Currently multiselect control has a change event only which is supposed to take care of add/remove event. Please add proper events or pass info in the change event about what changed, so that developers doesn't have to write the same JS again and again. See OnaBai's reply here http://stackoverflow.com/questions/16608565/kendo-multiselect-trigger-an-event-when-an-item-is-removed http://stackoverflow.com/questions/17653958/kendo-ui-multi-select-remove-selected-element-using-value
Released - further details in the following github issue: https://github.com/telerik/kendo-ui-core/issues/1658
I agree! This is obviously an omission of a basic feature of this control's change event. Although maintaining a "before" list, and finding what is now gone when a remove happens is not difficult, it is not something your customers should be having to do. If you could just include the action (add/remove), as well as the changed item on the "changed" event arg, it would save your customers time and frustration. It seems like you could add this without it being a breaking change as well.