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JavaScript Form - beforeShow Button Event

beforeShow

fires before a Button control is shown

beforeShow: (text: string) => boolean | void;

Parameters: Returns:

Return false to prevent a control from being shown; otherwise - true.

Example

form.getItem("button").events.on("beforeShow", function(text) {
console.log("beforeShow", text);
return true;
});
Change log:

added in v7.0


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