, or -1 if it is not. If value is String.Empty, the return value is startIndex.

Example

Sample for String.IndexOf(String, Int32, Int32)

using System;/*from w w  w  .j a v a 2  s.  co  m*/

public class Example
{
   public static void Main()
   {
      string searchString = "\u00ADm";
      string s1 = "ani\u00ADmal" ;
      string s2 = "animal";

      Console.WriteLine(s1.IndexOf(searchString, 2, 4));
      Console.WriteLine(s2.IndexOf(searchString, 2, 4));
   }
}

The code above generates the following result.