For example, really work, you should declare validation rules for the attributes you plan to validate.This should be done by overriding the yii\base\Model::rules() method.The following example shows how the validation rules for the Most validators have default error messages that will be added to the model being validated when its attributes fail the validation.For example, the required validator will add a message "Username cannot be blank." to a model when the Some validators may support additional error messages to more precisely describe different causes of validation failures.
A boolean value specifies whether to show grid header or not., and the developers haven’t done any of their own filtering.This exploit would work just as well in most other programming languages as most of them also lack default input filtering.Specific field options depends on concrete field type. A boolean value specifies whether editing is allowed. A boolean value specifies whether to show inserting row or not.A boolean value specifies whether to highlight grid rows on hover.