Question

I’m testing out some WCF services that send objects with Guids back and forth. In my web app test code, I’m doing the following:

var responseObject = proxy.CallService(new RequestObject
{
    Data = "misc. data",
    Guid = new Guid()
});

For some reason, the call to new Guid() is generating Guids with all 0’s (zeros) like this:

00000000-0000-0000-0000-000000000000

What could be causing this?

Answer 1

Use the static method Guid.NewGuid() instead of calling the default constructor.

var responseObject = proxy.CallService(new RequestObject
{
    Data = "misc. data",
    Guid = Guid.NewGuid()
});