what is the reasoning for needing it on the next page?
What I would do is do the actions in the button_click event on the first page, then stuff whatever you need to carry over into session variables that could be picked up by what ever page you redirected to at the end of your click event.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
'get form stuff
Dim var1 as string=textbox1.text
Session("var1")=var1
response.redirect "save.aspx"
End Sub
This is the way that I would do it.