Question

how to write a function to multiply two column values and set result to third column and loop this for all records for each add, delete, edit actions?

i tried to use store’s add, remove, and update events and
then set value to third column and commit changes.
problem is, its going in a never ending loop since as soon as i set value and then commit,
it fires the update event and call the function again.

any idea how to do this properly?

Regards

Answer 1

I think you need this Ext.grid.column.Column.renderer. Something like :

renderer: function(value, meta, record){
    return record.get('val1')+record.get('val2');
}

After you added, removed or updated something just do store.load() and you should be fine!!

p.s. you want to submit the third value back ?