onBeforeEditorAction

fires when the user clicks Save/Remove buttons in the Kanban editor

void onBeforeEditorAction(string action,object editor,object obj);

action	string	"remove" or "save"
editor	object	the Editor object
obj	object	the data item object

Example

$$("kanban").attachEvent("onBeforeEditorAction",function(action,editor,data){
    if (action === "save" && !editor.getForm().validate()){
        return false;
    }
});

Details

The event is handy if you add validation for your custom editor.