Unable to retrieve APO gird cell contents through scripting

I'm trying to retrieve text value from the cell of an APOGrid through scripting command "GetCellValue(column#, row#) but I'm unable to retrieve text value from the cell, in fact i was not able to retrieve any value from the cell like tooltip, cellfromat etc. But at the ame time using script ii was able to update value of the cell through scripting API 'SetCellValue) and was able to perform actions like (click, double click, select cell etc) on the cell. I've tried this operation on many cells in different APOGrid but never able to retrieve cell contents.

Does any one have a