Reorder Items in sql database

Instead of trying to manually insert numbers between existing numbers, which will eventually require renumbering (even if you were to use decimals, you'd eventually run out of numbers), why not implement the list in a simple Collection?
This would still require that you are able to identify the next (or previous) sibling when you're about to insert the new sibling
For example:
Private colSiblings As New Collection
Then you can insert a new sibling relative to its adjacent sibling, for example:
colSiblings.Add(argNewSibling,  , argBeforeSibling, )
or
colSiblings.Add(argNewSibling,  ,  , argAfterSibling)

Sounds like a great idea, I like it.  Would I somehow do that in the ItemInserting section??  

Yes,
argNewSibling would be an object (or a number, or a string, ...) representing the new sibling; and argBeforeSibling (or argAfterSibling) would be the desired neighbour for the new sibling. Remember, if you've inserted the items as numbers, then you need to refer to numbers when you compare (and likewise, if you inserted strings, you need to compare against strings).
I hope that makes sense.

coming along nicely, but what is the syntax to pass more than one value from the gridview to the detailsview??  I have two parameters (in the datakey names) in the gridview BA_ID, BA_DispOrder.  I need the BA_ID to pass to my next gridview and since it is my primary I have no problem using it, but I need the BA_DispOrder to know my selection from the gridview, after I get this last part I will be finished with this.  This is what I am trying to use in my Insert Parameters section:
<asp:ControlParameter ControlID="GridView2" Name="BA_DispOrder" PropertyName="SelectedValue"
                                                Type="Int32" />
I need it as my value, this works for the first parameter in a list, but I guess not for the secondary one??
Thanks,
Randy

I know in the code behind I would get it like this:

        Dim NewOrder As String = (GridView2.SelectedDataKey.Values("BA_DispOrder").ToString())

so, I could run an update on this in the code behind, after I do my insert, but I would rather do it on the insert from the detailsview...

Thank you for the excellent help!!!