[CLOSED] Setting the IDProperty when using a TreePanel

[RCN]

In the following example if i open the root node the method LoadTree is called passing the nodeID parameter, in other works, it runs as expected.

But if i set the IDProperty of the Model _mdl the nodeID parameter is passed as a blank string.

Any ideas to overcome this problem?

<ext:TreePanel ID="_tp" UseArrows="true"  Title="Tree" Height="500" Width="500" Border="false"
    runat="server">
    <Store>
        <ext:TreeStore ID="_ts" runat="server" NodeParam="nodeID">
            <Proxy>
                <ext:AjaxProxy Url="/Example/LoadTree/">
                    <ActionMethods Read="POST" />
                    <Reader>
                        <ext:JsonReader Root="data">
                        </ext:JsonReader>
                    </Reader>
                </ext:AjaxProxy>    
            </Proxy>
            <Model>
                <ext:Model ID="_mdl" runat="server">
                    <Fields>
                        <ext:ModelField Name="ID" />
                        <ext:ModelField Name="Lastname" />
                    </Fields>
                </ext:Model>
            </Model>
        </ext:TreeStore>
    </Store>
    <Root>
        <ext:Node NodeID="0" Text="Root" />
    </Root>
    <ColumnModel>
        <Columns>
            <ext:TreeColumn ID="_cln1" runat="server" Text="ID" DataIndex="ID" />
            <ext:Column ID="_cln2" runat="server" Text="Lastname" Sortable="true" DataIndex="Lastname" />
        </Columns>
    </ColumnModel>
</ext:TreePanel>

public StoreResult LoadTree(string nodeID)
{

}

[Daniil]

Hi,

You should set up IDProperty of the JsonReader. Does it help?

[RCN]

it works If i set JUST the IDProperty of JsonReader. But when i use GridPanel i just need to set the IDProperty of Model. I wonder the reason of differente between GridPanel and TreePanel.

[Vladimir]

Set IDProperty for Model should be enough
Do you return 'ID' field in your data?

For example, I see that Root node has no ID (it uses standard NodeID only)
Why do you want to change standard IDProperty? Id field has another name in your data?