beforeUnSelect
Description
Fires on unselecting an item, but before the item is really unselected
Usage
beforeUnSelect: (
id: string | number,
subId?: string | number | undefined
) => void | boolean;
Parameters
The callback of the event takes the following parameters:
id
- (required) the item idsubId
- (optional) the id of a subheader of a swimlane or a text element of a line
Returns
Return false
to prevent an item from being unselected; otherwise, true
Example
// initializing Diagram
const diagram = new dhx.Diagram("diagram_container", {
type: "org",
select: true
});
// loading data
diagram.data.parse(data);
// attaching a handler to the event
diagram.events.on("BeforeUnSelect", function(id) {
console.log("Unselecting " + diagram.data.getItem(id).text);
return true;
});
Change log: The subId parameter has been added in v4.1
Related articles:
Related sample: Diagram. Org chart mode. Events