Redirect if CheckBox is unchecked

I don't have any code for this, but would appreciate it if someone could provide an example of how the following could be coded.

I want to redirect a user to another URL (OnClick) if any/all of of the checkboxes are NOT checked. How can this be achieved?

If the user checks all the checkboxes then if (Page.IsValid) Response.Redirect to expected page.

Thanks in advance.