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beforeChangeProperties

fires before configuration attributes of the control are changed dynamically

beforeChangeProperties: (properties: IBaseLayoutItem) => boolean | void;

Parameters:

properties: object - an object with configuration attributes of the control and their new values

Returns:

Return false to cancel the default action of the event; otherwise, true.

Example

form.getItem("spacer").events.on("beforeChangeProperties", function(properties) {
console.log("beforeChangeProperties", properties);
return true;
});

Change log:

added in v7.0