Sometimes, currentRow just isn't available as a table method when you're working within components of that table.
I've also noticed that on many occasions when we're in the inspector GUI for an element on a table where we can't iterate over currentRow, we often can iterate over item and/or i. Using these along with self, we can mimic the behavior of currentRow. Here's how, and why:
self.data[i].TABLE_COLUMN_NAME
...will work the same as...
currentRow.TABLE_COLUMN_NAME
This is because where we can iterate over an array with item or i, the i iteration is the index of the current item in a row, aka the currentRow. When we iterate over self.data, it expects us to designate a specific index in the table array. And since item and i are dynamic, it enables us to iterate over a table with the same behavior as currentRow in areas where it may not be available.
Hope someone else finds this useful! 