Hi,
How do I add a row in a gridpanel:
I would like to add a row like in the tutorial "Update / SqlDataSource" but I'm not the blank row appears ready to be filled at the beginning of gridpanel
This is the code of the page, I can not find the error, please can anyone help me?


  <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %><%@ Register assembly="Ext.Net" namespace="Ext.Net" tagprefix="ext" %>


<!DOCTYPE html>


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>BBG Lista Codici</title>
</head>
<body>
  <ext:ResourceManager runat="server" Locale="it"></ext:ResourceManager>
  <asp:ObjectDataSource ID="ObjectDataSourceKita" SelectMethod="GetKitamura" UpdateMethod="UpdateKitamura" InsertMethod="InsertKitamura" runat="server" TypeName="KitamuraBLL">
     <UpdateParameters>
         <asp:Parameter Name="quantita" Type="Double" />
         <asp:Parameter Name="descrizione" Type="String" />
         <asp:Parameter Name="dataConsegna" Type="DateTime" />
         <asp:Parameter Name="numeroOrdine" Type="String" />
         <asp:Parameter Name="CodiceArticolo" Type="String" />
     </UpdateParameters>


     <InsertParameters>
         <asp:Parameter Name="codiceArticolo" Type="String" />
         <asp:Parameter Name="quantita" Type="Double" />
         <asp:Parameter Name="descrizione" Type="String" />
         <asp:Parameter Name="dataConsegna" Type="DateTime" />
         <asp:Parameter Name="numeroOrdine" Type="String" />
         <asp:Parameter Direction="Output" Name="newId" Type="Int32" />
     </InsertParameters>


  </asp:ObjectDataSource> 


   <ext:Viewport ID="ViewportDefault" runat="server" Layout="border">
         <Items>


             <%--WEST PANEL--%>
             <ext:Panel ID="PanelWest" 
                runat="server" 
                Region="West"
                Layout="accordion"
                Width="225" 
                MinWidth="225" 
                MaxWidth="400" 
                Split="true" 
                Collapsible="true">
                      <Items>


                           <ext:Panel ID="Panel1" 
                                runat="server" 
                                Title="Navigation" 
                                Border="false" 
                                Padding="6"
                                Icon="FolderGo"
                                Html="West"
                                />


                            <ext:Panel ID="Panel2" 
                                runat="server" 
                                Title="Settings" 
                                Border="false" 
                                Padding="6"
                                Icon="FolderWrench"
                                Html="Some settings in here"
                                />


                      </Items>
             </ext:Panel>
             <%-- FINE WEST PANEL--%>


             <%--CENTER PANEL--%>


              <ext:TabPanel ID="TabPanelCentro" 
                    Layout="FitLayout"
                    runat="server" 
                    Region="Center"
                    ActiveTabIndex="0">


                    <Items>


                        <%--TAB KITAMURA--%>
                        <ext:Panel 
                            ID="TabArticoliKitamura" 
                            runat="server" 
                            Title="Articoli Kitamura" 
                            BodyPadding="6" >


                            <Items>
                                  <ext:GridPanel ID="GridPanelKitamura" 
                                    runat="server" 
                                    Title="Kitamura"
                                    Margins="0 0 5 5"
                                    Icon="Compass"
                                    Region="Center" 
                                    Height="400"
                                    Frame="true">
                                      <TopBar>
                                          <ext:Toolbar runat="server">
                                              <Items>
                                                   <ext:Button ID="btnSave" runat="server"  Text="Aggiorna Modifiche" Icon="DatabaseEdit">
                                                        <Listeners>
                                                            <Click Handler="#{StoreKita}.sync();" />
                                                        </Listeners>
                                                    </ext:Button>
                                                  <ext:Button ID="btnInsert" runat="server" Text="Inserisci Nuovo Articolo" Icon="DatabaseGear">
                                                      <Listeners>
                                                            <Click Handler="#{StoreKita}.insert(0, new Kitamura());#{GridPanelKitamura}.editingPlugin.startEditByPosition({row:0, column:0});" />
                                                      </Listeners>
                                                  </ext:Button>
                                              </Items>
                                          </ext:Toolbar>
                                      </TopBar>
                                    <Store>
                                        <ext:Store ID="StoreKita" runat="server" DataSourceID="ObjectDataSourceKita">
                                            <Model>
                                                 <ext:Model ID="ModelKita" runat="server" IDProperty="CodiceArticolo" >
                                                     <Fields>
                                                         <ext:ModelField Name="Quantita"  Type="Int" ServerMapping="Quantita"/>
                                                         <ext:ModelField Name="Descrizione" Type="String" ServerMapping="Descrizione" />
                                                         <ext:ModelField Name="DataConsegna" Type="Date" ServerMapping="DataConsegna" />
                                                         <ext:ModelField Name="NumeroOrdine" Type="String" ServerMapping="NumeroOrdine" />
                                                     </Fields>
                                                 </ext:Model>
                                            </Model>


