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validates an Avatar control

validate(silent?: boolean, validateValue?: object): boolean;


  • silent: boolean - optional, if true - the method will return the result of validation without calling validation events and without modifying the control visually
  • validateValue: object - optional, the value to be validated. If not specified, the method validates the current value of the control


true, if a control is valid; otherwise, false


// -> true/false

When called without the silent parameter or with this parameter set to false, the method invokes the BeforeValidate and AfterValidate events and modifies the control visually.

form.getItem("avatar").validate(); // -> true/false
form.getItem("avatar").validate(false); // -> true/false