didSelectRow UIPicker

I have a UIPicker (which loads as UIview when I开发者_StackOverflow中文版 click on a textbox control) I want the textbox to be populated with the values of the UIPicker as I scroll through them. Is this possible, I think the code should be placed in didSelectRow, but not quite sure how to do it.

Regards, Stephen

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Problem solved.... route.text = [list objectAtIndex:row];