I want only Integer Input...!

Question

hi em new in Csharp Language...!

i want take only Integer input or you can say any number...!

if user enter any character then it takes input again until they enter correct number....!

my code is:

int mynum;
String number;

Console.WriteLine("Please Enter the roll number");

number = Console.ReadLine();// this is used for take input as a string

mynum = int.Parse(number); // this is used for to convert String nto integer.

// i dont konow what is the next step for take only integer input