Two validation groups on one page

Hello everyone, I have an issue. I have two validation groups called "test1" and "test2." Now here is my code:
Protected Sub AsyncFileUpload1_UploadedComplete(ByVal sender As Object, ByVal e As AjaxControlToolkit.AsyncFileUploadEventArgs) Handles AsyncFileUpload1.UploadedComplete Me.Page.Validate("test1") If Not Me.Page.IsValid Then Return End If If Me.Page.IsValid Then 'do something End If End Sub My idea is that I want to validate only test1. If test1 is valid, then do something. But I believe Page.IsValid also checked test2. As a result it keeps returning false. I am thinking about specifying the validation group on the Ajax Asynfileupload control to test1, but there is no validation group property for this control.
Is there a way I can get around this? 
Thanks.< ...