hexadecimal string to an integer using Convert.ToInt32() in C#

C# convert a decimal, octal or hexadecimal string to an integer: Here, we will figure out how to change over given decimal, octal or hexadecimal string to its identical integer number by utilizing Convert.ToInt32() work in C#? Convert.ToInt32() Method Convert.ToInt32() is a predefined strategy in C#, which restores an integer value (in 32 bits) from given different kinds of values. Here, we will go with a portion of the change… Syntax: Convert.ToInt32(input, base); Here, input is the information string that may contain variable arrangement's value like decimal/number value, octal value or hexadecimal value. the base is the number framework base like, 10 for decimal (which we don't have to compose while calling the capacity), 8 for octal and 16 for the hexadecimal value. Code: using System; using System.Text; namespace Test { class Program { static void Main(string[] args) { string input = ""; int num = 0; try { input = "12345"; //value is a decimal formatted number num = Convert.ToInt32(input); //base is an optional if string contains decimal value Console.WriteLine("num (decimal string to integer) :" + num); //we can also provide the base of the input - it is decimal value //so, 10 can be used as base num = Convert.ToInt32(input, 10); Console.WriteLine("num (decimal string to integer) :" + num); //convert octal string to integer input = "30071"; num = Convert.ToInt32(input, 8); Console.WriteLine("num (octal string to integer) :" + num); //convert hex string to integer input = "3039ACFE"; num = Convert.ToInt32(input, 16); Console.WriteLine("num (hex string to integer) :" + num); } catch (Exception ex) { Console.WriteLine(ex.ToString()); } //hit ENTER to exit Console.ReadLine(); } } } Output num (decimal string to integer) :12345 num (decimal string to integer) :12345 num (octal string to integer) :12345 num (hex string to integer) :809086206