Update panel strano errore

[mexican]

Pagina aspx

    <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>



<div id="content">
	
    <asp:UpdatePanel ID="UpdatePnl" runat="server" UpdateMode="Conditional">
    <ContentTemplate>
    
        <div class="box560 lh15 margin_left10 text_grey11">
        <asp:Panel ID="PnlFattura" runat="server" Visible="true">
                <div class="box560 margin_left10 text_green15">
                    Dati Fatturazione
                </div> 
            <asp:Panel ID="pnlutente" runat="server" Visible="false">                   
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">Nome
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazione" ControlToValidate="nome"></asp:RequiredFieldValidator></div>
                    <div class="box270 floatleft text_grey12 h25 lh25">Cognome
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazione" ControlToValidate="cognome"></asp:RequiredFieldValidator></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="nome" runat="server" CssClass="input" ValidationGroup="registrazione"></asp:TextBox></div>
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="cognome" runat="server" CssClass="input" ValidationGroup="registrazione"></asp:TextBox></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">Codice Fiscale
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator10" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazione" ControlToValidate="codice_fiscale"></asp:RequiredFieldValidator></div>
                    <div class="box270 floatleft text_grey12 h25 lh25"></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="codice_fiscale" runat="server" CssClass="input" ValidationGroup="registrazione"></asp:TextBox></div>
                    <div class="box270 floatleft text_grey12 h25 lh25"></div>
                </div>
            </asp:Panel>
            <asp:Panel ID="pnlazienda" runat="server" Visible="false">
            <div class="box560 margin_left10">
                
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="ragione_sociale" runat="server" CssClass="input" ValidationGroup="registrazione"></asp:TextBox></div>
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="partita_iva" runat="server" CssClass="input" ValidationGroup="registrazione"></asp:TextBox></div>
            </div>
            </asp:Panel>
          
            

            <div class="box560 margin_left10 lh25 errore floatleft txtcenter">
                
            </div>
            <div class="box560 margin_left10 ">
        	    <div class="floatleft text_grey12 h25 lh25 txtcenter">
                    <asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="~/images/btn_conferma_dati.png" ImageAlign="Middle" ValidationGroup="registrazione" OnClick="ImageButton1_Click" />
                    <asp:ImageButton ID="ImageButton2" runat="server" ImageUrl="~/images/btn_cambia_dati.png" ImageAlign="Middle" OnClick="ImageButton2_Click" />
                    <asp:ImageButton ID="ImageButton3" runat="server" ImageUrl="~/images/btn_torna_dati.png" Visible="False" ImageAlign="Middle" OnClick="ImageButton3_Click" />
                </div>
            </div>
            </asp:Panel>
        </div>
        
        
        
        <div class="box560 lh15 margin_left10 text_grey11">
        <asp:Panel ID="PnlSpedizioni" runat="server" Visible="true">
                <div class="box560 margin_left10 text_green15">
                    Dati Spedizione
                </div> 
            <asp:Panel ID="pnlutentex" runat="server" Visible="false">  
                 
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">Nome
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator3x" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="nomex"></asp:RequiredFieldValidator></div>
                    <div class="box270 floatleft text_grey12 h25 lh25">Cognome
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator4x" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="cognomex"></asp:RequiredFieldValidator></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="nomex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="cognomex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">Codice Fiscale
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator10x" runat="server" CssClass="errore"
                            ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="codice_fiscalex"></asp:RequiredFieldValidator></div>
                    <div class="box270 floatleft text_grey12 h25 lh25"></div>
                </div>
                <div class="box560 margin_left10">
                    <div class="box270 floatleft text_grey12 h25 lh25">
                        <asp:TextBox ID="codice_fiscalex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                    <div class="box270 floatleft text_grey12 h25 lh25"></div>
                </div>
            </asp:Panel>
            <asp:Panel ID="pnlaziendax" runat="server" Visible="false">
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">Ragione Sociale
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator5x" runat="server" CssClass="errore"
                        Enabled="False" ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="ragione_socialex"></asp:RequiredFieldValidator></div>
                <div class="box270 floatleft text_grey12 h25 lh25">P. iva
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator6x" runat="server" CssClass="errore"
                        Enabled="False" ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="partita_ivax"></asp:RequiredFieldValidator></div>
            </div>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="ragione_socialex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="partita_ivax" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
            </div>
            </asp:Panel>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">Nazione
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator7x" runat="server" CssClass="errore"
                        ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="nazionex"></asp:RequiredFieldValidator></div>
                <div class="box270 floatleft text_grey12 h25 lh25">Regione</div>
            </div>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="nazionex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="regionex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
            </div>
            
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">Provincia</div>
                <div class="box270 floatleft text_grey12 h25 lh25">Comune</div>
            </div>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="provinciax" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                <div class="box270 floatleft text_grey12 h25 lh25">
                    <asp:TextBox ID="comunex" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
            </div>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25">Indirizzo <asp:RequiredFieldValidator ID="RequiredFieldValidator11x" runat="server" CssClass="errore"
                        ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="indirizzo"></asp:RequiredFieldValidator></div>
                <div class="box270 floatleft text_grey12 h25 lh25">Cap <asp:RequiredFieldValidator ID="RequiredFieldValidator12x" runat="server" CssClass="errore"
                        ErrorMessage="#" ValidationGroup="registrazionex" ControlToValidate="cap"></asp:RequiredFieldValidator></div>            
            </div>
            <div class="box560 margin_left10">
                <div class="box270 floatleft text_grey12 h25 lh25"><asp:TextBox ID="indirizzox" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
                <div class="box270 floatleft text_grey12 h25 lh25"><asp:TextBox ID="capx" runat="server" CssClass="input" ValidationGroup="registrazionex"></asp:TextBox></div>
            </div>        
            
            <div class="box560 margin_left10 lh25 errore floatleft txtcenter">
                
            </div>
            <div class="box560 margin_left10 ">
        	    <div class="floatleft text_grey12 h25 lh25 txtcenter">
                    <asp:ImageButton ID="ImageButton4" runat="server" ImageUrl="~/images/btn_conferma_dati.png" ImageAlign="Middle" ValidationGroup="registrazionex" OnClick="ImageButton4_Click" />
                    <asp:ImageButton ID="ImageButton5" runat="server" ImageUrl="~/images/btn_cambia_dati.png" ImageAlign="Middle" OnClick="ImageButton5_Click" />
                    <asp:ImageButton ID="ImageButton6" runat="server" ImageUrl="~/images/btn_torna_dati.png" Visible="False" ImageAlign="Middle" OnClick="ImageButton6_Click" /></div>
            </div>
            </asp:Panel>
        </div>        
        
    </ContentTemplate>
        <Triggers>
            <asp:AsyncPostBackTrigger ControlID="ImageButton2" EventName="Click" />
            <asp:AsyncPostBackTrigger ControlID="ImageButton3" EventName="Click" />
            <asp:AsyncPostBackTrigger ControlID="ImageButton5" EventName="Click" />
            <asp:AsyncPostBackTrigger ControlID="ImageButton6" EventName="Click" />
        </Triggers>
    </asp:UpdatePanel>
    <div class="box560 h25 lh25 errore">
    	<asp:Label ID="messaggio" runat="server" CssClass="errore"></asp:Label>
    </div>