Bound edit boxes do not display data

Question

I have a dialog that has 5 edit boxes bound to a Dataset. When I fill the dataset from the Form Load event the edit boxes do not show the data. When I fill the dataset at the Form Creation the edit boxes show the data. I use a parameterized query that depends a value passed from the parent window. How can I get the data to display in the edit boxes when I fill the dataset from the Form Load event? Thanks, John