Checkbox and Radio in DataTable.How to get selected value

http://docs.webix.com/samples/15_datatable/04_editing/07_checkbox.html
How to get selected value

You can use something like next

$$("$datatable1").eachRow(function(id){ 
  if (this.getItem(id).ch1) alert(id+" is checked");
})

Code will iterate through grid and check for which row checkbox is checked ( “ch1” - id of checkbox column )