C# Char IsDigit(String, Int32)

Description

Char IsDigit(String, Int32) indicates whether the character at the specified position in a specified string is categorized as a decimal digit.

Syntax

Char.IsDigit(String, Int32) has the following syntax.

public static bool IsDigit(
  string s,
  int index
)

Parameters

Char.IsDigit(String, Int32) has the following parameters.

• s - A string.
• index - The position of the character to evaluate in s.

Returns

Char.IsDigit(String, Int32) method returns true if the character at position index in s is a decimal digit; otherwise, false.

Example

The following code example demonstrates IsDigit.

/*w  w w  .j av a  2 s  . c  o  m*/
using System;

public class MainClass {
  public static void Main() {
    char ch = '8';

    Console.WriteLine(Char.IsDigit("sample string", 7));  // Output: "False"
  }
}

The code above generates the following result.