Character jumping script without gravity?

Currently, my main character in my game does not have gravity effects turned on at the moment because he falls through the plane he’s supposed to be resting on. Instead, I have kinematic checked. Is there a way to prevent my character from falling through the floor with gravity turned on so that I could use a simple AddForce → upwards? And if not, what would be a method of jumping without the gravity effect checked?

Thanks

I think these videos will help you with what you want to do. http://www.3dbuzz.com/vbforum/content.php?212

Section 3 has a video on jumping and gravity,

You need to add a collider to the plane in order for your character to not fall though it. You can then make that collider/plane kinematic so that he does not fall through. Then you can simply do:

rigidbody.AddForce (Vector3.up * 10);

or put something like this in one frame:

rigidbody.velocity.y = 7;