beforeExpand

fires before expanding a Layout cell

beforeExpand: (id: string) => boolean | void;

Parameters:

• id: string - the id of a cell

Returns:

Return false to block expanding a cell; otherwise, true.

Example

layout.events.on("beforeExpand", function(id){
    // your logic here
    return false;
});

Related sample: Layout. Events

Change log:

added in v6.4