What's the general approach to building a custom action button in a gridview row
>>> that will return the value of the gridview index, so it can be used to get at other items in the row and do something completely custom with it?
Like in addition to the hardwired select, edit, delete buttons.
I assume I start with a template column...I'm just not sure how or if the button "knows" which row it belongs to.
Any help with this would be appreciated.