1. Links to 3rd party websites except jsfiddle and playgrounds like it are disallowed. If you wish, prepare and post a sample about jqxGrid in jsfiddle like all other people in the Forum do.
2. Despite all in 1. I checked your sample and your Grid is not bound correctly. Please, refer to the Default Functionality demo of jqxGrid to learn how to create Checkbox columns and how to data bind the Grid to a data source. “type” of a column is also invalid parameter. “type” is valid for a data field and it should always be set.
Best Regards,
Peter Stoev
jQWidgets Team
http://www.jqwidgets.com/