A data grid has a helper command that will print off the first line of each key in the internal data array. If you need to quickly see what the internal array looks like just send "PrintKeys" to the data grid (1). This will print the array in the message box (2).

Note: You should not rely on PrintKeys for anything other than taking a quick peek at the array. It only prints the first line of each key so it is not a 100% accurate view of the data.