How do I reload/refresh the UIPickerView (with new data array) based on button press?

Question

IF I wanted a picker, for states/provinces, i haven\'t seen an example, but I mocked up shown above, a picker for US/Can/Mex. wondering can you dynamically switch t

Answer 1

In your button press action,

[self.pickerView selectRow:0 inComponent:0 animated:YES];