How to validate the number of columns in a table?

I am trying to validate the number of columns generated in a table through ranorex. For example say a car is being bought and the payment is done in 12 installments. The application does divide the amount in 12 equal installments and display them in a table. I have already put a screenshot in the report. But would like to show that there are exactly 12 columns in the table. How can i achieve this..please help.