[CLOSED] Object undefined

[maurox]

Hi,
i have this

<ext:Hidden ID="idedizione" runat="server" Text="3"></ext:Hidden>
<ext:TreePanel 
            ID="TreePanel1" 
            runat="server" 
            Title="Tree" 
            Height="500"
            Width="200"
            Border="false">
            <Store>
                <ext:TreeStore runat="server">
                    <Proxy>
                        <Reader>
                                    <ext:JsonReader RootProperty="oggetti"></ext:JsonReader>
                                </Reader>
                                <ExtraParams>
                                    <ext:StoreParameter Value="#{idedizione}.getValue()" Name="idedizione" Mode="Raw" />
                                </ExtraParams>
                    </Proxy>
                </ext:TreeStore>
            </Store>
            <Root>
                <ext:Node NodeID="0" Text="Root" />
            </Root>
        </ext:TreePanel>

But #{idedizione}.getValue() return "Cannot read property 'getValue' of undefined".

I've tried to set parameter in Page_Load but no parameter was added to url...

[Daniil]

Hi @maurox,

For some reason an <ext:AjaxProxy> definition is missed in your code snippet.

I could not reproduce the error.

Maybe, the Hidden control is not created yet by the time when a TreeStore initiates the first load request. Though, it is only a guess. To say something certain, we should be able to reproduce it locally. Could you, please, provide a full test case that we could copy, paste and run without any changes from our side and reproduce the issue?

[maurox]

i'm sorry for mistake.
My treestore is:

<ext:TreeStore ID="TreeStore1" runat="server" AutoLoad="true">
                        <Proxy>
                            <ext:AjaxProxy Url="/handler/TreeHandler.ashx">
                                <Reader>
                                    <ext:JsonReader RootProperty="oggetti"></ext:JsonReader>
                                </Reader>
                            </ext:AjaxProxy>
                            <ExtraParams>
                                    <ext:StoreParameter Value="#{idedizione}.getValue()" Name="idedizione" Mode="Raw" />
                            </ExtraParams>
                        </Proxy>
                        <Model>
                            <ext:Model ID="Model1" runat="server">
                                <Fields>
                                    <ext:ModelField Name="IDEdizione"></ext:ModelField>
                                    <ext:ModelField Name="IDOpera"></ext:ModelField>
                                    <ext:ModelField Name="IDOggetto"></ext:ModelField>
                                    <ext:ModelField Name="IDFaseCorrente"></ext:ModelField>
                                    <ext:ModelField Name="NArchivioOpera"></ext:ModelField>
                                    <ext:ModelField Name="TitoloOpera"></ext:ModelField>
                                    <ext:ModelField Name="IconaSupporto"></ext:ModelField>
                                    <ext:ModelField Name="NArchivioOggetto"></ext:ModelField>
                                    <ext:ModelField Name="TitoloAlbero"></ext:ModelField>
                                    <ext:ModelField Name="FaseCorrente"></ext:ModelField>
                                    <ext:ModelField Name="OrdineAlbero"></ext:ModelField>
                                    <ext:ModelField Name="IDFlussoProduzione"></ext:ModelField>
                                    <ext:ModelField Name="IDReferente"></ext:ModelField>
                                </Fields>
                            </ext:Model>
                        </Model>
                    </ext:TreeStore>

[Daniil]

This code snippet throws an exception as well.

Also it is not a full test case anyways.

[maurox]

For me is a little bit complicated to provide you a full test case.

But i've found my error: Root node has

Expanded="true"

and this on page load automatically load without store parameters (it seems).
Set

Expanded="false"

on root node fixed my problem.

Thanks