using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlTypes;
public class CommonUtility
{
public static string MakeAlphaNumeric(string text)
{
StringBuilder filteredText = new StringBuilder();
StringBuilder newText = new StringBuilder(text);
for (int i = 0; i < newText.Length; i++)
{
if (char.IsLetterOrDigit(newText[i]))
filteredText = filteredText.Append(newText[i]);
}
return filteredText.ToString();
}
}