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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;

}

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