Requests a number from the user and tries to convert it to the int type. If the conversion failed, the user is asked for the number again until it is entered correctly. After the input that was converted to a number, the number is returned.

Read int (Try parse practice)

internal class Program
{
    static void Main(string[] args)
    {
        int number;
        number = GetNumber();
        Console.WriteLine(number);
    }
    
    static int GetNumber()
    {
        int parsedNumber;

        while (int.TryParse(Console.ReadLine(), out parsedNumber) == false)
        {            
            Console.WriteLine("Try again!");
        }

        return parsedNumber;
    }
}