Passing value from MDI Parent to MDI Child

Question

Sir, I doing a program related to MDi form.

I have a MDi Parent Form represent Student Details and a MDi child form to Display the information.

How can pass MDi Parent form Data to its MDi Child Form.

There is a button 'Next' in Parent Form.

when i click the that  button, I want to display values of parent from in child form.

how can it possible?