I'm not familiar with that control and, without it in front of me or appropriate screenshots of available properties, methods, etc., I can't give you explicit instructions on how to do it. I have two theoretical ways that may work:
Using the VisibleRow count, do a for loop on visible row count. First thing in the loop should be a comparison of the top row to your desired string. Then use a keystroke to go down a row. Then loop that. I've done something similar in other controls and this has worked with some success.
Use a for loop to loop through all 33 rows. In the loop, for any given row, check to see if that row has a property that indicates visibility. If the row is not visible, do nothing. If it is, do your comparison.
These are JUST guesses... hopefully they'll point you in the correct direction.
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Why automate? I do automated testing because there's only so much a human being can do and remain healthy. Sleep is a requirement. So, while people sleep, automation that I create does what I've described above in order to make sure that nothing gets past the final defense of the testing group. I love good food, good books, good friends, and good fun.