How to pass parameters to crystal report from multiple textboxes and datetimepicker in windows form?

Question

Hello,

I want to pass the values that the client chose in the windows forms application as parameters in crystal report.
I have a period range that he/she chooses (I have two datetimepickers on the form) and a text box. These values I want to pass as parameters to the crystal report.

Can anybody help me please?
Thanks