                                        </ext:Store>
                                    </Store>


                                    <SelectionModel>
                                        <ext:RowSelectionModel ID="RowSelectionModelKita" runat="server" Mode="Multi" />
                                    </SelectionModel>
                                    <Plugins>
                                        <ext:RowEditing ID="RowEditingKita" runat="server" ClicksToMoveEditor="1" AutoCancel="false" />
                                    </Plugins>
                                    <Plugins>
                                        <ext:CellEditing ID="CellEditingKita" runat="server" />
                                    </Plugins>


                                  <ColumnModel ID="ColumnModelKitamura" runat="server">
                                        <Columns>
                                            <ext:Column ID="ColumnCodiceArticolo" runat="server" DataIndex="CodiceArticolo" Text="Codice Articolo" Width="150">
                                                <Editor>
                                                    <ext:TextField ID="TextFieldCodArticolo" runat="server" AllowBlank="false" Width="150" />
                                                </Editor>
                                            </ext:Column>
                                            <ext:Column ID="ColumnQuantita" runat="server" DataIndex="Quantita" Text="Quantita" Width="150">
                                                 <Editor>
                                                      <ext:TextField ID="TextFieldQuantita" runat="server" AllowBlank="false" Width="150" />
                                                 </Editor>
                                            </ext:Column>
                                            <ext:Column ID="ColumnDescrizione" runat="server" DataIndex="Descrizione" Text="Descrizione" Flex="1">
                                                <Editor>
                                                    <ext:TextField ID="TextFieldDescrizione" runat="server" AllowBlank="true" Flex="1" />
                                                </Editor>
                                            </ext:Column>
                                            <ext:DateColumn runat="server" Sortable="true"   ID="ColumnDataConsegna"  Width="150"  DataIndex="DataConsegna" Text="Data Consegna" Format="dd-MM-yyyy">
                                                <Editor>
                                                    <ext:DateField ID="DateFieldConsegna" runat="server" Format="dd-MM-yyyy" AllowBlank="true"></ext:DateField>
                                                </Editor>
                                            </ext:DateColumn>
                                            <ext:Column ID="ColumnNumeroOrdine" runat="server" DataIndex="NumeroOrdine" Text="Numero Ordine" Width="150" >
                                                <Editor>
                                                    <ext:TextField ID="TextFieldNumOrd" runat="server" AllowBlank="false" Width="150" />
                                                </Editor>
                                            </ext:Column>
                                        </Columns>
                                  </ColumnModel>


                                  <Features>
                                      <ext:GridFilters ID="GridFiltersKitamura" runat="server" Local="true">
                                          <Filters>
                                                <ext:DateFilter DataIndex="Data Consegna">
                                                    <DatePickerOptions runat="server" TodayText="Oggi" />
                                                </ext:DateFilter>
                                                <ext:StringFilter DataIndex="Codice Articolo" />
                                          </Filters>
                                      </ext:GridFilters>
                                  </Features>


                              </ext:GridPanel>


                            </Items>
                        </ext:Panel>
                        <%-- FINE TAB KITAMURA--%>


                            
                        <%--TAB PEAR--%>
                        <ext:Panel 
                            ID="TabArticoliPear" 
                            runat="server" 
                            Title="Articoli Pear" 
                            BodyPadding="6">
                        </ext:Panel>
                        <%-- FINE TAB PEAR--%>


                    </Items>
            </ext:TabPanel>




             <%-- FINE CENTER PANEL--%>




         </Items>
   </ext:Viewport>


</body>
</html>

Thanks a lot
Fabrizio