Custom validations are not triggered by blurring the input (as it visually seems), but when the set() method of the underlying model is called to change the value of the edited field.


Possible workaround:


  $('input[name="ProductName"]').bind('blur', function(){
    // get a reference to the built-in validator
    var validator = e.container.data("kendoValidator");
    validator.validate();
  })