use extra params in store dynamically

Question

I have a form. In the form, I am using a comboBox with a store.

{
    xtype: \'combobox\',
    id: \'SubContractor\',
    name: \'SubCo         


        

Answer 1

For extjs4, it's rather:

store.load({
    params:{
        'foo1': bar1,
        'foo2': bar2
    } 
});