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omegapro/Omega/Classes/clsCommon.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Security.Cryptography;
+namespace Omega
+{
+    internal static class   common
+    {
+        public static DateTime testdate { get; set; }
+        public static DateTime visitdate { get; set; }
+
+        public static DateTime MaxDate(DateTime a, DateTime b)
+        {
+            return a > b ? a : b;
+        }
+
+        public static DateTime MinDate(DateTime a, DateTime b)
+        {
+            return a > b ? b : a;
+        }
+
+        public static string MD5Hash(string text)
+        {
+            MD5 md5 = new MD5CryptoServiceProvider();
+
+            //compute hash from the bytes of text
+            md5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(text));
+
+            //get hash result after compute it
+            byte[] result = md5.Hash;
+
+            StringBuilder strBuilder = new StringBuilder();
+            for (int i = 0; i < result.Length; i++)
+            {
+                //change it into 2 hexadecimal digits
+                //for each byte
+                strBuilder.Append(result[i].ToString("x2"));
+            }
+
+            return strBuilder.ToString();
+        }
+    }
+}