DataGrid, DataView, & VWD.

Okay, I'm trying this whole new .NET 2.0 thing and the beta Visual Web Developer Express. Its pretty cool. It does a lot of the coding automatically (especially the boring redundant stuff) but that doesn't mean that I still don't manage to get myself into trouble.
Now, here's my current project:
- Create a program that reads from a database a list of games and displays them on the screen. Allows any one of these to be selected and once selected upons up a fuller description of the game.
The first part - displaying a list of games and making them selectable is easy, a SqlDataConnection and DataGrid using VWD and I'm up and running in five mins. The problem arises in that I now have default.aspx that hosts the DataGrid and showgame.aspx that hosts the DataView. The idea is for the SelectedIndexChanged event to trigger a redirection from default to showgame using a querystring. However, I don't know how to get the ID from the selected row (its not one of the items I want visually displayed) and once I get it I'm not quite sure how to pass it to the DataView. If anyone can help me get the ID I think I can figure out connecting it to the DataView.
Here is my current code in the SelectedIndexChanged event (which doesn't work):
Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged
        Dim url As String
        Dim ID As GridViewRow = GridView1.ID
        url = "showgame.aspx?ID=" + ID
        Response.Redirect(url)
End Sub

David.

Thanks Mart. I'm closer than before. But I'm not getting another error. Here is the code:
Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged
        Dim url
        Dim ID As GridViewRow = GridView1.SelectedRow
        url = "showgame.aspx?ID=" + ID
        Response.Redirect(url)
End Sub
   It throws an error saying that the Operator + is not defined for types 'String' and 'System.Web.UI.WebControls.GridViewRow'.
   If I click the select button without the +ID part it goes to the new page, but without the DataView knowing which ID to go to it just ends up at the first one. :-/
David.

If you set the GridViews Key to the ID field and don't add a column for it then just use:

Dim ID As String = GridView1.Keys(GridView1.SelectedRow.Index)