[CLOSED] Prevent GridPanel w/ Checkbox Selection Model from firing individual rows checkbox events when hdr checkbox is checked

[iansriley]

We have a grid panel with checkbox selection model that display some data with the amount in the last column.
Whenever a checkbox is checked or unchecked, the amounts are summed up and shown in a label. The select and deselect listeners are used for this operation.

However, when the header checkbox in the grid panel is checked or unchecked, the individual rows checkbox listeners are fired which is causing the page unresponsive for some time.

Is there any way to avoid the individual row listeners from firing when the header checkbox is checked and also when the page is changed using the paging toolbar.