AgDataGrid Suite is available to you for free with full source code.
Run-time royalty free.

If you are renewing your license before or 2 months after the current expiration date, the new expiration date will be calculated based on the original order date.
For example, if your original subscription started when your order was placed on 5th Jan 2009 and you only decide to renew on 10th Feb 2010, your renewed subscription will be back dated slightly and be set up to end on 5th Jan 2011. If your subscription has been expired for more than 2 months please contact ComponentSource for pricing information.