ASP.NET - Add paging

set AllowPaging="True"

and implement the following procedure

    Private Sub gvReport_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles gvReport.PageIndexChanging
        gvReport.PageIndex = e.NewPageIndex
        gvReport.DataSource = ds.Tables("TableName").DefaultView
        gvReport.DataBind()
    End Sub