Bind Nested Gridview after insert

[Hennie]

How can refresh the data of a Nested Gridview (Gridview within a gridview).

I use the following script in the code behind file
Protected Sub GVChildUpdate_Click(ByVal sender As Object, ByVal e As
System.EventArgs)

GVChild.DataBind()

End Sub

I get the following error:

Error 1 Name 'GVChild' is not declared.

Why can it not find the gridview?

Thanks