Hello, I have a question, the problem is on line 45, this works perfectly, but the problem is when I want to get record on another page that is not the number 1


<ext:Column ID="clmDiaNumero" runat="server" Text="Día" DataIndex="DiaNumero" Width="60" Wrap="True">
                                    <Editor>
                                        <ext:DropDownField LabelWidth="120"
                                            ID="_ddfCprDia"
                                            runat="server" Mode="ValueText"
                                            Editable="false">
                                            <Component>
                                                <sdc:grpGridPanelBase ID="_grpCprDia" runat="server" Flex="1" Height="250">
                                                    <Store>
                                                        <ext:Store
                                                            ID="_stoCprDia"
                                                            runat="server"
                                                            RemoteSort="true"
                                                            PageSize="20"
                                                            AutoLoad="false">
                                                            <Proxy>
                                                                <ext:PageProxy DirectFn="#{DirectMethods}.cprcs_Listado_Dias_BindData" />
                                                            </Proxy>
                                                            <Model>
                                                                <ext:Model ID="_mdlCprDia" runat="server" IDProperty="Id" Name="_mdlCprDia">
                                                                    <Fields>
                                                                        <ext:ModelField Name="Id" Type="Int" />
                                                                        <ext:ModelField Name="Numero" Type="Int" />
                                                                        <ext:ModelField Name="Fecha" Type="Date" />
                                                                        <ext:ModelField Name="DiaString" />
                                                                    </Fields>
                                                                </ext:Model>
                                                            </Model>
                                                            <Sorters>
                                                                <ext:DataSorter Property="Numero" Direction="ASC" />
                                                            </Sorters>
                                                            <Parameters>
                                                                <ext:StoreParameter Name="moduloid" Encode="true" Mode="Raw" Value="MainScript.GetSelectedNodeID(#{_trpModulos}, 'id')" />
                                                                <ext:StoreParameter Name="cprid" Mode="Raw" Encode="true" Value="#{grpBusquedaResultadosCasoPrueba}.getRowEditor().getActiveRecord().data.Id"></ext:StoreParameter>
                                                            </Parameters>
                                                        </ext:Store>
                                                    </Store>
                                                    <ColumnModel ID="_clmdCprDia" runat="server">
                                                        <Columns>
                                                            <ext:Column ID="clmnCprDiaNumero" runat="server" Text="# Dia" DataIndex="Numero" Width="60" />
                                                            <ext:Column ID="clmnCprDiaFecha" runat="server" Text="Fecha" DataIndex="DiaString" Flex="1" />
                                                        </Columns>
                                                    </ColumnModel>
                                                    <Listeners>                                                                                                                
                                                   <CellClick Handler="DiaPruebaSelect(record);"></CellClick>
                                                    </Listeners>
                                                    <BottomBar>
                                                        <ext:PagingToolbar ID="_pgtCprDia"
                                                            runat="server"
                                                            DisplayInfo="true"
                                                            DisplayMsg="Días {0} - {1} of {2}"
                                                            EmptyMsg="No hay días registrados">
                                                        </ext:PagingToolbar>
                                                    </BottomBar>
                                                    <SelectionModel>
                                                        <ext:RowSelectionModel Mode="Single" ID="_rsmCprDia">
                                                        </ext:RowSelectionModel>
                                                    </SelectionModel>
                                                </sdc:grpGridPanelBase>

                                            </Component>
                                            <Listeners>
                                                <Expand Handler="this.picker.setWidth(400); if (this.reload){  #{_rsmCprDia}.deselectAll(true); #{_stoCprDia}.removeAll(); #{_stoCprDia}.loadPage(1); this.reload=false; } " Delay="5" />
                                                <TriggerClick Handler="this.clearValue();" />
                                            </Listeners>
                                            <CustomConfig>
                                                <ext:ConfigItem Name="reload" Value="true" Mode="Raw" />
                                            </CustomConfig>
                                        </ext:DropDownField>
                                    </Editor>
                                </ext:Column>