Hello,

PageIndexChanging not working for nested gridview. The code I attached here, collapse back once click the numbering. Please advice.

Protected Sub OnChildGrid_PageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs)

    System.Threading.Thread.Sleep(2000)

    Dim gvChildGrid As System.Web.UI.WebControls.GridView = DirectCast(sender, System.Web.UI.WebControls.GridView)

    Dim gvRowParent As GridViewRow = TryCast(DirectCast(sender, System.Web.UI.WebControls.GridView).Parent.Parent, GridViewRow)

    gvChildGrid.PageIndex = e.NewPageIndex

    gvChildGrid.DataBind()

End Sub