How to save store after click checkcolumn?

I use checkcolumn 开发者_运维问答in my grid. I want to save store AFTER click checkcolumn ( in my store autosave=false ).

After click checkcolumn 'click' event happend. add listener to this event, if status of checkcolumn is correct (I assume 'on') fireEvent 'time_to_save_store', setup handler to this event in grid which will save your store....