onValidationError of DataCollection, Events Webix Docs

objectthe data item object details

objectthe 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

Validation with Message
Validation with Complex Message

Details

The last parameter, details, contains invalid markers for each data key that has been validated and looks like:

{
    title:true,  // hasn't passed validation
    rating:false // has passed validation
}