Hi Russell,
The
State is just a custom attribute in that example. It could have been any other name. You need to observe the
ToggleCheck and
ApplyImage javascript functions in that example. They just put an image which looks like a checkbox next to the clicked item.
I hope this will get you started.
Regards,
Veskoni
the Telerik team
Check out
Telerik Trainer, the state of the art learning tool for Telerik products.