Prime Number Series up to a Number in C#

This is simple program to print the prime numbers upto a number using C# code. The beginners can use this code to submit their lab assignments. The logic is very simple check every number if it is not divisible any number excluding 1 and self then it is prime number.

 

Code to Prime Number Series up to a Number in C#:

using System;
using System.Text;
using System.Collections;
using System.Data;
namespace Console_App
{
    public class clsFactorial
    {
        public static void Main()
        {
            try
            {   int TmpNumber = 1, j, c;
                Console.WriteLine("Enter a number to calculate Prime Numbers:");
                int Number = Convert.ToInt16(Console.ReadLine());
                while (TmpNumber <= Number)
                {
                    c = 0;
                    for (j = 1; j <= TmpNumber; j++)
                    {
                        if (TmpNumber % j == 0)
                            c++;
                    }
                    if (c == 2)
                        Console.WriteLine(TmpNumber);
                    TmpNumber++;
                }              
            }
            catch (Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();           
        }
    }
}