onValidationError

fires when newly loaded/added/edited data fail to pass validation

void onValidationError(number|string id,object obj,object details);

id	number\|string	the ID of the data item that is being validated
obj	object	the data item object
details	object	the validation result for data keys under validation

Example

webix.ui({
    view:"datatable",
    rules:{
        title:webix.rules.isNotEmpty,
        rating:webix.rules.isNumber
    },
    on:{
        onValidationError:function(id, obj, details){
            var index = this.getIndexById(id)+1;
            webix.message({ type:"error", text:"Empty title for row "+index });
        }
     }
});

Related samples

Details

The above pattern of validation goes for collections (used for validating data in DataTable, List, DataView, etc.)

Since forms are validated differently, the event has different parametes, namely:

key (string) - data key that is being validated
obj (object) - data object

on:{
    onValidationError:function(key, obj){
      var text;
 
      if (key == "login")
        text = "Login can't be empty";
      if (key == "email")
        text = "Invalid Email";
 
      webix.message({ type:"error", text:text });
    }
}