[CLOSED] Hidden="true" behaves as Visible="false"

[marco.morreale]

I'm trying to hide a ComoboBox when it has just one record.

I need the form layout is mantained; so I expect the control leaves white space at his place.
But the control disappears freeing space and other controls moves.

This is "Visible= false" behavioor not "hidden=true"

My ComboBox is inside a FieldContainer with Layout="HBoxLayout"

Here is my Combo. Please note in Store Listener.

M

<ext:ComboBox ID="cbCilindro" runat="server" Editable="false" ForceSelection="true" ValueField="Code"  DisplayField="Cilindro"  Flex="1"
                        Note="Cilindro" NoteAlign="Top" SelectOnFocus="true" Margins="0 8 0 0" >
                        <ListConfig>
                            <ResizableConfig runat="server" Handles="South" />
                        </ListConfig>
                        <Store>
            <ext:Store ID="stCilindro" runat="server" PageSize="10">
                <Proxy>
                    <ext:AjaxProxy Json="true" Url="../WebServices/AjaxWebService.asmx/getCilindroProdotto">
                        <ActionMethods Read="POST" />                            
                        <Reader>
                            <ext:JsonReader Root="d.Data" TotalProperty="d.Total" />
                        </Reader>
                    </ext:AjaxProxy>
                </Proxy>
                <Parameters>                    
                    <ext:StoreParameter Name="basketID" Value='<%# Request.QueryString["Id"] %>' AutoDataBind="true" />
                    <ext:StoreParameter Name="gruppoMerc" Value="#{cbFamiglieProdotto}.getValue()" Mode="Raw"  />
                    <ext:StoreParameter Name="confezione" Value="#{cbConfezioniProdotto}.getValue()" Mode="Raw" />
                    <ext:StoreParameter Name="campione" Value="false" Mode="Value" />
                </Parameters>
                <Model>
                    <ext:Model runat="server">
                        <Fields>
                            <ext:ModelField Name="Code" />
                            <ext:ModelField Name="Cilindro" />
                        </Fields>
                    </ext:Model>
                </Model>
                <Listeners>
                    <Load Handler="if (records.length==1) { #{cbCilindro}.hide(); }" />
                </Listeners>
                <%--<Sorters>
                    <ext:DataSorter Property="Cilindro" Direction="ASC" />
                </Sorters>--%>
            </ext:Store>            
        </Store>         
                        <Listeners>
                    <Select Handler="#{cbAsse}.clearValue();#{stAsse}.load();" />
                </Listeners>                
                    </ext:ComboBox>