using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
public static class UtilityExtension
{
public static readonly Regex guidRegEx = new Regex(@"^(\{{0,1}([0-9a-fA-F]){8}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){12}\}{0,1})$");
public static bool IsGuid(this string expression)
{
if (!String.IsNullOrEmpty(expression))
{
return guidRegEx.IsMatch(expression);
}
return false;
}
}