Dev的ASPxGridView控件问题

 今天用dev的gv控件，自带分页样式感觉不满足要求，自己改了模版，可以无奈不知道怎么去给里面的分页设置ItemsPerPage="10" ItemCount="23"除了写死，找不到个好地方，绑定时设置一直findcontrol报null无奈啊：

<dx:ASPxGridView ID="dxGVTerminalFaults" SkinID="gridviewSkin" runat="server">
    <Templates>
        <PagerBar>
        <div class="clear_float">
            <dx:ASPxLabel ID="lblCustomArea" runat="server" CssClass="left_float num_total" Visible="true" Text="6 faults" />
            <div class="nav_pager right_float">
                <dx:ASPxPager ID="ASPxPager1" runat="server" ItemsPerPage="10" ItemCount="23">
                    <Summary  Text="Page {0} of {1}" />
                </dx:ASPxPager>
            </div>
        </div>
        </PagerBar>
    </Templates>
    <Columns>
        <dx:GridViewDataTextColumn Caption="Terminal ID" FieldName="TermId">
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataTextColumn Caption="Fault" FieldName="Fault_Description">
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataTextColumn Width="120" CellStyle-HorizontalAlign="Center" Caption="Started At" FieldName="Recording_Time">
            <DataItemTemplate><%# DataBinder.Eval(Container.DataItem,"Recording_Time","{0:dd\\/MM\\/yyyy HH:mm:ss}") %></DataItemTemplate>
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataTextColumn Width="120" CellStyle-HorizontalAlign="Center" Caption="Ended At" FieldName="Fault_Time">
            <DataItemTemplate><%# DataBinder.Eval(Container.DataItem, "Fault_Time", "{0:dd\\/MM\\/yyyy HH:mm:ss}")%></DataItemTemplate>
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataTextColumn Width="120" Caption="Duration(Minutes)" FieldName="Duration">
        </dx:GridViewDataTextColumn>
    </Columns>
</dx:ASPxGridView>

截图：

 

希望熟悉此东东的达人相助：-）