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beforeCellsAdd

Description​

Fires before new cells are added to a swimlane

Usage​

beforeCellsAdd: (swimlaneId: string | number) => boolean | void;

Parameters​

The callback of the event takes the following parameter:

  • swimlaneId - (required) the id of the item

Returns​

Return false to prevent adding of new cells, otherwise true

Example​

// initializing Diagram
const diagram = new dhx.Diagram("diagram_container", {
    type: "default"
});
// loading data
diagram.data.parse(data);

// attaching a handler to the event
diagram.events.on("beforeCellsAdd", (swimlaneId) => {
    console.log(swimlaneId);
    return true;
});

Change log: Added in v4.0

Related articles: Configuring Swimlanes