Extjs 4 grid: Add a checkbox column without attaching to a datafield

Question

I need to have a column in my Extjs grid with a checkbox which doesn't have a data field assigned to it. I have tried checkColumn plugin but it only works when I assign a data field to it.

What I mean is that it works for the following code:

{header: 'Business Call?',dataIndex: 'business', width: 55, xtype: 'checkcolumn'}

But for this code, it only displays a checkbox, but it's not clickable:

{header: 'Set Business Call', width: 55, xtype: 'checkcolumn'}

What I want to happen is, when the user ticks the checkbox, I need to do some operation on the respective database row. Is this possible with Extjs?

Answer 1

What are you planning on doing with the clickable checkbox? If it's simply the act of clicking that you're trying to intercept, what is harmed by specifying a dataIndex?