Select multiple rows dynamically for Ext.selection.CheckboxModel grid extjs

Question

I am unable to select multiple rows dynamically for grid having Ext.selection.CheckboxModel.

I have indexes for the rows which I want to select. What is happening is after select call.

for(var i=0;i<count;i++){
Ext.getCmp('loadFrameStateInfoTable').getSelectionModel().select(oldStateSelection[i].index);
}

I got the selection in grid but for only one row. That's the row which index is coming last from oldStateSelection[i].index.

The grid should have all rows selected.

Answer 1

As you can see in the docs, you need to set keepExisting if you don't want the other lines deselected.

select(oldStateSelection[i].index, true);