ExtJs checkboxselectionmodel - extjs

Question

I am using GridPanel w/CheckboxSelectionModel for item selection.
In the edit mode, where some options were already picked, I am trying to pre-select the rows when loading the form.
...
store.load();
//curSelections is an array containing the some ForeingKey IDs of the selected records.
...
for (var i = 0; i < curSelections.length; i++) {
console.log('found personel ' + curSelections[i] + ' at ',
store.findExact('Id', curSelections[i]));
selectedRecords.push(store.findExact('Id', curSelections[i]));
}
//everything is fine according to console log.
checkGrid.getSelectionModel().selectRecords(selectedRecords, true);
formWin.show();
this does not work.
I try to call" selectRecords" also on some other page/form events, but none of those even fires.
grid.addListener('show',
grid.on('show',
formWin.on('activate',
formWin.on('show',....
some of the grid code
var sm = new Ext.grid.CheckboxSelectionModel({
singleSelect: false,
sortable: false,
checkOnly: true
});
checkGrid = new Ext.grid.GridPanel({
xtype: 'grid',
store: obPersonelStore,
loadMask: true,
layout: 'fit',
height: 120,
id: 'grdIsBirimiPersonelListesi',
columns: [
sm,
{
I am missing something simple, but dont know what it is.
Any kind of help is greatly appreciated.

Answer 1

Store.findExact returns a numeric index. SelectionModel.selectRecords expects an array of Record objects. Have you tried selectRows instead? Either that, or use store.getAt to retrieve records by index to pass to selectRecords().

Answer 2

try:
var store = new Ext.data.Store({
...
});
var grid = new Ext.grid.GridPanel({
store: store,
...
});
store.on('load', function() {
grid.getSelectionModel().selectFirstRow();
});
store.load();

Answer 3

I'm not 100% certain what you want to achieve. You said:
I find the selected rows of the entire list
Do you mean you want to select every row? In that case you can use the selectAll() method of the CheckboxSelectionModel.
If you only want to select some of the rows then I'd need to see the code you're using to get those rows in the first place but it could be that you want to use selectRecords() rather than selectRows().