 "oninit":"_this.oninit(xmodel);",
      "onload":"_this.onload(xmodel);",
      "fields": [
        {"name": "cust_id", "caption":"Customer ID", "type": "int", "actions":"B",
         "control":"textbox", "controlstyle":"width:80px;", "validate": ["IsNumeric","Required"] },
         
        {"name": "cust_name", "caption":"Name", "type": "varchar", "length": 256, "actions":"B",
         "control":"textbox", "controlstyle":"width:260px;", "validate": ["MaxLength:256","Required"] },
         
        {"name