{ 
  "GridBasic_Sort": {
    "table":"cust",
    "layout":"grid",
    "caption":["Customer","Customers"],
    "fields":[
      {"name":"cust_id","caption": "ID"},
      {"name":"cust_name","caption":"Customer","sqlsort":"ifnull(cust_name,cust_id)"}
    ]
  }
}