[3.0] this.grid is undefined

[FkrZiM]

Hello
I need help.
My grid pattern to other screens (the father) is the problem "random". Sometimes it happens, sometimes not (almost always).
Seems to be happening in Ext.data.Store the following line:

listeners: {
    'load': function (ste) {
        Ext.getCmp('grid-' + windowId).getSelectionModel().selectFirstRow();
    }
}

in this line: ->> Ext.getCmp('grid-' + windowId).getSelectionModel().selectFirstRow();

All help is welcome.
Thank you.

[tryanDLS]

http://extjs.com/learn/Ext_Forum_Help

[FkrZiM]

Someone to help?
I need that when open the window, automatically select the first row of the grid.
Sorry for my English. I'm Brazilian.
Thanks

[Animal]

It's because of deferred rendering. Defer the call for a few milliseconds.

[FkrZiM]

what's the command?
I tried with delay and failed.
Actually are two tabs, and when I select something in the first tab, the second tab loads the database dependence of the first tab.
Following is the most complete command:

this.store = new Ext.data.Store({
  proxy: ........ (not necessary)
  }),
  reader: ......... (not necessary)
  },
  fieldsStore),
  listeners: {
    'load': function (ste) {
      Ext.getCmp('grid-' + windowId).getSelectionModel().selectFirstRow();
    }
  }
});

gridRegister.superclass.constructor.call(this, {
  id: 'grid-' + windowId,
  height: 320,
  title: 'Information',
  border: true,
  loadMask: {
    msg: 'Loading...'
  },
  listeners: {
    render: function (g) {
      g.getSelectionModel().selectRow(0);
    },
    delay: 10
  },
  sm: new Ext.grid.RowSelectionModel({
    singleSelect: true,
    listeners: {
      rowselect: function (sm, row, rec) {
        Ext.getCmp('form-' + windowId).getForm().loadRecord(rec);
      }
    }
  })
});

[Animal]

delay 10 won't be enough because IIRC, after rendering the Grid, the View's final update is only deferred by 10ms, so your listener will be executed too soon.

I know its a bit crap having to delay arbitrary times, but the next release has a viewready event which will be the right one to hook into to select the first row.

[FkrZiM]

Ok.
Thank's for your help, but yet not solved my problem.

Sorry, but I'm beginner in ExtJS.

[Animal]

OK, back to a problem. What problem, where?

[FkrZiM]

The problem is that sometimes not only selects the grid, causing errors. But even so, pass the information on the grid for the form and the second tab (depends on the first tab).
Only sometimes.

My English is very bad, sorry.

[Animal]

No. I'm lost now.