I need help with following Problem:

i would open a new Window on click or doubleclick in a grid row.

The Grid works fine, all entrys are visible after loading.

In the modules/desktop/App.js are all modules defined:

modules/desktop/App.js:
PHP Code:
        requires: [
                ...
                'MyDesktop.FormServerDetails',
                'MyDesktop.GridServerListe',
                ...
        ],

...

        getModules : function(){
                return [
                        ...
                        new MyDesktop.FormServerDetails(),
                        new MyDesktop.GridServerListe(),
                        ...
                ];
        }, 

modules/desktop/GridServerListe.js:
PHP Code:
Ext.define('MyDesktop.GridServerListe', {
        extend: 'Ext.ux.desktop.Module',

        requires: [
                'Ext.data.*',
                'Ext.util.Format',
                'Ext.grid.*'
        ],

        id:'grid-servers',

        init : function(){
                this.launcher = {
                        text: 'Server Liste',
                        iconCls:'icon-grid',
                        handler : this.createWindow,
                        scope: this
                };
        },

        createWindow : function(){
                var desktop = this.app.getDesktop();
                var win = desktop.getWindow('grid-servers');

                Ext.define('ServerListe', {
                        extend: 'Ext.data.Model',
                        fields: [
                                        'server_id',
                                        'servername',
                                        'memory',
                                        'os',
                                        'service_tag',
                                        'support_id',
                                        'support'
                        ]
                });

                var store_serverListe = new Ext.data.Store({
                        model: 'ServerListe',
                        proxy: {
                                type: 'ajax',
                                url: '/remote/get_server_liste.php',
                                reader: {
                                        type: 'json',
                                        root: 'servers'
                                }
                        }
                });

                var grid_serverListe = new Ext.grid.Panel({
                        border: false,
                        store: store_serverListe,
                        columns: [
                                new Ext.grid.RowNumberer(),
                                {
                                        text: "Server ID",
                                        dataIndex:'server_id',
                                        hidden:true
                                },{
                                        text: "Servername",
                                        flex: 1,
                                        sortable: true,
                                        dataIndex: 'servername'
                                },{
                                        text: "Memory",
                                        dataIndex: 'memory',
                                        width:130
                                },{
                                        text: "OS",
                                        dataIndex:'os',
                                        width:200
                                },{
                                        text: "Service TAG",
                                        dataIndex:'service_tag',
                                        width:80
                                },{
                                        text: "Support ID",
                                        dataIndex:'support_id',
                                        hidden:true
                                },{
                                        text: "Support",
                                        dataIndex:'support'
                                }
                        ]
                });

                grid_serverListe.on('itemclick', function(me, record){
                        console.log('itemclick :: server_id:   '+record.data.server_id);
                        console.log('itemclick :: servername:  '+record.data.servername);
                        console.log('itemclick :: memory:      '+record.data.memory);
                        console.log('itemclick :: os:          '+record.data.os);
                        console.log('itemclick :: service_tag: '+record.data.service_tag);
                        console.log('itemclick :: support_id:  '+record.data.support_id);
                        console.log('itemclick :: support:     '+record.data.support);

/*
                        // doesn't work :(
                        // Errormessage: win_contactDetails is undefined
                        var win_serverDetails=Ext.getCmp('form-serverDetails');
                        win_serverDetails.show();
*/
                });



                if(!win){
                        win = desktop.createWindow({
                                listeners:{
                                        afterrender: function(){
                                                store_serverListe.load();
                                        },
                                        itemclick : function() {
                                                var data = win.getSelectionModel().selected.items[0].data;
                                                alert(data);
                                        }
                                },

                                id: 'grid-servers',
                                title:'Server Liste',
                                viewConfig: {
                                        stripeRows: true
                                },
                                width:740,
                                height:480,
                                iconCls: 'icon-grid',
                                animCollapse:false,
                                constrainHeader:true,
                                layout: 'fit',
                                items: [
                                        grid_serverListe
                                ],
                                tbar:[{
                                        text:'Add Something',
                                        tooltip:'Add a new row',
                                        iconCls:'add'
                                }, '-', {
                                        text:'Options',
                                        tooltip:'Blah blah blah blaht',
                                        iconCls:'option'
                                },'-',{
                                        text:'Remove Something',
                                        tooltip:'Remove the selected item',
                                        iconCls:'remove'
                                }]
                        });
                }
                win.show();
                return win;
        },
}); 
modules/desktop/FormServerDetails.js
PHP Code:
Ext.define('MyDesktop.FormServerDetails', {
        extend: 'Ext.ux.desktop.Module',

        requires: [
                'Ext.form.*'
        ],

        id:'form-serverDetails',

        init : function(){
                this.launcher = {
                        text: 'Server Details',
                        iconCls:'icon-grid',
                        handler : this.createWindow,
                        scope: this,
                        windowId: 'form-serverDetails'
                };
        },

        createWindow : function(){
                var desktop = this.app.getDesktop();
                var win = desktop.getWindow('form-serverDetails');

                if(!win){

                        var form = Ext.widget('form', {
                                layout: {
                                        type: 'vbox',
                                        align: 'stretch'
                                },
                                border: false,
                                bodyPadding: 10,

                                fieldDefaults: {
                                        labelAlign: 'top',
                                        labelWidth: 100,
                                        labelStyle: 'font-weight:bold'
                                },
                                defaults: {
                                        margins: '0 0 10 0'
                                },
                                items: [{
                                        xtype: 'fieldcontainer',
                                        fieldLabel: 'Servername',
                                        labelStyle: 'font-weight:bold;padding:0',
                                        layout: 'hbox',
                                        defaultType: 'textfield',

                                        fieldDefaults: {
                                                labelAlign: 'top'
                                        },

                                        items: [{
                                                flex: 1,
                                                name: 'serverName',
                                                fieldLabel: 'First',
                                                allowBlank: false
                                        }]
                        });

                        win = desktop.createWindow({

                                id: 'form-serverDetails',
                                title:'Server Details',
                                closeAction: 'hide',
                                width:740,
                                height:480,
                                animCollapse:false,
                                constrainHeader:true,
                                layout: 'fit',
                                modal: true,
                                items: [
                                        form
                                ]
                        });
                        win.show();
                        return win;
                }
        }
}); 
Can anyone please help me with this issue ?

Best regards
Mikesch