Is there a GUID.TryParse() in .NET 3.5?

Question

UPDATE

Guid.TryParse is available in .NET 4.0

END UPDATE

Obviously there is no public GUID.TryParse() in .NET CLR

Answer 1

This implementation of a TryParse for Guids uses a try-catch in order to catch missformed Guids. It is implemented as extension method und must be placed in a static class:

public static bool TryParseGuid(this string s, out Guid guid)
{
    try {
        guid = new Guid(s);
        return true;
    } catch {
        guid = Guid.Empty;
        return false;
    }
}

It can be called with

string s = "{CA761232-ED42-11CE-BACD-00AA0057B223}";
Guid id;
if (s.TryParseGuid(out id) {
    // TODO: use id
} else {
    // Sorry not a valid Guid.
}

---

Starting with C# 7.0 / Visual Studio 2017, you can call it with:

string s = "{CA761232-ED42-11CE-BACD-00AA0057B223}";
if (s.TryParseGuid(out Guid id) {
    // TODO: use id
} else {
    // Sorry not a valid Guid.
}

---

UPDATE

Since Visual Studio 2010 / .NET Framework 4.0, System.Guid provides a TryParse and a TryPareExact method.