Flex 3: dynamically created checkbox column in datagrid - data population issues and event listener?

The initial scenario was: all columns were defined in the mxml file. The checkbox column used itemrenderer and was working properly. I was using the same datagrid in 3 different cases - only thing was that some columns were set visible/invisible depending on the 'views'.

The problem was when shifting 'views' and populate the grid and shift 'views' again, the column widths kept increasing exponentially. I excluded the checkbox column and everything worked fine; columns widths were ok. I included the checkbox column back and tried setting the column widths in AS file and the column-increasing-exponentially problem was fixed but the column widths were never the same when populating grid in view A and when populating grid in view B.

...So I ventured out in trying to set the columns in AS file just after obtaining DB data. Hope you can find yourself in those situations. Thanks for helping.

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