Get value from field on edit event

[Peter]

When the my grid is popup edit mode, I need to get a value from the selected row in the edit event handler for the grid. "args.model.myFieldname" does not work. I can't seem to find a way to get a handle on the edited row data item I need.  I need to do this because when document ready fires in my popup, the data model is not yet loaded, but I need to use the value of one of the fields in the model to do some other things in the popup UI. I am sure this must be something simple, but I have not found the answer. Any help would be much appreciated.

[Peter]

Issue resolved: self-inflicted wound (typo).