Calling dataSource.parameterMap function from outside

[Olli]

Hi,

I have four multiSelects that contain hierarchical data so that  level 4 item knows its parents in level3, level2, and level1 and so on.

Each of multiselects has their own remote dataSource. Everytime when a dataSource requests for items from server the parameterMap function reads selections from its "parent" multiselects and puts them as parameters to request. I also attach the multiSelect's search text as parameter to the request.

Like this way:

$("#level3-multiselect").kendoMultiSelect({
        autoBind: false,
        dataTextField: "name",
        dataValueField: "id",
        dataSource: {
            serverFiltering: true,
            transport: {
                dataType: "jsonp",
                read: baseurl: 'http://myurl'
                parameterMap: function(options, operation) {
                    var _name = "";
                    if ('filter' in options && options.filter.filters.length > 0) {
                        _name = options.filter.filters[0].value;
                    }
                    return {
                        level1ids: getLevel1Ids().join(),
                        level2ids: getLevel2Ids().join(),
                        name: _name
                    }
                }
            },
            schema: {
                data: "items"
            }
        }
    });

My problem is that the multiselects parameterMap function is fired only when I change the text in that particular box. In additon to that, I would also like to run parameterMap function every time when a parent-level selection changes. I know there is a 'selected' event in multiSelect widget, but how can I call parameterMap function of a multiSelects dataSource?

Olli

[Olli]

Figured out the solution with dataSource.query() method that is called for all the sublevel multiSelects when a multiSelect's dataBound event is raised.