C# Convert ToInt32(String, Int32)

Description

Convert ToInt32(String, Int32) converts the string representation of a number in a specified base to an equivalent 32-bit signed integer.

Syntax

Convert.ToInt32(String, Int32) has the following syntax.

public static int ToInt32(
  string value,
  int fromBase
)

Parameters

Convert.ToInt32(String, Int32) has the following parameters.

• value - A string that contains the number to convert.
• fromBase - The base of the number in value, which must be 2, 8, 10, or 16.

Returns

Convert.ToInt32(String, Int32) method returns A 32-bit signed integer that is equivalent to the number in value, or 0 (zero) if value is null.

Example

//from  w  ww.j  a  v a 2s  . c om
 
using System;
public class MainClass{
   public static void Main(String[] argv){  
        long sourceNumber =123;
        bool isNegative = Math.Sign(sourceNumber) == -1;
        string value = Convert.ToString(sourceNumber, 16);
        int targetNumber = Convert.ToInt32(value, 16);
        Console.WriteLine(targetNumber);
   }
}
     

The code above generates the following result.