Format Print N*M

Print N*M like following:

 

 1 /*
 2  * Created by SharpDevelop.
 3  * User: Administrator
 4  * Date: 2010-3-25
 5  * Time: 22:33
 6  * 
 7  * To change this template use Tools | Options | Coding | Edit Standard Headers.
 8  */
 9 using System;
10 
11 namespace MNPrint
12 {
13     class Program
14     {
15         public static void Main(string[] args)
16         {
17             int n = 10;
18             int m = 5;
19             MNPrint(n, m);
20             Console.ReadKey(true);
21         }
22 
23         public static void MNPrint(int n, int m)
24         {
25             if (m < 0 || n < 0)
26                 throw new ArgumentOutOfRangeException();
27 
28             try
29             {
30                 if (m * n > int.MaxValue)
31                     throw new OverflowException();
32             }
33             catch (OverflowException ex)
34             {
35                 throw ex;
36             }
37 
38             for (int i = 0; i < n; i++)
39             {
40 
41                 if (i % 2 == 0)
42                 {
43                     for (int j = 1; j <= m; j++)
44                         Print(i * m + j);
45                 }
46                 else
47                 {
48                     for (int j = 0; j < m; j++)
49                         Print((i + 1) * m - j);
50                 }
51                 Console.WriteLine();
52             }
53         }
54         public static void Print(int n)
55         {
56             Console.Write(n.ToString());
57             Console.Write(";");
58         }
59     }
60 }