How to validate GUID string in C# .Net?

There are different types of mechanisms to validate GUID in C# .Net. I am going to share a quite simple code example as given below.

/// <summary>

/// VALIDATE EXPRESSION IS GUID OR NOT!

/// </summary>

public static bool IsGuid(string guidString)

{

    bool IsGuid = false;

    if (!string.IsNullOrEmpty(guidString))

    {

        Regex guidRegExp = 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})$");

        IsGuid = guidRegExp.IsMatch(guidString);

    }

    return IsGuid;

}