Filter DataSource Manually

The Kendo UI MultiSelect has a built-in detection mechanism that checks whether the data is filtered or not.

The widget uses this information to decide when to persist the selected value that does not exist in the source. When the source is manually filtered, the widget loses the details about the state of the DataSource, which might lead to inconsistent behavior.

The following example demonstrates how to manually filter the dataSource instance of the MultiSelect.

<div id="example">
    <div class="demo-section k-header">
        <h4>MultiSelect</h4>
        <select id="multiselect" multiple="multiple"></select>
    </div>
    <script>
        $(function() {
            var ms = $("#multiselect").kendoMultiSelect({
                dataTextField: "name",
                dataValueField: "value",
                dataSource: {
                    data: [{ name: "One", value: 1 }, { name: "Two", value: 2 }]
                }
            }).data('kendoMultiSelect');

            //Filter the source manually
            ms.dataSource.filter({
                field: 'value',
                operator: 'eq',
                value: 1
            });

            <!-- IMPORTANT: Update filter state of the widget -->
            ms.listView.setDSFilter(ms.dataSource.filter());

            ms.value(1);
        });
    </script>
</div>

See Also

• MultiSelect JavaScript API Reference
• How to Cascade from DropDownList
• How to Filter Values in Widgets Sharing the Same Data
• How to Preselect Items Using MVVM Binding
• How to Reorder Selected Items
• How to Select All Values with Single Selection
• How to Use MultiSelect with Bootstrap Modal Window
• How to Wire Blur Event of the Filter Input

For more runnable examples on the Kendo UI MultiSelect, browse its How To documentation folder.