How can I get the value in the second column?

Hello

I'm unsure how to retrieve the value in the second column of a combobox. I need to use this value to compose a variable called 'Linea'. However, when I obtain it, I receive an index rather than a value (such as 1, 2, 8, or 4) when the LR was selected during depainting.

Thank you for your assistance.