MultiSelect's dropdown items remain filtered on clearing filter text through clear button

[kdelarue]

Bug report

If some text is written to filter items and then the clear button is clicked, the text is deleted, but the filtered results remain visible.

Reproduction of the problem

1. Go to https://demos.telerik.com/kendo-ui/multiselect/events
2. Type asdf in the MultiSelect - No data found is displayed in the dropdown.
3. Click on Clear button - filter text is deleted.

Current behavior

No data found is displayed, although there is no text in the input.

Expected/desired behavior

All items are visible, as there is no filter applied in the input. NOTE: If the filter text is cleared by backspace or delete button, all items are visible as expected. NOTE: Currently clicking on MultiSelect's input clears the filter.

Workaround

Handle the click of the clear button and call MultiSelect's search method with empty string - Dojo snippet :

        $(".k-multiselect .k-clear-value").click(function() {
          var multiselect = $("#products").data("kendoMultiSelect");
          multiselect.search("");
        })

Thus, the popup shows all items as expected.

Environment

• Kendo UI version: 2022.3.913
• Browser: [all]

[PekoPPT]

Also reported in ticket 1522276

[zdravkov]

report in ticket - 1547895

[Dimitar-Goshev]

Increased priority due to the following report - https://feedback.telerik.com/kendo-jquery-ui/1582729-for-bug-while-add-new-in-multidrop-down-selection-search-some-text-and-click-on-clear-button-and-than-add-on-add-new-button-now-the-text-is-saved

The issue affects our Demo's custom scenario for adding new item - https://demos.telerik.com/kendo-ui/multiselect/addnewitem

Workaround: handle the click of the clear button and call MultiSelect's search method with empty string - Dojo snippet :

        $(".k-multiselect .k-clear-value").click(function() {
          var multiselect = $("#products").data("kendoMultiSelect");
          multiselect.search("");
        })

Thus, the popup shows all items as expected.