beforeShow

fires before a Form control is shown

beforeShow: (name: string, value?: any) => boolean | void;

Parameters:

• name|id: string - the name (or id, if the name is not specified) of the Form control
• value: any - the current value of the control

Returns:

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

Example

form.events.on("beforeShow", function(name, value) {    console.log("beforeShow", name, value);     return false;});

Related sample: Form. Events

Change log:

• added in v6.5
• Before v7.0, the event took one parameter - the control id.
• Starting from v7.0, the event takes two parameters: name|id and value.